Honda's new website, prop pitch, WOT...
Raymond T. Lowe
But whats really interesting is their prop data on the 130's. Check out
the last 4 entries for the Kenner 21 and Godfrey-Hurricane where they
tested various props on the same boat.
http://www.honda-marine.com/hmframeset.htm
You may recall a previous thread on WOT's, both claimed and theoretical.
Heres further evidence to suggest that pitch is a bigger variable when
dealing with blade shapes a little more complex than a ceiling fan. That
1000-2000RPM result really raises an eyebrow.
http://www.honda-marine.com/106.htm
RT
--
*Remove "bogus" when replying by e-mail*
Harry Krause
Sorry. Variation such as that is NOT allowed, as it doesn't fit into the
formula of the posters here who believe such is simply NOT possible.
HONDA must be lying, right?
--
Harry Krause
------------
I just got my phone bill. Buy AT&T stock now!
Steven Shelikoff
>
> Honda finally revamped their previously lame website.
>
> http://www.honda-marine.com
>
> But whats really interesting is their prop data on the 130's. Check out
> the last 4 entries for the Kenner 21 and Godfrey-Hurricane where they
> tested various props on the same boat.
>
> http://www.honda-marine.com/hmframeset.htm
>
> You may recall a previous thread on WOT's, both claimed and theoretical.
> Heres further evidence to suggest that pitch is a bigger variable when
> dealing with blade shapes a little more complex than a ceiling fan. That
> 1000-2000RPM result really raises an eyebrow.
>
> http://www.honda-marine.com/106.htm
Do you know what the gear ratio is? From looking at the high speed
figures, it appears to be around 2:1. If so, then the props are going
well less than the TMS as slow speed, which makes sense.
Also, the test was done on Lake Lanier, which, as many regular posters
here know, has so many strange phenomenon as to invalidate the results.
Steve
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/ / /
\ \ \ mailto:shel...@averstar.com
/ / / http://www.averstar.com/customers/maritime.html
Raymond T. Lowe
The 130 has a 2:1 ratio. Invalidate the results? Doubtful. Same boat,
same engine, same day...
What I found most surprising was the differences between prop manu-
facturers throughout the rpm band. And if you look beyond just the
examples where the same boat was used, there are other large variances.
Harry Krause
Post enough variances and you will invalidate Steve...and we all know
how *he* reacts...67321 posts about twisty passages, all seemingly
alike.
--
Harry Krause
------------
He does the work of three men; Larry, Moe, and Curley!
Steven Shelikoff
>
> In article <38D63B82...@averstar.com>, shel...@averstar.com says...
> >
> >"Raymond T. Lowe" wrote:
> >>
> >> Honda finally revamped their previously lame website.
> >>
> >> http://www.honda-marine.com
> >>
> >> But whats really interesting is their prop data on the 130's. Check out
> >> the last 4 entries for the Kenner 21 and Godfrey-Hurricane where they
> >> tested various props on the same boat.
> >>
> >> http://www.honda-marine.com/hmframeset.htm
> >>
> >> You may recall a previous thread on WOT's, both claimed and theoretical.
> >> Heres further evidence to suggest that pitch is a bigger variable when
> >> dealing with blade shapes a little more complex than a ceiling fan. That
> >> 1000-2000RPM result really raises an eyebrow.
> >>
> >> http://www.honda-marine.com/106.htm
> >
> >Do you know what the gear ratio is? From looking at the high speed
> >figures, it appears to be around 2:1. If so, then the props are going
> >well less than the TMS as slow speed, which makes sense.
> >
> >Also, the test was done on Lake Lanier, which, as many regular posters
> >here know, has so many strange phenomenon as to invalidate the results.
> >
> >Steve
>
> The 130 has a 2:1 ratio. Invalidate the results? Doubtful. Same boat,
> same engine, same day...
The Lake Lanier thing was a joke.
> What I found most surprising was the differences between prop manu-
> facturers throughout the rpm band. And if you look beyond just the
> examples where the same boat was used, there are other large variances.
Surprising? I don't know. Different shaped props producing different
results doesn't surprise me. What also seemed logical is that there was
much more slip at slow speed then at high speed.
Steven Shelikoff
> Post enough variances and you will invalidate Steve...and we all know
> how *he* reacts...67321 posts about twisty passages, all seemingly
> alike.
Tsk, Tsk, Harry's still pissed
that his nickname
will remain
Charlie Brown.