J105 Polars
Brian Scarano
This forum is now closed. Please use the new Owners Forum. Open Forum entries (newest first): J-family...Having been lucky enough to race in J-fest against one tough grandpa, including his son, who is almost a pro and his grandson who is future fordeck material on THOR, Thanks. We have a fast class thatallows each of us to enjoy sailing/racing at the top level with, as Artpoints out not always needing great crew. As a fact we frequently areable to win races even with loft folks aboard for the trip..Ps-In boththe races we won on Sun. we finished with the J-35's who started 5 min.earlier on a W/L course.
Paul Wager
Dana Point, Ca USA - Saturday, October 24, 1998 at 23:44:29 (EDT)Truth in advertiseing:Last weekend we enjoyed J-Fest in Newport Beach, CALIFORNIA and it was a blast.When I purchased my 105 I wanted a boat to enjoy with my entire family, but being a competitive person naturally I raced and raced and raced and won and lost etc.etc...it wasn't until I had some challangeing business opportunities that I realized how great this rocketship really was..I had to miss two months of racing therefore; for the J-Fest regatta I was a little short on regular crew (all the rock stars were on other boats)but this event is such a blast I put together a family group which included my brother-in-law, my son and my 5year old grand son. It was the most fun I have had sailing in 20 years. We did not win, but we improved daily...my point!! what other racing yacht could you take a total of 6 people including a 5 year old and have such a good time? I was never worried about my grandson, because he had a job (trimming the cooler) and when I heard his screams they were, COOL Grandpa make the water come over the front of the boat again !! The grin on his face was ear to ear and was never concerned about jybing, dousing, or any of the hazards that we have all experiencied...I don't know if Hunter will remember this past weekend forever but I know I will....Thank's J Folks for the great ride.
Art McMillan
Palm Springs, ca USA - Saturday, October 24, 1998 at 00:12:56 (EDT)I am considering buying a 105 that has been modified. I would like to know what might be required in the way of "demodifying" if any. The boat has:1-running back stays and check stays2-kelp cutter3-spectra backstay with block adjustment4-flared stanchions
Chick Pyle
San Diego, Ca USA - Thursday, October 22, 1998 at 16:43:27 (EDT)Dean, I have also used the line through the turnbuckles with success this season. The rod may turn a quarter turn, but no further. After all, it is fixed at the upper end and it is fairly rigid, unlike wire or rope. It was certainly easier to adjust and I didn't find any downside.
Nelson Weiderman
Wakefield, RI USA - Thursday, October 22, 1998 at 16:32:21 (EDT)Correct me if I am wrong, but I believe running a line through the turnbuckles will not prevent the rod from turning. Hence you need both a pin and a line to keep everything secure, unless you use a ring pin finished to the outside of the turnbuckle.
Dean Dietrich
Tiburon, CA USA - Wednesday, October 21, 1998 at 20:36:08 (EDT)I've used the line threaded through the turnbuckle trick this season. It is easy to see if one of the turnbuckles has moved a quatrer turn or more . It is much easier to deal with than cotter pins.
Mark Simmons
Siloam Springs, Ar USA - Wednesday, October 21, 1998 at 00:14:14 (EDT)Not sure what to think about my Yanmar middle range vibration. Sounds like others have experienced it, some have not. For me the "obnoxious" range is 2200-2700 rpm which seems like an awfully wide range to be unusable. As far as boatspeed, I just made a 65 mile passage on a windless day on Lake Michigan (basically no current) running between 2800 - 3000 rpm. Knotmeter ranged from 6.9 to 7.4 knots (mostly from 7.0 to 7.25), GPS SOG confirmed knotmeter readings. Still think I've got some problem, albeit maybe nothing to serious. Thanks for your responses, nothing like talking with someone with the exact same boat.
Craig Juel
Valparaiso, IN USA - Tuesday, October 20, 1998 at 20:14:54 (EDT)CORRECTION: Theoretical hull speed on a J/105 is 7.6 knots (1.4 * sqrt(LWL)). You can't go that fast at 2600-2800 RPM, but as Andy says, you can get into the sixes which is fast enough for most purposes. Be careful with those Yanmars out there!
