A junior sculler had capsized a club boat. He was trapped by his feet.
He then struggled so hard to escape that the stretcher broke in half,
but both parts still remained attached to the boat. How, in the end, he
freed himself I do not yet know, but by great good fortune he got free,
so he survives.
Examining that stretcher, I find that the heel restraints are in good
mechanical condition and neither broken nor detached.
What scandalises me is that these restraints were and remain set to
allow over 12cm of heel lift.
Regular RSR readers will know that I introduced heel restraints into
this sport ~35 years ago, after the move from clogs to shoes caused a
series of under-publicised drownings & narrow escapes for rowers unable
to extract their feet when capsized. It took about 10 years for FISA to
catch on and mandate heel restraints, during which period more rowers
drowned. After which, it took no time for various self-appointed but
ignorant "experts" to make up worthless standards for their application.
And readers will know (or can Google back) that I have carefully
explained why the maximum lift off the heel of the stretcher should
_never_ exceed 5cm/2".
But still we see bootlaces with pretty bows tied in them being supplied
in new boats as so-called heel restraints. And still we have the (I
have to say this) shameless idiots who invent British Rowing's safety
documents still instructing that shoe heels be able to rise to the level
of the lowest shoe-fixing screw in the stretcher. Such inanities also
prevail in may other countries.
The young man who had this so-narrow escape (in very cold water) may
well have strapped his feet in rather tightly (who knows, but if so, who
let him think that a good idea?). But had his heel lift been restricted
to 5cm, he would still have come straight out of his shoes. (I know
this because anything that I recommend I have previously exhaustively
tested - especially heel restraints).
It was only because the amount of lift on that stretcher followed
exactly that idiotic British Rowing recommendation, resulting in that
12cm of lift, that this sculler came so close to death. And it is only
by great good fortune that the club is not now facing an inquest into
his death.
Of course, on all past form British Rowing would, in that event, still
be actively blaming the victim :( .
Now, please will safety officers as a matter of the greatest priority
check _all_ heel restraints in every club & private boat in their club.
And if any are found (as most will be) to exceed that 5cm/2" of lift,
will they please heed this warning & take immediate action to replace
them with strong nylon cord ties, with the knots heat-sealed to prevent
their undoing or being undone.
Upside down in a boat is a rotten way to die.
Thank you -
Carl
--
Carl Douglas Racing Shells -
Fine Small-Boats/AeRoWing Low-drag Riggers/Advanced Accessories
Write: Harris Boatyard, Laleham Reach, Chertsey KT16 8RP, UK
Find: http://tinyurl.com/2tqujf
Email: ca...@carldouglas.co.uk Tel: +44(0)1932-570946 Fax: -563682
URLs: www.carldouglas.co.uk (boats) & www.aerowing.co.uk (riggers)
There was a comment on Talk Rowing a couple of years ago from an
umpire/divrep that a rule change to come more into line with the FISA
rules/guidelines had been suggested that year. I was waiting to see it
come through in the updated rules of racing, but it didn't happen.
Note: (I'm sure that Carl knows this already) FISA's Minimum Guidelines
for the Safe Practice of Rowing, published in 2005, recommended 5cm
maximum heel lift, but the change to the FISA Rules of Racing in 2009
was 7cm maximum.
I know this has been an ongoing issue in RSR but I have never heard of
any rationale from the governing bodies about why heel restraints
should be longer than 5 cm. Do they believe that that oars creatures
can extend their heels off the base farther than that to advantage at
the catch or end of drive?
I applaud Carl for his tenacity and professional focus on matters of
safety like this and buoyancy. The sports needs more professionals
like him.
Further to the above, my attention has been drawn to the current BR advice:
http://tinyurl.com/4d4ay8x
Its wording is a remarkably close copy of my own instructions, given at
various times here on RSR (imitation is, after all, the most sincere
form of flattery).
Maybe to be a bit different, they recommend using the hard to get & more
light-sensitive Dyneema, a spun polyethylene fibre. Does anyone know a
local store that stocks Dyneema cord? But 4mm braided nylon cord is
available in every decent hardware shop in the land and has fair light
stability? So I really worry that, guided by BR, the more anal tendency
will take this as an excuse to do nothing rather than be accused of not
doing it by the book.
And then BR commits the cardinal sin of repeating, as follows:
"5. The position of the knot should conform with the British Rowing
Rules of Racing - “the heel shall not be able to rise above the lower
fixing point of the shoe”."
But, as an afterthought, it adds:
"A good setting is to allow no more than 50mm clearance between the
stretcher and the sole at the heel."
So the dangerous nonsense comes first, while the sound advice is
relegated to a contradictory afterthought. They probably inserted that
lest someone with BR-approved long restraints drowns & questions are
then asked in court. Sorry, BR, but that just won't work - either to
preserve lives, or to save your sorry necks.
Nor does BR mention the need to protect heel restraints against chafing :(
BR's piece on heel restraints is, frankly, prolix. As well as being
defective, it wanders off into Wikipedian irrelevance in its ramblings
on light stability & Dyneema. (If, as they regurgitate, it loses so
much strength so quickly, why use it in a low-maintenance,
safety-critical role in an environment like rowing?) We all make wide
use of nylon & know what it is & does. What ever became of the KISS
principle, so vital in safety matters? It is by going into irrelevant
detail while providing confusing advice on key details that safety
literature fails.
Null points, BR
Some mention of heel restraints in the council minutes - no detail
though. I wonder if anyone here knows what was going on?
MINUTES OF COUNCIL MEETING 09/06/2009
"G. Harris would take forward to FISA the Association’s concerns about
the positioning of bow balls and would ask the FISA Materials Commission
to reconsider the decision made with regard to heel restraints.
Following the recent World Cup it was the view of GB Rowing that the
proposals put forward by FISA Control were not workable."
DRAFT MINUTES OF COUNCIL MEETING 27/09/2009
"However, FISA did not wish to alter the current wording on the fixing
of heel restraints. M. Williams said that FISA Council had discussed
this; the Umpires Commission believed the new rule was working quite
well and that the change proposed by British Rowing would make the rule
harder to implement. The matter was still subject to further debate and
would be reviewed again in January."
Good discussion--although having been trapped under a boat with shoes
(larger than my size of feet) I will stick to my clogs.
By the way Carl--is there a non rotten way to die
Best wishes
George
Thanks, Carl. This winter I've resumed temp duty coaching at local
university where we use singles heavily (every day), checked the
rigs,
got us all correctly lit up, rowing on the right side, water tested,
but I
neglected to check heel restraints... (shakes head), the other clubs
I teach at it's all clogs in the singles, indeed I retro'd them into
every single for club use.
