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Inter 17 advice #948
07/21/01 06:42 PM
07/21/01 06:42 PM
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brobru Offline OP
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Hello,
<br>I am asking for Inter 17 sailors to reply.
<br>Upwind in waves,...say 3+ ft,...15-20 winds,...how do I keep the hull up ..and keep my speed.
<br>Bruce
<br>ps,..I sail out of St. Croix, Virgin Islands<br><br>

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Re: Inter 17 advice [Re: brobru] #949
07/22/01 01:20 PM
07/22/01 01:20 PM
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North-West Europe
Wouter Offline
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A !-17 guy at my club had the same trouble in todays clubrace. So if you get an answer please post it and I will forward it to him !
<br>
<br>He has also unable to outpoint and outrun my Prindle18 on a very long upwind leg (against the currents). Theoretically he should smoke me with those daggerboards and being cat rigged.
<br>
<br>Wouter<br><br>


Wouter Hijink
Formula 16 NED 243 (one-off; homebuild)
The Netherlands
Re: Inter 17 advice [Re: brobru] #950
07/23/01 06:43 AM
07/23/01 06:43 AM
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Michigan, USA
sparky Offline
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In 15-20 knots of wind, it should be no problem keeping a hull flying, rather more of a problem keeping the forward momentum as you feather up to keep from blowing over. Given that, sheet out on the mainsheet to drive the center of effort lower on the mainsail. Playing the mainsheet to maintain the windward hull just out of the water is what you need. If the boat is not driving forward as a result, then travel out a bit. The weight of the skipper will be the determining factor on how much you need to travel out to keep the boatspeed up. This method will not allow you to point as high as you can with everything travelled in and sheeted in, but in 15 -20, I am always feathering up to depower the boat. I hope this helps.<br><br>Les Gallagher
<br>Inter 17R USA 104
<br>"little yellow boat"

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Les Gallagher
Re: Inter 17 advice [Re: Wouter] #951
07/23/01 07:21 AM
07/23/01 07:21 AM
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Wouter,
<br>Thanks for the reply. Look at the next posting by Les,....I always look for a expert,,,....looks like Les is it.
<br>regards,
<br>Bruce
<br>ps,...congrarts to you for smokin' the I17! ha!<br><br>

Re: Inter 17 advice [Re: sparky] #952
07/23/01 07:36 AM
07/23/01 07:36 AM
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brobru Offline OP
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LEs,
<br>1. I see your pics in the CAT HOUSE site. Nice
<br>2. I need to pick your brain,..ok?
<br>3. I am 230 dry,....so after all the gear and getting wet there is more weight,...right?
<br>4. I sail a I-17,.....not the R (...in my area, I can barely hold this one down,....I could not imagine MORE sail area..!)
<br>5. No spin (...the next step,....next year)
<br>6. Again, I need your advice.
<br>7. I have found leaving the Main Set,...and travelling down, to get that 'groove'. When a 'blast' comes,..I will steer up,...which works,...but I am sacrificing speed(..I can feel it),...then as the 'blast' passes I just steer down a clock or 2 to get the hull 'skimming'....am I chickening out?
<br>8. In St. Croix, summer is 15mph (+/-3).....in the Winter it is 20 (+/- 5),...most of the races ( Rolex, BVI, St.Croix International,St. Martin Heinekin, Puerto Rico Heinekin)
<br>9. I am the Only I-17 in fleet, The only boat I have not beat is a tricked out P-19MX with a semi pro driver., The N5.8, P19, H16,TheMightyHobie18, H18M,...the I-17 got them all.
<br>10. What drives me crazy is the I-20,...they just sit with one hull up all the time (..I was on one yesterday,...in calm waters,...when on the wire, I kept losing balance??)
<br>11.. Les, Remember, in a 3 foot Caribbean wave, that is 3 feet up and 3 feet down...6 feet total dimension,.....one my be 3,...the next 10 may be 2,...then next 2 are 4 footers,...on and on and on
<br>Thanks1
<br>Bruce Andryc
<br>#50 I-17
<br>St. Croix<br><br>