Nelson Weiderman
Wakefield, RI USA - Tuesday, October 20, 1998 at 11:51:45 (EDT)Looking for a used J/105 spin.89m2 or less.
Peter Schwenn
University Park, MD USA - Tuesday, October 20, 1998 at 10:08:04 (EDT)Question on turnbuckles: On all the boats I have owned and usually sail on, I have used cotter pins in the turnbuckles. Tape them over and such. This prevents the turnbuckle from "backing up" or "backing off". Now I have seen on other boats, a line is placed through the turnbuckles and tied off with a square knot. I have two questions. First, is this safe and does it work as well. Secondly, has any one noticed the the upper threaded shroud terminal rotating and the rod rotating as to loosen the rig and disrupt the tuning?
Bill Chambers
Marathon, FL USA - Tuesday, October 20, 1998 at 08:01:09 (EDT)Gori Props and Engine vibrations: Per Boeymo mentioned installing Gori prop.Just a note--assuming you get a 15 inch wheel, set prop for 24 degrees, not 22 degreesfactory setting. 22 degrees is too lean. You'll burn a lot of fuel and blowblack smoke above 3,000 rpm. Plus engine will not achieve 3,400 rpm (you neverrun at that speed, but engine should be able to hit it.) With Gori set at 24 degrees,we cruise at 2,900 rpm and 6.15-6.25 kts, burning 0.5 gallons per hour. Re:CraigJuel's question on vibrations: we see same natural frequency of vibration at 2,650 to 2,850 rpm. Obnoxious vibration in that range (couldn't read wet compasson pedestal while we had pedestal). Goes away below that range and dissappearsabove that range. We cruise/deliver at 2,900 rpm, which is well below sustainedredline of 3,400 rpm, but out of the vibration range. With the soft mounts, there probably isn'tanything one can do to get rid of the natural frequency vibration. Ditto Nelson's comment on running at 3,600 to 4,000 rpm--why in the world would you do that??? Plus sustained power redline is 3,400 rpm and top redline is 3,600 rpm. Unless you have a discount on Yanmar replacementengines, cruising along at 4,000 rpm is probably not a great idea for the long term.
Andy Skibo
West Chester, PA USA - Monday, October 19, 1998 at 22:06:52 (EDT)I have a 77 sq. mt Quantum spinnaker for sale that is about one year old and was only used in class regattas. Never damaged or repaired.
Dean Dietrich
Tiburon, , CA USA - Monday, October 19, 1998 at 22:06:25 (EDT)With a clean hull, you should be able to reach hull speed at about 2600 to 2800 RPM. Why would anybody run at 3000 to 4000 RPM? Trying to get up on a plane?
Nelson Weiderman
Wakefield, RI USA - Monday, October 19, 1998 at 11:43:29 (EDT)RE: Prop. I just visited the ashore #21 today, and saw that this hull number had "smaller" prop. than our #213. The owner said he could push the engine up to 3500-4000 rpm without any problems, on our #213 we can only push it up to 3300 rpm, and over that we get black smoke (fat black smoke) from the exaust, so J/boats must have changed propNext season we will have a new prop..(Danish Gori prop. maybe) wich can take the lovely boat backwards !
Per Boeymo
Fredrikstad, Norway - Friday, October 16, 1998 at 17:49:36 (EDT)thanks Craig for the comments re: blisters on the bottom. I will certainly check carefully when the boat is hauled out soon (the cracks on the deck is another issue!). I can run my engine OK to 3000 revs no problem unless I have collected weeds on the prop(it seems happier at 2800 or so - in fact I notice more of a deisel smell below if I push it at over 3000 for any length of time). In fact it seems to smooth out above 2500 so I think you have a problem.