I think the rowing world would be well served by a quasi-clog, a
light clog with
a heel cup and tarsal strap that bolts into the footboards. Club
crews could order
those instead of shoes for those shells where there are huge size
differences in the bodies that step into the shells on a daily
basis, won't have to monitor the heel restraints (as heels lift out
of the heel cups every stroke), they'll be more sanitary,
safer, and won't negatively affect the stroke.
Good for almost everybody. Those with duck-width feet and sensitive
sticky-out heels, such as myself, find one-size-fits-most clogs and
fixed heel cups to be disablingly uncomfortable. Converting old
running shoes for rowing use is trivial - a hole in the sole, a short
bolt and big washer, and plenty of rubber in the heel to run a length
of 7-mm nylon line through to tie to the footboards.
I'm with you, Zeke, & I'm with Sully too. The problem I have is with
narrow all or nothing perspectives. What are we comparing?
Shoes can be a complete nightmare, especially in club boats. The wrong
size or shape, soon falling apart, insanitary & stinking to high heaven,
with abused or absent heel restraints. Certain makes of shoe IMHO are
sold on style rather than function as few rowers have runners' feet and
many match Zeke's foot description. And they were first used (& for
well over 10 years thereafter) with not the slightest consideration of
safety & with nothing done to analyse the problems or make them safer.
Often they were installed out of self-deluding fashion consciousness.
Frequently, after heel restraints became common, they were incorrectly
installed, absent or plain messed up. Dead rowers give a new meaning to
the term "fashion victim".
Similarly, clogs of the old type did not work well for everyone. As in
how we tell folk to row, one limited & inflexible design cannot work
well for everyone - although clogs had very few of the disadvantages of
shoes, weighed less & lasted indefinitely. What was wrong with clogs
was that they were insufficiently adaptable. Almost universally they
were not adjustable for height, rake or splay, which was bound to leave
some users short-changed. But these were design limitations from
another era which could have been resolved but for the Gadarene rush
into shoes, then always fitted without heel restraints.
I wouldn't expect Zeke to fit into a "standard clog" any more than I'd
expect him to wear a standard size or shape of trousers or shirt. I
have real problems with buying shoes, because I've managed to retain
straight toes on rather square feet, including a big toe which does not
bend inwards to accommodate the almost invariable pointing of the normal
shoe's toe-box. I find most shoes excruciatingly uncomfortable & (as
those who know me will attest) have never been one to sacrifice comfort
for style, but the world at large simply goes with fashion and pays the
price of bunions in later life.
What I'd like to think is that we can preserve the obvious merits of the
standard clog while incorporating within it the necessary adjustability
to make even Zeke comfortable.
None of which excuses the plain stupidity of absent or incorrectly
installed heel restraints. Nor the folly of those at British rowing
whose confusing advice leads to the most dangerous of solutions - a
safety device which simply cannot work.
Cheers -
You may recall an innocent young girl asking a youthful suitor:”
"What's in a name? That which we call a rose
By any other name would smell as sweet."
But heel restraints!
Our two young lovers learned a very bitter lesson, didn’t they? They
found out soon enough what’s in a name. In Montague and Capulet never
the twain shall meet. Sadly there was more in a name than they ever
guessed. And I wonder. Is this what we, too, are finding out?
Heel restraints! Could any name be more misleading? More wrong? More
untruthful?
Ask yourself what is the function of these short cords that connect
the heels of the shoes to the stretcher?
Is their function to restrain the heel in the event of capsizing?
Or is it to release the heel?
The phrase “heel restraints” denotes purpose precisely opposite its
intended function.
These two short cords don’t restrain the heels in the event of
capsizing. They release the heels. And for this reason don’t they
deserve a proper name that denotes their true function? Certainly they
deserve almost any name but “heel restraints!”
“Heel releases” would do quite nicely. “Heel safety releases” would do
even better.
And maybe with a new name we wouldn’t see such folly as you have
described.
Warmest regards,
Charles
I meant to write: "The phrase “heel restraints” denotes purpose
precisely opposite its intended function. Is it any wonder their
function is so misunderstood?"
Clogs are fine, but they are not a system that would be favoured by
top-end racers so are unlikely to be popular among rowers all trying
so hard to better themselves.
Shimano have designed a system (http://www.rowingillustrated.com/
boards/viewtopic.php?f=10&t=1684), but it still looks a little over-
complicated for general club use. Some testers have mentioned a
different 'feel' or balance point. It looks a little complex and over-
engineered, but it also looks safe. Maybe something like this will the
way forward once it has been through a few revisions?
Anatole
Anatole, beware needless complexity. It's like building a vast tunnel
down the Thames at mind-boggling cost to store human effluent, instead
of separating the crap & the water closer to the source, on a smaller,
more distributed scale & at lower overall cost. But bureaucrats love
complexity...
Shimano's system does work. So did Krew-Klips. I know this because
I've tested both. Both are based on standard cycle pedal clips. Both
require you to be a wearer of cycling shoes. The clips in Shimano's
system do not, for some reason, fit their SPD bike pedals. Both systems
are quite heavy.
All of which - including the switch from clogs to shoes - tells us more
about our obsession with complex technological solutions to simple
problems. This is neatly summed up by the apocryphal story of the NASA
ball-point pen. Zillions were spent by NASA to develop a pen which
would write under zero gravity; the Russians used pencils.
For nearly all rowers there was absolutely no problem with clogs. But
clogs were unexciting. A few rowers found clogs uncomfortable, for
perfectly good reasons which in the main were to do with them being set
conventionally at ~45 degrees to the horizontal. There were no builders
at that time prepared to make effective rake & height adjustable clogs.
So word got about that shoes (but still on fixed-rake boards, please
note) were the answer to the maiden's prayer. Track shoes, & sometimes
even much cruder tennis shoes, started being fitted, at first by
individuals in singles.
Which is where it started going badly wrong.
Rowing does not just under-report serious & fatal accidents. It
actively shuns & censors them. Don't ask me why decent humans act thus,
but we have seen that they do - & do so repeatedly. Especially where
there is no intra-sport reporting system. But even then they do.
So accidents happened. A few scullers died, trapped by their shoes.
But almost no one talked about it, or thought about it, or - incredibly
to me - even cared about it. The deaths of these crash-test dummies
were simply ignored (now wait for some fool to go all PC on me for
referring to dead scullers in that way....) or brushed under the
capacious official carpets.