Re: Inter 17 advice [Re: brobru] #953
07/23/01 08:28 AM
07/23/01 08:28 AM
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Houston
carlbohannon Offline
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In general, I have found that 1 man uni-rigs are not competative when the winds are above 12-15 kts. You just can't hold them down. The only single handed cats I have seen, that are competative in heavy air, are A-cat with heavy skippers.
<br>
<br>I never found any magic formula to make a N5.5uni work in heavy air. To make the most out of your boat going upwind, steer through the waves, like they are hills. If you are slamming into waves and coming to a stop, you are not doing it right.<br><br>

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Re: Inter 17 advice [Re: brobru] #954
07/23/01 08:36 AM
07/23/01 08:36 AM
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Michigan, USA
sparky Offline
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Bruce,
<br>1. Thanks for the compliment on my boat's appearance! I am VERY pleased with how it came out!
<br>2. I am always glad to lend a helping hand when I can.
<br>3. I weigh 200 lbs. Anytime you get wet, you add more weight. 230 lbs dry plus gear plus everything being wet will result in being somewhat heavier.
<br>4. I sailed the I-17 before my "R" rig was delivered and the I-17 has plenty of power without the taller mast and added sail area. In your winds, I don't think the "R" is required, however, a carbon mast is a big plus! It is easier to right and suffers less performance degradation from the pitching in waves. I will never go back to aluminum after sailing with a carbon mast.
<br>5. The spinnaker will add significantly to the pleasure of this boat! You won't believe how fast it goes downwind!
<br>6. I am glad to help.
<br>7. I would not call your actions "chickening out". It is one way to deal with the issue of preventing being blow over. The books say that the fast way to deal with this situation is to sheet out and bear off to drive through the blast to take advantage of the increased power. I have tried this and the speed is maintained. I seem to revert to feathering up and getting closer to the weather mark but am not sure that I wouldn't be better off to bear off through the blast using the mainsheet to keep the boat flying a hull just above the water.
<br>8. I dream of having such winds. Here in Michigan, we don't see 15+mph winds during our weekend races more than once or twice a summer. Some of us change boats (to ice boats) in the winter! I ski instead of ice boat.
<br>9. You are doing better than your Portsmouth number indicates. The I-17R number with spinnaker is about the same as the N5.8.
<br>10. The I-20 has alot more power than the I-17 and it has a skipper and crew to continually make adjustments. The most powerful tool to keep that hull skimming is the downhaul that the crew plays as the the boat goes upwind. I did this with a friend on his I-20 and I could keep the hull just skimming the tops of the waves. Really cool! Unfortunately, with only two hands, I prioritize the steering (#1) and mainsheet when I am on the wire on the I-17R. That means I leave the downhaul on the boat.
<br>11. I am sure you know better than I do about going up and over the waves...about powering up to drive up a wave and then taking advantage of the downhill ride going down them. Even in the little waves I see on the Great Lakes, this makes a significant difference in keeping the boat driving hard and fast. For us, catching waves and driving over them going downwind makes the difference between winning and being an "also ran" in our races.
<br>
<br>Sounds like you are doing great on your I-17! Keep having fun!
<br>
<br>Les Gallagher
<br>Inter 17R USA 104
<br>"little yellow boat"<P ID="edit"><FONT class="small"><EM>Edited by sparky on 07/23/01 09:00 AM.</EM></FONT></P>


Les Gallagher
Downhaul is MOST important [Re: sparky] #955
07/23/01 09:00 AM
07/23/01 09:00 AM

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I sail a Taipan 4.9 as a uni with a Hooter for off the wind. In my experience I have found that the downhaul in these and most cats that I have sailed is probably one of the most important tools to trim.
<br>Knowing that you are a bit busy -- one hand for the sheet, the other for the tiller -- it still is a good idea to have a long downhaul sheet that you can lay in your lap or have nearby and trim when the wind pipes up for a while, and ease when it lets up.
<br>At the end of the downhaul line I usually just tie a bowline around the trapeze bungee cord -- that way the downhaul is nearby at all times. If I need it, I just reach down and grab it and trim.
<br>Just in case you don't know, the downhaul will bend the mast. The bending mast will allow the fullness of the sail (built into the luff curve) to fill the vacancy left by the bending mast and thereby flatten the sail. The flatter the sail the easier to control the hull flying, and the faster you will go in the heavier air
<br>Crude presentation, but then again it is early on Monday.
<br>Good luck,
<br>Rick White<br><br>