ian farquharson
toronto, on canada - Friday, October 16, 1998 at 15:30:14 (EDT)Just finished our first season with our J/105. To be clear, we absolutely love the boat and we respect the dealer/yard we've worked with. However...1) Noticed small blisters on the keel and rudder while scrubbing in the water. Now that it's out of the water, quite a few blisters in only one year. The keel and rudder were faired, and the bottom has Interlux 2000 barrier and VC-17. The yard says they'll open up the blisters to drain over the winter and then I'm not sure who's responsible come spring. They told me that this is a very common problem with J Boats.2) My Yanmar runs fine up to 2100 rpms and OK from about 2800 to 3000 rpms (no reason to go higher). But from about 2200 to 2700, there is a disturbing amount of vibration. So much that my binnacle mounted GPS is unreadable because of the vibration in this middle range. 2100 is too slow and I'm not thrilled with running it up around 3000 all the time. Thought it might be an alignment or prop problem. They checked it out and said it's perfectly normal. I'm having a hard time believing it's normal. Talked with one other owner who normally runs his at 2500 and never noticed any unusual vibrations.Would love to hear comments from other owners on either or both issues.Thanks...
Craig Juel #176 Andiamo
Valparaiso, IN USA - Friday, October 16, 1998 at 13:53:46 (EDT)Thanks guys. My hull is 136 and was bought new.I asked the question because last time it was hauled and pressure sprayed on the bottom I noticed a few drips continuing to form here and there - long after I wiped them off. This may have been just water from the spraying getting under the antifouling layer but you never know.I also have some cracks appearing on the deck where certain tracks and hinges are screwed in. This has me more worried because this is only the boats 3rd season since new and we are investigating warranty protocol at the moment.I hope none of these things develop worse because I love my boat.regards
ian farquharson
toronto, on canada - Friday, October 16, 1998 at 11:47:32 (EDT) When I purchased hull #29 the survey contained a report on three areas where a moisture meter found moisture. The surveyor could not find any reason (no breaks,cracks or even blemishes) and these areas were ABOVE the waterline I had a long talk about this with Jon Udel (Custom OffShore was the buyer's agent). His take on the situation was that these meters don't read moisture content but aberations in density and the method of construction could produce pockets of uneven epoxy distribution. I have not had a problem for three years. I am having a minor problem with moisture around one shroud and this is after the original owner had the areas epoxied. So caulk early and caulk often..
jay corcoran
annapolis, md USA - Thursday, October 15, 1998 at 21:31:11 (EDT)Couple of comments...First, I am concerned/worried about wet core under cleats, thru-hull fittings, whatever. I understand they can only be found by use of a good survey service...also... the boat I am looking at has a 10 ft. adjustable genoa track, used to accomodate all headsails, (a class jib, a 120%, and a 155%) all are roller furling. Is this going to be a problem for future one-design class racing??? What PHRF rating would be fair for the Lk. St. Clair region, using the 110 chute and a 155 headsail? You guys out there are very helpful and I appreciate it!!!!!
Bruce Bendure
Milford, MI USA - Thursday, October 15, 1998 at 18:16:02 (EDT)Ian- By a "wet hull" I assume that we are talking about water that haspenetratedthrough the fiberglass skin into the balsa core material. This is very commonon older cored fiberglass decks ,especially around fitting such as deck cleats.On cored hulls one must check around any through hull fittings not properlycaulked. Any marine surveyer can do this check with a hydrometer.I have seen spongey decks on boats including J-105s where improper sealingof the shroud fittings through the deck has allowed water penetration and rot.
RichardLevitt
Norhtfield, NJ USA - Thursday, October 15, 1998 at 17:51:59 (EDT)Bruce - I am intrigued by your remark about "general surveys revealing a wet hull". Where does this come from? What do you mean by a wet hull, first of all and have you heard of problems in this regard with J105's - just curious.
ian farquharson
toronto, on canada - Thursday, October 15, 1998 at 12:25:55 (EDT)Thanks again for the excellent advice and encouragement. The support of the owner's organization is pushng me closer all the time! Any Lake Erie sailors out there who can comment on their PHRF experience? Will ageneral survey reveal any problems with a wet hull? What else should I be looking for? It is starting to get cold up here, and I am running out of time.