I hardly know about it myself, until I started to dig. But one day
someone came in to order a boat & explained how he'd been trapped under
his wrecked single after being run down by a river launch. Built like
an ox, he ripped his stretcher apart in his panic & that's why he was
there for a new boat. I decided that neither he, nor I hoped anyone
else, should face this fate. And shoe-heel restraint cords were born
that day (is that better, Charles?).
But rowing is slow to learn. Ever more track shoes were fitted - as the
solution to a largely non-existent problem. So more rowers died, or had
very nasty accidents. And, rather than do the dead simple, passive
foot-release thing they saw in our boats, folk sought technological
complexity. Such as the ski-binding system, which held you firmly until
you curled up to press the release tab "Painted red so you can see it
underwater". Has anyone considered how hard it might be, having been
breathing hard & now upside down with lungs filling with water & in
growing panic, to look for & reach, in murky water & bad light, a red
button above your toe? or even to undo 3 Velcro straps when people have
already drowned because they couldn't get to undo a simple tied shoelace
in those circumstances. And never mind the bizarre thought of any of
the many with red/green colour blindness seeking a red button?
Then FISA, happily, woke up & mandated what I termed heel restraints.
Goody! Except that no one checked them, no one understood the settings
under which they would be sure to work, & people in official hats (&
rowers with brains in neutral, simply assumed that any old length of any
old stringy stuff was OK. Anyway, it never happens, they said.
And that's how we get to this week, when a young sculler nearly drowned
because his heel restraints allowed the 12cm of lift which British
Rowing's ludicrous safety document says is OK.
There are many ways in which to commit a murder.
Deliberate disinformation is the method most favoured by those in
official ties & blazers. Who are the same people who still tell
capsized scullers to swim to the unsupportive bow of their boat, i.e. as
far from the centre of buoyancy of their boat as it is possible to go.
And when that unsupported sculler drowns, in his last desperate struggle
in icy water to reach the bank, they publish on their official website a
blatant lie which blames him for causing his own death. Then they
privately agree to limit the amount of information put before the Coroner.
And such people still hold high office within British Rowing. Which is
why Rowsafe, BR's safety document, still contains such dangerous
garbage. And why its authors choose to lift & then complicate &
adulterate the sound safety advice of experts to whom they refuse to talk.
What is wrong with applying honesty & simple solutions to rowing safety?
With our shoes we give out (two) sets of heel restraints which are
made from rock climbing accessory cord and the advantage we believe
that material has over Nylon cord is that the knot stays tight without
being melted, which is what Carl rightly recommends with Nylon. As our
shoes adjust in size this just saves effort but with normal shoes a
melted knot makes shoes quite hard to swap.
On clogs, personally I never found them that comfortable and we
sometimes refer to our shoes as 'modern day clogs', which may explain
why they are becoming quite popular.
On clip in shoes, this has come and gone several times (Vespoli,
Krewclips and now Shimano and 2 or 3 others). The problem is that it
only makes sense if you convert the whole boat fleet in a club and a
cost of £70+ per seat that is never going to happen. If it did take
off you would also get the issue of having different systems in
different clubs and of making beginners buy shoes on day one, so
probably not a practical answer.
Active Tools Ltd.
Tel: +44 (0)1494 512487
I've been aware of most of the truth behind this urban myth for a long
time, but here's an interesting additional story
http://www.esa.int/esaCP/SEM9YN7O0MD_index_0.html
"Seeing my astonishment, he told me the Russians have always used
ballpoint pens in space."
Casting some light on this is an anonymous posting some way down the
following page:
http://tinyurl.com/6bet5zl
as follows:
"If only the ARA had used the release of the new RowSafe document to
update the heel restraint rules in line with FISA's recommendations
(i.e. 5cm heel lift). The current rule is so sloppy that people can
present any old sh*t and try to get it passed, whereas 5cm requires you
to make some attempt to do it properly."
Does this suggest that Gary Harris was pulling yet another fast one by
advocating that FISA adopt the devious & deadly ARA heel "safety" rules?
Why do we not know in exact detail what were these views on heel
restraint that were being put to FISA at that time? Is rowing safety
not something fit to be openly discussed?
But note: this Harris is the same arrogant & conniving fool who told 2
Coroners he & the ARA (are they one & the same?) would ignore their
carefully considered safety advice after 2 UK rowers had needlessly died
(& both been falsely blamed by Harris & the ARA for causing their own
deaths).
That man is a stain on our sport.
This has been mentioned before, but I wonder whether the cleat part of
cycling shoes could be fitted to the bottom of a set of C2 shoe rests,
the sort they use on ergs? Quick-release, cheap to install and
maintain, use your own shoes.
On the issue of people being trapped in their shoes/clogs and
drowning, and of heel restraints in general, as a novice I hope you
will forgive me a couple of basic questions. I mean, really basic.
1) Why do our feet have to be restrained at all? We are not using the
shoes or velcro straps to pull the boat under us, are we? (Maybe we
are; I'm just not really aware of it.)
2) Why does a governing body care if one's heels come up? I'm being
taught not to pull them up much, if at all, because it is not the most
powerful drive technique to start pushing off one's toes.
In erg class we have been practicing erging without the straps, and to
me it doesn't seem much different. The seat moves forward by gravity,
the tracks being slightly elevated, no?
Thanks for any observations/corrections on the above.
Cheers,
Sandy
Sandy,
Boats and ergs are not the same. Ergs sit on the ground - some
"better" ones move back and forth under you or have moving bits that
move back and forth while the rails and other stuff stay in place, but
boats work differently.
You do actually pull the boat bow-ward with your feet during the
recovery. It doesn't take much force, so people (most people) think
that they are moving their bodies (each person only has one body...)
sternward on the slides. When you take your blade(s) out of the water
- if you sit at the release position with your blade(s) feathered and
don't do a recovery, the boat slows down - gradually - until you
stop. The resistance to your forward motion (toward the finish line
is forward in boating terms) comes almost entirely from the water, in
the form of various kinds of drag - the shape of the boat pushing
water out of the way, the movement of the boat through the water
making "drag" because of the surface of the boat passing through the
water, and the movement of the boat creating waves. If you disregard
wind (say it's a tailwind), the only resistance to motion is from
water.
Look outside the boat at the water going past your boat next time -
you'll probably see that when you're rowing, the boat (and you) are
still going toward the finish line during the recovery. Now - if
you're going toward the finish line, and the boat is going toward the
finish line, even though you're seeming to move sternward on the boat
- isn't it likely that the boat is moving past you/faster than you?