Re: Downhaul is MOST important #956
07/23/01 09:18 AM
07/23/01 09:18 AM
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sparky Offline
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Rick,
<br>
<br>Thanks, Rick. I will give it a try this weekend! As this relates to the St. Croix posts, by the time it is blowing 15+, I usually have used all of my downhaul, the sail is flat as a board, and I am just trying to keep the windward hull near the water!
<br>
<br>It is clear that I could use another dose of the Rick White Sailing Seminar, especially since the last time I was sailing the N5.5Uni and I have the new boat (well, year old boat). Last time, I did the 3- day seminar here in Michigan. That drive to the Keys is just soooo far! I may still find a way to bring my boat to the Keys next April. It is always a great benefit to attend your seminars! Any idea on the guest instructor for next April?<br><br>Les Gallagher
<br>Inter 17R USA 104
<br>"little yellow boat"

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How about upwind on a I-20 #957
07/23/01 09:57 AM
07/23/01 09:57 AM
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Mark Meis Offline
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I sail an Inter 20 and note once the breeze picks up to 12 plus or so I have a hard time keeping the boat down and the speed on. The boat jumps out of the water and I have a tendency to feather up (driving S curves). At this point the downhaul is on hard. Nothing like on a N6.0 where you could play the downhaul in high winds and just squirt the boat forward. I guess the next approach is to play the travelor.
<br>
<br>So my upwind performance on the I-20 sorta stinks. I need a new approach.
<br><br><br>Mark
<br>Inter 20 no. 274
<br>Houston, TX


Mark C28R no. 140 Houston, TX
Re: How about upwind on a I-20 [Re: Mark Meis] #958
07/23/01 12:45 PM
07/23/01 12:45 PM

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Mark
<br>Matt Struble just tuned my I-20, Now everyone thinks I finally learned to sail. Moved my spreaders back to 2.5" & really increased the pre-bend. I was concerned about sailing with 400lbs on the boat, But Matt said " the mast now matches the sail" seems to work at Tawas, we were in the middle instead of last.<br><br>

Re: Inter 17 advice [Re: carlbohannon] #959
07/23/01 06:37 PM
07/23/01 06:37 PM
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Thanks for the info,....see all this stuff helps. I find the wind OK to deal with on the 1-17. In the St.Croix International in Feb '01,...it blew 30+ all day long with a squall going thru the course (...got weather info later)..at 45 mph,....all the I-20s kept flying their chutes....
<br>I never flipped,...just pinched my way around the course,....the waves were killers.
<br>Good tip on the wave attach,.....I usually get about 80% of them,...its those 20% ers that outfox me.
<br>Keep writing
<br>Bruce
<br>St. Croix<br><br>

Re: Downhaul is MOST important #960
07/23/01 06:47 PM
07/23/01 06:47 PM
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Rick,
<br>1. Thanks for the tips,...see the expert stuff takes years out of the learning curve,....so keep writing!
<br>2. Now, for my next ' chicken out',...I am truely considering the HOOTER with Furling on the I-17,....I have no other I-17 ao I do not have to worry about being out of class.....so Rick,...how would you set up a I-17 (normal) with your configuration?
<br>3. Unless I grow another arm or two,.....or if the Trade Winds stop blowing in the Caribbean,...I could not consider a 'snuffer' spinnaker.
<br>Bruce Andryc
<br>St. Croix<br><br>

Re: How about upwind on a I-20 [Re: Mark Meis] #961
07/23/01 07:01 PM
07/23/01 07:01 PM
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Mark,
<br>1. I talked to a I-20 owner here.
<br>2. When you hit 12 or so,...travel down 4-5-6 inches
<br>3. leave downhaul off
<br>4. leave mainsheet normal
<br>5. play downhaul in blasts
<br>6. keep 'sneaking' trav down until it 'feel' fast.
<br>7. I have seen I-20 scream upwind with hull up and stable at 4 feet like they have invisable 'legs' or something.,,,,,of course this was Niles from Florida,...John Holmberg from St. Thomas,..and Keke Figuroa from PR......they all had to learn sometime,...right?
<br>8. Next step,...ask Rick White for advice
<br> regards,
<br>Bruce Andryc
<br>St. Croix<br><br>