Bruce Bendure
Milford, Mi USA - Wednesday, October 14, 1998 at 17:19:46 (EDT)I just had another great weekend racing THOR in the Doheny Series (2 windward/lewards and 1 RLC). Won A div. with three 2's, and a bit of luck when a protest happy non- placer knocked a Antrum-27 out of first. The GOOD news is that we handled a well sailed J-35 with only a six sec. phrf on the W/L and even on the RLC in two of the three races. We did quite well on the runs sailing almost as deep and faster. My phrf advice to Bruce is to resist the temptation to pinch with J-35s etc., let the boat foot and with good sail trim you will reach the windward mark before or with any other 72 rater.
Paul Wager
Dana Pt. , Ca USA - Tuesday, October 13, 1998 at 18:30:28 (EDT)Bruce - the only pain in the neck about PHRF vs level is the fact that you need to up the max number of crew in heavier wind to be competitive (thats on a windward/leeward course though. You can carry as many as 10 upwind). As for Octagonal courses wow - wish I had me one of those for a J105!
ian farquharson
toronto, on canada - Tuesday, October 13, 1998 at 10:00:42 (EDT)Bruce, you need to tell us your sail inventory. PHRF 75 sounds like a 155 genoa and a 110 kite. If so, you should be competitive. As a general rule, you're better off with more reaching legs and more wind. You'll suffer on dead downwind legs in the light stuff. Octagons??? are certainly better than windward/leeward courses for you.
Nelson Weiderman
Wakefield, RI USA - Tuesday, October 13, 1998 at 08:48:00 (EDT)First, thanks for the excellent help. I would like to know how well the 105 will perform under PHRF rating of 75 on Lk.St. Clair. Our course is octagonal, with only 2 legs directly upwind (usually). More reaching than most courses. Can it keep up with the big boys? Most of our races are light air, some drifters, and a few blows, but not many.Any personal experience with PHRF racing????What should I be thinking about????Thanks again.
Bruce Bendure
Milford, MI USA - Monday, October 12, 1998 at 16:20:08 (EDT)My skipper has just sold his J-30 and purchased a J-105. What are we in for? Any J-105 skippers/crew with prior J-30 experience please chime in.
Peter Olivola
Oak Park, IL USA - Saturday, October 10, 1998 at 22:35:47 (EDT)WET PAINT will be in KEY WEST. We stayed at Robbie's Marina last year. Although the yard is basic, they did an excellent job setting up and launching. Keeping the boat at Stocker Island meant that we were close to our starting line and only a 10 minute car ride to town. The crew liked this because they got back to town with plenty of time for showers before the tent. My trailer is available for anyone who may need it. Penninsula Marina has quoted $5/foot (in & out), $150 crane charge and $7.50/day dry storage (for before and after the regatta). Bob Tayor of HIJINX has indicated to me that there is serious interest from several boats who have yet to make a commitment. If there is no J105 start at KWRW, Peter Craig of Premier Racing will return your entrance fee up until the race time. So, early response will help everyone in their planning.
WET PAINT - Don Priestly
Mashpee, MA USA - Saturday, October 10, 1998 at 19:15:47 (EDT)If Andy is right, that the SD boats might as well not show up with a 6 sec/mile handicap, then the class better do something 'cause 32 of the 36 closest boats (Fla. & Chesapeake) are SD. I don't whether the new boats in SC are deep or shoal draft. Maybe the class needs to adopt a different rating for KW...I can't image there are many owners who intend to change their keels to have a chance at winning....
Stuart R. Burnett - hull 198 - LEGACY
Richmond, VA USA - Friday, October 09, 1998 at 16:58:00 (EDT)I am considering a used J-105, vintage hull # 10. Any inside scoop I need to know regarding this year, what upgrades that I will miss, or general opinions. I am a bit concerned about the hull not being vacuumed (scrimp). Any issues there? I would be planning on racing PHRF on Lk. St. Clair. Thanks for any and all comments and/or email.