(it is - there are many places that you can check to see that the BOAT
moves fastest during the mid-recovery). Think for a moment - how can
the boat move faster during the recovery? Where are you attached to
the boat? Try to "wrench" the boat past you during the recovery with
your handle(s) - defeats the "relaxed grip during the recovery" we
tend to coach. Try to "roll down the sloped slides" - but the slope
in the slides is only enough to counter the pitching that happens to
the boat when you move your body mass to the bow during the drive.
Try to take your feet out of the stretcher and NOT use the heel cups
to pull your boat forward under you - not possible. Try with 'feet
out' to feel how the recovery is only possible by a light pulling
pressure with your feet in the heel cups.
Yes, you do pull the boat under you with your feet, so you do need to
be attached to the boat.
where there are shoes in the boat, you need SOME heel-lift, or your
heels will lift out of the shoes every stroke - and you may not get
back into them properly for the next drive, so the heels are "allowed"
to rise from the stretcher - if you're flexible, they don't come up
very much. If your stretcher is too steep and you're not flexible,
you'll have a lot of trouble. So - the heels are allowed to come up.
If you flip over, and you've been rowing very hard, it's not at all
easy to hold your breath, tuck up under the boat, and push your shoes
off your feet, so there has to be some system to ensure that your feet
will come out of the shoes - because of the hard rowing and (in cold
water) a "gasp" reflex that essentially fills your lungs with H2O and
other pollutants, so you only tie your shoes tight enough to stay in
them for rowing, and you make darned sure that the heels of your shoes
will be restrained fairly close to the foot plate, so that when you're
upside down in the water, your feet will easily come out of the
heels...
I can't speak for british rule makers.
Banged out in a hurry - no proof reading done...
W
I never do my shoes up - and my 'heel release mechanism' is set to
about an inch.... never needed any more than that.
Phil.
If you glued the sole of your shoe to the floor, put your foot into it
and then tried to pull your foot free, then if the shoe was a reasonable
fit you would not be able to do this without intervening by hand or
holding down the heel with your other foot. As you try to lift your
foot, the shoe's heel remains encasing your heel bone (calcaneus) &
however hard you try to pull on your foot, it hangs on.
If you want to get out of a shoe in a hurry, you will simply hold down
the heel with your other foot. That is the principle of the heel
restraint - a truly passive form of foot release
The shoe heel is an excellent device, designed expressly to prevent your
heel from lifting or sliding out spontaneously. And to row you do need
that heel, or your feet would fall straight out. When rowers use shoes
they are screwed under the ball of the foot to the stretcher. If the
shoe heel is free to lift without limit (no heel restraint) then the
rower has no means of escape unless, in the aftermath of any accident,
they can reach down & extract each heel in turn. Otherwise they will
remain trapped until rescued, or they will drown.
The heel cord or heel restraint, whatever we choose to call it, allows a
useful degree of movement of the shoes' heels before preventing the heel
from following your foot all the way up from the stretcher. Otherwise
the shoe would certainly trap your foot in the boat as the further a
shoe curls up in this process the tighter it holds the foot.
That's the reasoning behind the heel restraint. It works, & it's one of
the very few "just do it" elements in rowing. Everything else is to
some degree optional, but if you use rowing shoes, as described above,
then only a fool or someone sadly misinformed or ignorant would not have
strong, well set-up heel restraints. But there is huge ignorance across
our sport - just one instance of which became the starting point for
this thread.
HTH?
Sandy
Sandy -
Rowing with feet out does work - but only as an exercise. You can't do
it when rowing full pressure, full length or at higher ratings. And no
one wins races rowing feet out.
Feet out is an artificial trick which carries performance penalties. It
is only possible because when you do it you keep (& have to keep) enough
downforce on your feet to prevent your heels from lifting out of the
heelcups. To do this you shorten your finish & layback to keep your
weight distribution that way, otherwise you'd roll over backwards at the
finish as everyone else ROTFLAO.
Provided the down-force on your heels matches or exceeds the pull
required to drag you back towards front-stops, then since the heel-trap
angle in a fixed stretcher is about 45 deg, & steeper by a fair bit in
shoes with or without lifting heels, your heels will not lift out. At a
low rate that will mean <7-8kg (<4kg/9lb force per foot) & probably a
lot less. And that's how & why feet-out "works".
Cheers -
Probably me. The 7cm proposal was put forward by the DEN, FIN, NOR and
SWE federations to the extraordinary rule change congress in 2009.
FISA council suggested 5cm instead. The Nordic prposal was withdrawn
and the FISA wording accepted but with 7cm as the limit rather than
5cm. There were then IIRC discussions between FISA and the ARA.
The ARA Council before this congress reported "It was agreed that we
should adopt the FISA heel measurement (either 5cm or 7cm) and that
this should be discussed and agreed with the Umpires Commission whose
umpires would be administering the checking at Control Commission."
The ARA council subsequent to this congress reported "The Chairman had
met with the NUC who had debated the recommendation from FISA
regarding heel restraint heights. The problem however was in defining
an appropriate measuring process given the numerous types of
footplate. At the FISA Congress however no decision had been taken
because of the problems surrounding the actual measuring process. The
next FISA meeting would follow up this and a decision made."
At the September 2009 ARA Council was reported [N.B. the Congress
referred to here is the ordinary annual one] "the present ARA position
on heel restraints is recommended. It was agreed that further
education was needed regarding the maintenance and height of heel
restraints.
In November 2009 this "The British position had been put to the FISA
Congress i.e. that Control Commission accept heel restraints up to
level with the fixed point of the shoe and that bow balls should
protect the forward point of the
bow. FISA were presently accepting a height of 7cm, but the practice
of measuring was presenting problems and different interpretations
were being applied... Heel restraints should emphasize their
effectiveness when much shorter
than required at Control Commission"
So as you can see much toing-and-froing from the original proposals.
As my index finger is exactly 7cm long I have no problems in measuring
it at international regattas.
While the notion of a universal clog is a good idea, for God's sake,
do not install Concept 2 plastic stretchers! They are designed to hold
onto the heel of a shoe, the sole of which fits into a notch in the
heel of the stretcher. Therefore, they are sometimes tricky to extract
oneself from on the erg, let along upside down in cold water. Even a
heel strap will not ensure you will get out, yet I have seen them
installed in a few training boats in the states.
And do not use track shoes. Rowing shoes, with velcro and a looped
string instead of laces, allow the rower the loosen things with a
quick tug to the top of the shoe.