Re: Inter 17 advice [Re: brobru] #962
07/24/01 03:57 AM
07/24/01 03:57 AM
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I sail a Taipan 4.9.
<br>In heavy air I increase downhaul to depower mainly to desensatise the boat to the gusting.
<br>I ease the traveller a little to make the boat drive . (Otherwise it points great but goes slow.)
<br>
<br>To compensate for the lost pointing I ease the outhaul a little.
<br>Now I'm driving and pointing.
<br>Once I've got these right I just steer the boat to keep the windward bow a couple of inches above the water.
<br>
<br>In the gust it helps to steer up a little before you have to that way you get to accellerate at the same time. If you wait until your lifted too high you tend to slow down too much.
<br>Just the way I play the game.
<br>
<br>Hope it helps.
<br>Phill<br><br>


I know that the voices in my head aint real,
but they have some pretty good ideas.
There is no such thing as a quick fix and I've never had free lunch!

Phill, Rick and Les.. [Re: phill] #963
07/24/01 06:42 AM
07/24/01 06:42 AM
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Phill. Rick and Les,
<br>1. Thank you for the tips.
<br>2. Going out Wedns nite to try it on
<br>3. thanks to all the rest of info!
<br>regards,
<br>Bruce
<br>St. Croix<br><br>

See the reason for Phill's claim of letting the .. [Re: phill] #964
07/24/01 07:56 AM
07/24/01 07:56 AM
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Wouter Offline
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Phill said ":I ease the traveller a little to make the boat drive . (Otherwise it points great but goes slow.) "
<br>
<br>See the reason for Phill's claim of letting the traveller out a bit.
<br>
<br>go to :
<br>
<br>http://www.geocities.com/kustzeilen/sailvectors.html
<br>
<br>And look at the two graphs at the bottom of the page.
<br>
<br>you'll see that given equal angles of attack the boat on 30 degrees has about the same heeling forces as the 45 degree boat but it's thrust (drive) is only about 60 % of the boat on 45 degrees to the winddirection. So pointing to depower can easily be a bad move. Reducing the angle of attack by letting the traveller out a bit could be better.
<br>
<br>I hope this clarifies things a bit more.
<br>
<br>Wouter
<br><br><br>

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Wouter Hijink
Formula 16 NED 243 (one-off; homebuild)
The Netherlands
Re: See the reason for Phill's claim of letting the .. [Re: Wouter] #965
07/24/01 08:03 PM
07/24/01 08:03 PM
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Thanks Wouter!
<br>Bruce
<br>St. Croix<br><br>

Re: Downhaul is MOST important [Re: sparky] #966
07/27/01 07:39 AM
07/27/01 07:39 AM
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To ALL,
<br>1. Thanks for the tips,....went out last evening,..15+,...sailed for 1 hour before dark,.....tried to do the new aspects.....working on it.
<br>2. Tom and Scott rigged up their I-20 as I came in,...at dusk, they were still out there!
<br>
<br>regards,
<br>Bruce
<br>St. Croix
<br><br><br>

Re: Inter 17 advice [Re: phill] #967
07/29/01 03:28 PM
07/29/01 03:28 PM
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Phill,
<br>1. I was out yesterday,.stayed inside the reef,...so I wouldn't have to deal with the waves.
<br>2. I tropical wave was beginning to come, so I wanted to try out all the new pointers..
<br>3. blowing 20+ , steady, with light gusts,.....
<br>4. Once I gave the I-17, 3 inches of release on the outhaul,....man did that boat settle down,.....like magic,....oh it would still react to a gust,...but in a more controled manner,...
<br>5. I felt a little ( 10-15%) slo,......cause?,.....cure.
<br>Thanks to all,
<br>Bruce
<br>St. Croix<br><br>

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