Bruce Bendure
Milford, MI USA - Friday, October 09, 1998 at 16:24:57 (EDT)Response to Stuart Burnett's question regarding keel conversions for KeyWest: Answer is obvious: KW is typically sailed in moderate to heavyair (say upper teens to low 20's kts) and ocean waves. At the risk of beingthe first to say the emporer has no clothes, at 6 seconds a mile under thoseconditions, an SD boat will get KILLED, all other things being equal. An out-of-state program is going to cost $12-15K and take 1.5 weeks of time minimum to execute.Plus weeks of logistics. No one does that knowing that the chances of winning arematerially prejudiced by the platform your riding on. Unless you're goingto KW just because it's a nice spot to be in January.
Andy Skibo
West Chester, PA USA - Wednesday, October 07, 1998 at 20:49:55 (EDT)10-7-98Key West Race Week.First things first. Called to Key West marinas today. The marinas in the bight or rather down town had NO slips. In fact some had waiting list 15 to 18 deep.In the past years the J105 raters have actually been sailing off of Stock Island about 5 miles before you get into down town Key West. Could be different this year, but doubt it.There are two marinas that I found that still have dockage.Robbie's Marina 305-294-1124 Peninsular Marina 305-296-8110Both of these marinas are very basic, dirt parking lots, nothing plush like down town, but they will float your boat and are 1/2 mile form the start; down town is about 4 miles away and very congested, but could be more fun.Oceanside Marina may have some slips that owners may rent out but will decide later. 305-296-7583. Pretty nice marina for the Keys. I got the last slip this morning. You may try to get on a waiting list for the private docks that may open up later.Some of the classes rented an entire marina at the end of KWRW last year for this season! We might think of this for next year.Housing: These listed will have cottages, homes, and condos.Sara Cook 305-294-8491Old Island Realty 305-292-7997Greg O'Berry 305 294-6637Colwell Banker 305-294-6262 I Photocopied the phone book pertaining to: Hotels, Motels, Rentals, Marinas, Boat Yards, and the like. It's about 14 pages of information. E-mail me and I will send it to you, (Yes I will pay with the postage)Better get the dockage first!Good luck.
Bill Chambers
Marathon, FL, USA - Wednesday, October 07, 1998 at 20:02:39 (EDT)10-7-98Key West Race Week.First things first. Called to Key West marinas today. The marinas in the bight or rather down town had NO slips. In fact some had waiting list 15 to 18 deep.In the past years the J105 raters have actually been sailing off of Stock Island about 5 miles before you get into down town Key West. Could be different this year, but doubt it.There are two marinas that I found that still have dockage.Robbie's Marina 305-294-1124 Peninsular Marina 305-296-8110Both of these marinas are very basic, dirt parking lots, nothing plush like down town, but they will float your boat and are 1/2 mile form the start; down town is about 4 miles away and very congested, but could be more fun.Oceanside Marina may have some slips that owners may rent out but will decide later. 305-296-7583. Pretty nice marina for the Keys. I got the last slip this morning. You may try to get on a waiting list for the private docks that may open up later.Some of the classes rented an entire marina at the end of KWRW last year for this season! We might think of this for next year.Housing: These listed will have cottages, homes, and condos.Sara Cook 305-294-8491Old Island Realty 305-292-7997Greg O'Berry 305 294-6637Colwell Banker 305-294-6262 I Photocopied the phone book pertaining to: Hotels, Motels, Rentals, Marinas, Boat Yards, and the like. It's about 14 pages of information. E-mail me and I will send it to you, (Yes I will pay with the postage)Better get the dockage first!Good luck.
Bill Chambers
Marathon, FL, USA - Wednesday, October 07, 1998 at 20:00:59 (EDT)We would like to charter a deep keel J-105 for Key West. We are experienced Mumm 30 and J-24 sailors.