After an incident in cold water here a year ago, I am in agreement
that the 3" lift that USRowing officials check for upon the launching
of shells at regattas is still too long. 2" (5cm) is better. We had an
8 slam on the brakes and go over and bow, whose strap was 3" long
broke the phenolic shoe plate (another good idea vs aluminum) to get
out. It took him about 5 seconds to get his head up, but that was too
long for me. Part of the reason is that the soft-soled rowing shoes
twist, especially when the rower is laboring to get himself up and
sideways to the surface. Not enough tension is put on the heel to get
the foot out.
JD
What a mess these pompous, ignorant people have created. One cannot
rationalise what they might wrongly term their "logic".
At present, BR's Rowsafe gives completely contradictory advice: either
the heel may rise to the level of the lower fixing bolt (the position of
which they presumably believe to be a God-given value??); or it may rise
7cm from the stretcher. Well, boys & girls, which is it to be?
And they claim (on what grounds?) that it is hard to measure a rise of
5cm, so they want it no less than 7cm. If they can't measure 5cm, how
do they measure 7 cm? Indeed, how do they even measure "level with the
bottom fixing bolts"? Any fool can make a very simple block or stick as
a go/no-go gauge for a 5cm heel rise - cut it to size, shove it under
the shoe heel &, if it is sloppy, shorten the heel restraint until there
is a good fit. So why didn't these extraordinarily inept folk bother to
ask anyone or, better still, why didn't they ask me, who originated the
heel tie for safe, passive foot release.
At least they are consistent. They refused, point blank, ever to
discuss shell flotation with anyone competent in that matter. And they
refuse to talk to anyone competent on heel restraints. As a direct
result they make dangerous idiots of themselves, yet again.
So, British Rowing, how is it "difficult" for any lay person to measure
the exact distance between a shoe heel & where that heel hits the
stretcher? A blind man could do it, & a sighted fool could also do it,
but members of ARA Council can't do it! What, then, is their problem -
& doesn't this disqualify these ludicrous folk from their self-appointed
safety roles, just as uncorrected defective vision disqualifies them
from driving?
But this is the same bunch of wallies who told FISA it didn't understand
shell flotation, now trying to persuade FISA that heel restraints are a)
hard to measure & b) ought to be an imprecise length which is harder to
measure & utterly dangerous to life in an accident.
And then, if I read aright, they go on to say:
"Heel restraints should emphasize their effectiveness when much shorter
than required at Control Commission"
What exactly does that particularly daft sentence mean?
What a disastrous way to run rowing safety.
I've another driving force - embarrassment. I'm a British-Rowing-
licensed umpire, probably [the powers that be in the land have been
sitting on my renewal application for some months now, so my licence
may be about to go pearshape, or this might just be wholly
uncharacteristic inefficiency]. Or as some would say, a blazerato -
yes I do it in a blazer and tie; I think uniform can be quite helpful.
Personally, when I'm out there being harangued by a school coach,
usually in front of his young charges, I'd love to be able to apply,
and justify .....
- 1] a standard for hull buoyancy which does NOT vary depending on
whether or not the boat was built with buoyancy compartments [and yes,
as treasurer of a small club, I have pressed and paid for the
"retrofitting" of an VIII]
Would a "plate" be good enough, failing that, the presence in an VIII
or a IV of buoyancy compartments all in sound condition?
[to boggle the minds of readers outside England and Wales, we are
charged to check "the integrity of any buoyancy compartments", with an
inference that you can't check what isn't there; you may feel that the
status of nine 16-year-olds in an octuple sculler, going on to a
multilane course in dirty weather, in the school's oldest boat,
without buoyancy compartments, and far too old for a plate, is to say
the least interesting ..... and it has happened to me]
- 2] a objective measurable standard for the range of heel movement of
shoes.
If the Sport were to say "five centimetres max between end of heel and
base plate", I will undertake to check whether the tie is sound - not
so long ago, the coach of a junior double accused me of pulling so
hard that I lifted the boat; how hard does he think the young woman
would struggle under water? - I will judge the distance by eye, I'll
probably be too lenient up to 5.5cm, and I'll carry a Five Centimetre
Thing in my pocket for the Really Hard Cases.
Or the Sport might on thorough consideration - eg expert evidence from
competitors and their coaches that more than 5cm is REALLY
necessary????? - specify another measurable standard.
The "lowest fixed point" is harder to define and discuss in the
boating area, particularly for those of us who believe it's quite
unnecessary for human rowers, and FAR too sloppy to save lives.
JD has reminded us that VIIIs do turn over. I wonder how long it would
take the master of the vessel - or the adult in charge of a junior
crew - to count the heads in the water, to be satisfied that no-one
was still out of sight wrestling with a shoe?
It's all been said before, also that competitive events have organised
safety cover. What was the condition of that boat last Thursday
evening, alone on a river somewhere?
Taking the history, and the personalities, and the feelings out of it,
is there good objective reason NOT to agree a 5 cm rule? Can we hear
from the other side?
Richard du P
Haven't you just blown your chances of licence renewal, Richard, by
daring to question to wisdom of your lords & masters? I doubt they'll
even bother to send you off to a collective for re-education.
>
> - 1] a standard for hull buoyancy which does NOT vary depending on
> whether or not the boat was built with buoyancy compartments [and yes,
> as treasurer of a small club, I have pressed and paid for the
> "retrofitting" of an VIII]
But who measured & quantified the flotation performance of that boat?
My experience tells me that, with one exception, those who have offered
such services would be unable to compute or validate this. Something
about having the right qualifications for the job.
> Would a "plate" be good enough, failing that, the presence in an VIII
> or a IV of buoyancy compartments all in sound condition?
A "plate"? Would that be a very large, low-density plate, set low in
the boat & displacing a few 100 kilograms? I'd like to see one of those.
> [to boggle the minds of readers outside England and Wales, we are
> charged to check "the integrity of any buoyancy compartments", with an
> inference that you can't check what isn't there; you may feel that the
> status of nine 16-year-olds in an octuple sculler, going on to a
> multilane course in dirty weather, in the school's oldest boat,
> without buoyancy compartments, and far too old for a plate, is to say
> the least interesting ..... and it has happened to me]
Back to the business of appropriate qualifications, then. I'm a
chartered engineer, & probably not too inept at pipe-fitting either, but
by law I'm not allowed to connect up a gas pipe in my own home - I have
to engage a gas-fitter. There are trailer towing tests. Coaches now
have to be expensively trained, yet still we get too many lasting
injuries of young people under instruction. Umpires are examined before
being let loose with bell, book, blazer, tie & flags. Yet it's
considered OK for someone with zero relevant experience, & maybe even a
few wholly misguided opinions which ought never to be allowed loose
outside the club bar, to self-certify a 60ft craft (which might be a
decaying old hulk) to carry 9 young lives across choppy water?
>
> - 2] a objective measurable standard for the range of heel movement of
> shoes.
> If the Sport were to say "five centimetres max between end of heel and
> base plate", I will undertake to check whether the tie is sound - not
> so long ago, the coach of a junior double accused me of pulling so
> hard that I lifted the boat; how hard does he think the young woman
> would struggle under water? - I will judge the distance by eye, I'll
> probably be too lenient up to 5.5cm, and I'll carry a Five Centimetre
> Thing in my pocket for the Really Hard Cases.
>
> Or the Sport might on thorough consideration - eg expert evidence from
> competitors and their coaches that more than 5cm is REALLY
> necessary????? - specify another measurable standard.
Whence cometh the expertise, & the evidence? Who judges the judges?
How to weed out the "experts" who think that next-to-no restraint will
do fine? And what about the craven compromisers, those who will always
settle for the curate's egg but somehow want to be in on the
decision-making?
> The "lowest fixed point" is harder to define and discuss in the
> boating area, particularly for those of us who believe it's quite
> unnecessary for human rowers, and FAR too sloppy to save lives.
Amen to that.
>
> JD has reminded us that VIIIs do turn over. I wonder how long it would
> take the master of the vessel - or the adult in charge of a junior
> crew - to count the heads in the water, to be satisfied that no-one
> was still out of sight wrestling with a shoe?
They also sink, & such sinkings have killed quite a number of rowers.
>
> It's all been said before, also that competitive events have organised
> safety cover. What was the condition of that boat last Thursday
> evening, alone on a river somewhere?
Organised safety cover should not be there to pluck kids out of inverted
boats under which they're trapped by defective or missing heel
restraints. A well-run event has rescuers to deal with genuine
accidents, not to save rowers & clubs from the consequence of their
using fundamentally unsafe equipment. No rower should _ever_ be in
danger of becoming trapped in an inverted boat - period.
>
> Taking the history, and the personalities, and the feelings out of it,
> is there good objective reason NOT to agree a 5 cm rule? Can we hear
> from the other side?
>
> Richard du P
Yes, that would be good. I really would welcome that. But I fear it'll
be a very long wait.
Cheers -
Richard if you're waiting for the yellow card then you'll wait in vain
as they have been discontinued.
I think the fear (rather than any actuality) of litigation makes
people loathe to set limits. You let a boat on the water and after the
body is discovered and the boat recovered the heel restraint is found
to be 7.2cm against the limit of 7cm and you let it through... Apart
from that I cannot see what would stop BR setting a limit and I hope
that when RowSafe is revised it will have a limit.
With regards to non-buoyant boats I find someone repsonsible for the
crew remind them the boat will sink if filled with water and get them
to confirm if they are happy to go out in it in the conditions
prevailing. Conditions of course change though.
Chris -
"De minimis non curat lex". The law is not concerned with trifles. No
one will get banged up for that kind of oversight.
The point about a safety standard is to set the target not right at the
edge of workability - that would be dangerous folly. If a 7.2cm heel
lift proves fatal on one occasion, then 7cm is too long for everyone.
Set the target length that is a safe margin within the apparent longest
length that works reliably. That allows for stretch & human error.
Which is precisely why 7cm is dangerously long, & "heel to level of
lowest fixing bolt" is sheer madness.
Informed consent to use unsafe equipment may be OK for an individual on
his/her own, but the law will not condone it in a situation, such as a
crew, in which the weaker members are vulnerable to peer-group pressure
to row when their better judgement tells them not to use that boat. In
the choice between getting dropped from the crew & taking "a bit of a
chance", you know exactly which way most of us will go - out onto the water.
I think your post neatly defines the ill-informed & frankly dishonest
attitudes that guide BR on rowing safety. The hysterical hiding behind
"the law" as reason for doing nothing or worse than nothing simply will
not work, but it will injure & kill.
carl
Many crews will have clocked up over 200 hours of rowing training
before they arrive at their first regatta of the season.
Yes umpires can check boats and stop those that do not meet the
required standard from racing.
Yes it would be useful if there was a clear benchmark and a tool for
measuring it.
Surely the period of highest risk is not at a regatta, that has a well
organised safety plan, but during those long and lonely winter
outings, when the wind, rain and snow is beating down.
Like most officials and coaches within our sport, I am not paid to get
cold and wet on a river bank. I do it because, having reached my sell
by date as an athlete, I want to remain actively involved and put
something back into the sport. The rules, codes of practice and other
regulations need to be worded and set out in such a manner as to
encourage volunteers.
If we are loaded up with too much red tape , we will retreat to the
golf course or some other activity.
Golf!? A good walk spoiled. Pah!
OK. Would folk out there like us to make them a neat heel height gauge?
Please let me know and we will make a few at a price easily affordable
to impoverished clubs & coaches.
The last thing any of us wants is to overburden those who give too
freely of their time to make competitions run smoothly & fairly.
Instead of bowing to BR's wet & delinquent excuses for inaction &
confusion, let's get heads together to see what would make life easier
for those charged with checking equipment & safer for its users.
I think we need to formulate simple, unambiguous tests & testing kit for
heel safety. That might remove the potential for sheer unpleasantness
to which RduP made passing mention. How simple it could be: "These are
the standards, this is the agreed kit, that is the result, now please go
& put it right &, BTW, the regatta committee will be happy to sell you
the necessary bits of cord, & lend you a gas lighter & one of Carl's
height gauges (on payment of a deposit), with which to set the height &
weld the knot which sets the length of the heel restraints.
Isn't that what reasonable folk would do?
So, we are willing to apply ourselves to such problems but it is up to
those needing this sort of help to get in touch and tell us what they
want. No point in making mouse-traps if the home owners don't find
rodent infestation a problem.
Cheers -
Carl
But I remain amazed that no 'minimalist' solution can be found that
would be an improvement on cheap shoes that fall to bits in days in a
club environment. Maybe the solution is staring us in the face -
anyone for new "super pro tec-clogs"?
Anatole
We have mice - big time and I would welcome an easy way to assess heel
restraint distance ..... even though I set my own I would find it
useful.
As club CWSA (following on from Anatole's hard work) I am amazed how
disinterested boat users - rowers, launch drivers etc are in some
basic safety stuff, heel restraints, kill cords, pfc's as if it will
not happen to them. Watching people make judgements about weather/
water conditions is illuminating as everything is about getting an
outing, and nothing about the safety of the outing, or even the
quality of the water for that outing.