Cory G. Wingerter
Millstone Twp., NJ USA - Wednesday, October 07, 1998 at 13:09:30 (EDT)Key West Race Week -- Currently there are only 3 J105's in Florida, that I know of, bummer. I spoke with Southern Crescent, Dan Kerkhoff of Naples, and he plans on making the race. Spoke to the owner of Carioca and he is a no. I plan on making the race. This gives us 2 boats of the 3 in Florida. (Neither of us plan on doing a keel conversion.) Thus we will need 8 boats shipped in. LETS SEE WHO ELSE IS PLANNING ON THE TRIP. But, for now these are the numbers. I have heard of a boat at Ross Yachts in Tampa that is for sell. Someone may want to contact them, to see if Ross Yachts has an interest in chartering.
Bill Chambers
Marathon, FL, USA - Tuesday, October 06, 1998 at 22:09:13 (EDT)Andy's comments about keel conversions raises a good issue. Will there be both shoal and deep draft J/105s racing at Key West? If so, will the usual 6 sec/mile handicap be applied? If so, and if it is the right value, then why are people CONVERTING THEIR KEELS for this race?
Stuart R. Burnett - hull 198 - LEGACY
Richmond, VA USA - Tuesday, October 06, 1998 at 09:50:15 (EDT)Response to Bill Chambers re: Key West--Plum Crazy is currently 85% certain to do Key West, IF! we are racing class. (We spend zero $$$ traveling to PHRF events.)Logistics questions governing for us are keel conversion (from SD to deep),transportation and lodging. Keel conversion at end of Chesapeake season seemsdoable. Boat transportation seems like main loose end right now. I do needto finalize decision within next two weeks both to lock in housing and getour folks 1999 schedule locked in. Does anyone have a roster of solid attendees?I know Don Priestly of Wet Paint from LI fleet is ramrodding action fromup there. Understand two South Carolina boats are going-also converting from SD to deepto do so. Anyone else? I'll poll NJ boats, but probably only one, other than Plum Crazy, is a possibility.
Andy Skibo
West Chester, PA USA - Tuesday, October 06, 1998 at 01:01:22 (EDT)Re: Key West Race Week......now that things are winding down here in the LIS and RI areas, several owners this past weekend at American YC Fall Series have started looking into getting their boats to KW. The discussion involved how many Florida and South Carolina boats may be going as well if there was any interest from the Ches. Fleet. The picture should clarify in the next 2-3 weeks as the logistical concerns are answered...
Bob Taylor
Jamestown, RI USA - Monday, October 05, 1998 at 16:08:02 (EDT)NOTICE OF ANNUAL MEETING FOR CHESAPEAKE FLEET: The Annual Meeting of the J/105 Fleet in the Chesapeake Bay will take place at 7:30 pm on Sunday, October 11, at J/Port Annapolis. All owners and crew are invited, with the owners' attendance especially requested for the "business" session that will take place during the course of the evening. Please contact Chris Groobey, Secretary of the Chesapeake Fleet, with any questions.
Chris Groobey
Washington, DC USA - Monday, October 05, 1998 at 11:10:59 (EDT)Have not seen a lot of talk about Key West Race Week, and the Mid Winters on this site. Are there any other boats considering this trip down. Currently there are 2 boats considering the race from local waters, "[this is not an] EMESIS BASIN", and SOUTHERN CRESENT from Naples, FL. I only have to go a whole 42 miles to get there!!! But, then again there is no one around here to sail or train against! If any one needs some local info, feel free to contact me or my wife Robin. She knows Key West real well. It will be bad to get only 5 or 7 boats and not race class, and then be stuck in a PHRF fleet when you come this far. So, lets start hearing from the boats anticipating the trip down, here on this site. If no on is talking about racing then no one is going to come. Bill Chambers"EMESIS BASIN"Home phone 305-743-3211.