This is especially bad on the Tideway where the conditions are often
bad, and we 'pride' (?) ourselves on challenging them!
So if someone can come up with a simple pass/fail mechanism I would
happily spend a few weekends at the launching of our crew boats to do
a spot umpire job on boats leaving the compound ....... if it can be
linked to a loud claxon all the better!
James
Apologies, I didn't make it clear but I was trying to suggest
attaching them to the bottom of the whole assembly, so the flexible
shoe holder + the underlying mount all comes away in the event of a
capsize. It may well be that the C2 version is not suitable for this
without modification anyway, but the principle (one's own shoes
attached to a mounting which comes away under tension) is worth
investigating IMHO.
I have the answer - velcro 'cramp-ons' for one's own trainers and
velcro pads on the stretchers! No more shoes in boats.
Phil.
They don't fear it, Chris. They use it as a facile excuse for not doing
the job right. And this applies from the very top down.
Only the inept, the self-deluding & the irresponsible seek out worthless
excuses for not doing the safety job properly. In industry a similar
disregard for & negligence in the regulation & application of safety
procedures can bring criminal prosecution. Why not in an organised
sport with an admitted duty of care?
When something goes wrong, as it could have done for the club whose
young member so nearly drowned through grossly over-long heel
restraints, it is too late to complain "no one told us", or that you
didn't understand the law. Ignorance of that kind is not excused.
You are a member of BR's Council & a regular on RSR. I know that a
number of Council members are RSR lurkers. So you & they are well
informed on the need for effective heel restraint rules. BR's executive
operates under the oversight & governance of Council. So how did BR end
up generating the gobbledegook on heel restraints which led to a
youngster sculling with 12cm of heel lift & nearly losing his life as a
direct result? Does no one on Council dare to offend the Exec? Are
they all, as with certain other institutions with similar constitutional
arrangements, flattered to be on Council & thus feel the need to bend to
the will, however mad, of the self-perpetuating Exec?
Carl
> Taking the history, and the personalities, and the feelings out of it,
> is there good objective reason NOT to agree a 5 cm rule? Can we hear
> from the other side?
Our club safety card clearly says 5cm. We can protect our own, even if
all the others have a death wish.
--
Henry Law Manchester, England
Perhaps I missed something; if so, none of the UK contributors here
put me straight!
I've received today, from "British" Rowing, the Umpires' handbook
2011.
Wrapped round it is an A4 landscaped sheet on Heel Restraints,
apparently "Issued: Nov 2010 - V1
Am I alone, in being totally ignorant of this these last five months?
I'll leave those better qualified to pick at the specification for the
double length of 3mm marine cord, breaking load 400kg, secured ring on
shoe, close-fitting hole in the stretcher board, overhand knot, ends
flamed off ..... but it does give me that déjà vu feeling!
The only two points I'm not entirely comfortable with are
a] an explicit recommendation "to repair worn-out or broken heel
restraints with identical [or manufacturer-approved] materials. ....
When this is not possible ....." guidance follows for the marine cord.
I'm not sure this is good enough for all "worn-out" structures? For
instance, I think there are still English boats with those perforated
leather straps, secured to the underside of the stretcher? Should we
understand that they are seen as Good Design?
b] Fixing instruction 5 reads in entirety .....
'The position of the knot should conform with the British Rowing Rules
of Racing - "the heel shall not be able to rise above the lower fixing
point of the shoe". A good setting is to allow no more than 50mm
clearance between the stretcher and the sole at the heel.'
Amen I say, to the second half of that ..... but is there really
entrenched opposition to bringing the Rule in line with the
Instruction?
Tell me if I'm boring you
Richard du P
Tedious, but not really boring.
A further repeat demo of the incoherence & ineptitude of British
Rowing's safety management. Ridiculously detailed specifications mixed
with completely laissez faire "Well, try this or, tell you what, just
make up your own mind & bodge it".
It's a mess. They just don't understand safety, do they?
Safety regulation absolutely demands simplicity & clarity, coupled with
intelligent explanations of _why_ you do & don't do certain things, plus
defined boundaries for what is, & what is not, acceptable. Whoever
wrote that lot is an inept fool. Worse still, what they have written
could kill.
What about accident reporting & database visibility?
Not every rower is a Chemical Engineer (I still am) so they won't see
the April issue of "The Chemical Engineer" magazine which focusses on
health & safety. That's a pity.
On the cover is the strap-line "Lessons learned, not lessons lost",
which is pretty much the inverse of what present BR safety management
achieves. Inside there are a number of relevant articles, including a
short one by Trevor Kletz, who years ago single-handedly started an
industry-wide H&S cooperation which was so effective in reducing its
accidents.
One among many sets of vital points which Kletz makes is:
1. Moral: If we have information that might prevent another accident,
we have a duty to pass it on
2. Pragmatic: If we tell others about our accidents, they may tell us
about theirs
3. Economic: We would like our competitors to spend as much as we do
on safety
4. The industry [for which we can read sport] is one: Every accident
affects its reputation & may lead to greater regulation.
The same issue carries an account of the official investigation & report
into the massive Buncefield fuel storage depot explosion & fire in 2005
(UK readers may remember this - causing the biggest seismic shock in S.
England for many a year). The report underlines the ineptitude of
overall safety management, the lack of coherent safety policies, even
between individual work shifts, & the lousy maintenance - all seemingly
based on the assumption that the worst could never happen. It talks of
the Swiss Cheese approach, where all it takes is for something to go
horribly wrong is for all the holes to line up.
Safety should only be managed by people who understand what safety
management entails. British Rowing thinks & acts otherwise, acting as
if smoke & mirrors will do just as well.
I quote from British Rai...sorry British Rowing's ' Plus+ Heel
Restraints - Fixing point 3 & 4'
3. Both ends of the cord to pass through a close fitting hole in the
stretcher board that is sufficiently far away from the edge as to be
fit for purpose.
4.The two protruding ends to be tied as one piece in an 'overhand'
knot (see Diagram)
The knot must be large enough not to pass back through the hole in the
stretcher'
So the NGB [?Not Good Blokes?] are advising users to rely on a SINGLE
knot in some marine cord NOT to pull through a hole when it is under
stress.
On day one, when the stretcher is new and dry and hole nice and tight,
perhaps; but two years down the line when the hole in some soggy
marine ply has become worn and enlarged?
I dont think so.
What about passing ONE end of cord through the hole, which is of
course "sufficiently far away from the edge as to be fit for purpose"
and AROUND the edge of the stretcher and then gather in the other end
of the cord and tie the overhand knot?
No way that would 'pass back' !!
Sorry about the caps chaps - not really shouting.
And have you seen the section on Heel Restraint Material??
We cant get competitors to read [ & if they do to understand] Regatta
Instructions let alone the bits about 'UV degeneration' and '400kg
cord that has degraded by UV/abrasion to 50% in three years (200kg)
with a 50% saftey factor'
The degradation specification is a little odd - last time I looked in
B&Q they sold perfectly good cord but didn't specify UV performance.
The best you get is "UV resistant". More confusing than helpful.
They seem to have their safety factors and margins all confused - IIRC
the specified safety factor of 50% means that the cord would fail at
50% of design loading. With the figures they give: design load = 100
kg, breaking load = 200 kg, margin = (200-100)/100=100%, safety factor
= 200/100=2. Whatever the terminology, 50% doesn't come into it unless
you turn it all upside down. Proper terminology should be used
properly.
There are plenty of scenarios where a two-teir safety requirement
(must do at least this, should do at least that) is OK, but I don't
think guidance to laypersons is one of them. If this was made simpler,
it would be a good guidance note.
Rob.
> And have you seen the section on Heel Restraint Material??
> We cant get competitors to read [& if they do to understand] Regatta
> Instructions let alone the bits about 'UV degeneration' and '400kg
> cord
But surely you realise that the point of these documents is _not_ to
inform; it is to establish a defensible position on the part of the
issuing authority. (It's not just BR who do this, it must be said: it's
part of the public face of corporate culture.)
"We told you, so we are not to blame if you didn't do what we said - to
the letter and to the last decimal point of the UV resistance and
breaking strain."
The fact that it's impossible to comply with these requirements, either
because you can't understand them or because normal shopping mortals
can't obtain heel restraint cord made of pure unobtainium, is immaterial.
I might say, though, that having BR issue specifications of what to do
and what to use is actually an improvement, leave aside the objections
to how they've done it. So much of "RowSafe" is even more defensive,
consisting of diktats on what to achieve without any assistance whatever
in achieving it.
On another point, don't all knots reduce (sometimes by as much as
half) the strength of the rope in which they are tied? Is this taken
into account in BR's calculations?
Anthony
Anthony,
"Isn't a figure of eight knot superior as a stopper to an overhand
knot?" - yes
'And a double figure of eight knot can be used if an even larger knot
is required' - yes again
'don't all knots reduce (sometimes by as much as
> half) the strength of the rope in which they are tied?' - in rope, and probably anything made from strands ?or filaments? Carl will know or find out :) yes, don't know about marine cord
I don't know exactly, but others do:
http://www.caves.org/section/vertical/nh/50/knotrope.html
Their tests look to be well done & thorough, & expose the yawning gap in
integrity between those who care about information which directly
affects human safety in a sport & the bunch that we have to deal with in
rowing.
This sort of information is one of many reasons why you need an ample
safety factor on cordage, just as you do an any safety-critical gear.
Since BR won't & can't do it, I'll try to answer factually some of the
obvious concerns:
1. The only safe way to release a rower from bolted-in shoes is by a
heel restraint cord. The proper way to implement that restraint, & why,
needs to be defined, understood & obeyed.
2. Bolted-in rowing shoes have cupped heels which snugly fit the
rower's own heel. All shoes are made thus to ensure that, by enclosing
the heel, they hold the foot under all circumstances.
3. This is good in normal use but a fatal hazard in an accident since
it holds the rower so effectively to the boat that only manual
intervention can free them.
4. In an accident the scope for timely intervention is limited & often
beyond the ability of the rower, even if still conscious.
5. That the shoe heel must follow the foot creates a further block to
spontaneous release in emergency. The more the heel rises, the greater
the curve in the shoe's sole. As the sole curves, the foot is driven up
into the toe-box. To see this process, rest the back of one hand into
the palm of the other, palms up, & then close the fingers & palm of the
lower hand. Since the bones can't compress or extend, as the lower hand
closes the fingers of the upper hand slide out past the heel of the
lower hand. The result, for foot in shoe, is the foot becoming more
tightly jammed within the shoe. It is a self-locking system, & the more
you pull the tighter it holds.
6. The safe release, therefore, must spontaneously free the lifting
heel before this self-entrapping process can dominate.
7. Tests confirm that up to 50mm of lift does not materially impair
release by a heel restraint cord, Tests also confirm that going much
further than this can completely prevent spontaneous release. That is
the rationale for the 50mm/2" lift limit.
8. There is no evidence to suggest that, with a properly set up foot
stretcher angle, any rower requires or uses more than this indicated
amount of heel lift.
Now let me how best to fix the cord:
1. I've always advocated using a doubled length (out-&-back) of 4mm
braided Nylon cord. This has ample breaking load, way beyond what's
needed. It is easily available, compact, compliant, easy to tie & seal
& very durable. All cordage loses strength with time, exposure, use &
other causes of wear & tear, but this cord works well & gives an ample
safety margin.
[I recommended & used this cord many years before BR invented its daft
advice to use cords made of Unicorn Hair or similar rare, costly,
unobtainable & possibly unsuitable material. BR has not tested what it
recommends. Interestingly, its has the same breaking strain as the
Nylon cord I recommend, but is more vulnerable to UV degradation. Hmmm.]
2. To what are you fixing the cord? Does the shoe have a really secure
loop, remotely able to take the breaking stress of the cord? And how
strong is the attachment point on the stretcher? The strength of a
chain cannot exceed that of its weakest link.
3. If the shoe's loop is inadequate, drill 2 holes >10mm apart up
through the heel & pass the restraint cord through them. If the
stretcher is obviously going to fail under rather small loads, replace
it now.
4. It is perfectly sound & safe to pass both ends of the cord down
through a drilled hole in the stretcher that's just large enough to
accept them, & then to tie the protruding ends as one in a single thumb
knot. Check that the knot allows only 50mm of heel rise. Now you must
heat-sear the outer end of that knot in a very small flame - to just
melt the outer nylon surface & let you weld the melted resin surfaces
under the pressure of a wetted piece of metal. The knot cannot then
untie itself. And it will be so big that there no way can it pass back
through that hole.
5. Finally, it is well worth bonding the cord & knot to the stretcher &
into the hole, so that it cannot keep sliding & chafing as you row.
If any one has questions on the above, I'm happy to answer.
Cheers -
Carl
--
Carl Douglas Racing Shells -
Fine Small-Boats/AeRoWing Low-drag Riggers/Advanced Accessories
Write: Harris Boatyard, Laleham Reach, Chertsey KT16 8RP, UK
Find: http://tinyurl.com/2tqujf