Bill Chambers
Marathon, FL USA - Sunday, October 04, 1998 at 18:49:04 (EDT)Dan, there are some good remarks on sailtrim in the JBoats press release that I posted. HIJINX used Banks main and jib and NO SURRENDER used North. But I'll go out on a limb and say that those two teams could have been 1-2 in almost any boat out there. The secret of HIJINX is that the team has been together as a unit on the 105 for three years. The're not pros, but they know the drill and they execute well. They are fast and they react to changing conditions well. They make very few mistakes (like turnovers in football). They dry sail the boat and they take very good care of the sails. The sails are two years old, but they don't use them except for 4-5 regattas per year. Several other boats brough brand new sails to the party, but the crew made the difference in my opinion, not the sails.
Nelson Weiderman
Wakefield, RI USA - Wednesday, September 16, 1998 at 16:48:57 (EDT)Nelson, Love your comments on Polars. In one design they are only guidelines and not that good at that. Also agree with your comments regarding keeping halyards, outhauls etc. loose in light air. Foot off and keep the boat moving. Can you share more about the NA's? Whose sails did the top boats use? What were the wind conditions? and what differenes in sail settings did you notice? Did HiJinx have superior speed, did they sail smarter, or both? Look forward to your comments. Hull #164 Dan Austin
Dan Austin
Richmond, VA USA - Tuesday, September 15, 1998 at 16:23:08 (EDT)On Polars and Target Speeds. Remember the following sources of error andvariation (inappoximate decreasing order of importance): (1) knotmeter readings asinfluenced by wash off the keel (port and starboard readings WILL be different bya couple of tenths), (2) sea conditions, (3) sail configuration,(4) knotmeter calibration, (5) knotmeter error, (6) errors in the theory of producing the polars, etc., etc.Polars can be of use as general guidelines for new racers to establishtargets when they are racing the clock or in PHRF. Polars are lessuseful to competitive racers in one-design fleets. Foot mode or pointmode depends on sea conditions and competitive conditions, not on what thepolars say. Never does the racer say "well, I need to increase my VMGby three hundreths of a knot to weather by changing my apparent wind angleby one degree." The velocities computed to thousanths of a knot on the sheets you get from US Sailing are acruel joke. They are not usefully accurate even to tenths of a knot in the real worldwhere the wind and sea are constantly changing. On Kima, weset our targets every few minutes on the racecourse based on wind and seaand competitive situation. They vary by several tenths from starboard toport and depend very little on theoretical polar data (but we have it postedfor reference). So the message is not to worry about a couple of tenths differencebetween sources of information. There are too many variables to make that aproductive exercise.
Nelson Weiderman
Wakefield, RI USA - Monday, September 14, 1998 at 09:59:23 (EDT)I meant in light air with the class jib & main we were easing the halyard until we had wrinkles in the luff of the jib and main that were more than 20" long. Also, we had the mast completely straight with no prebend and no backstay. These settings were good for 6 kts or less. Since I finished next to last in the regatta, maybe I shouldn't be offering advice, but we definitely had equal speed upwind after we made these changes before the last race.
Stuart R. Burnett - Hull #198 LEGACY
Richmond, VA USA - Monday, September 14, 1998 at 09:08:01 (EDT)Help! I am confused with the J105 "Target Speeds". The one from the brochure doesn't match up with the one from the home page. I also recently purchased one (performance package) from US Sailing and it doesn't match up with either one. The 105 that we use in the midwest is the following:Deep Keel155 Genoa88 sq.m SpinnakerI have gone back to US Sailing twice without much success. What design are the targets for on the broshure and on the home page?Thanks, Rick
Rick Wollerman
Naperville, IL USA - Sunday, September 13, 1998 at 11:30:53 (EDT)Stuart, you mentionned that you loosen the jib and main halyards a lot. Then you say (>20"). That has us confused. Do you mean that you loosen the halyards over 20" or that the horizontal wrinkles are over 20"? And which halyards? Both? My crew are still a little skeptical easing the halyards so much and like to still put some backstay on. Problem is we are still not doing well in very light air (in PHRF). thanks Ian (ia...@speedware.com)