Edition
Boats for sale
| Laser 140101 Tynemouth |
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| Rossiter Pintail Mortagne sur Gironde, near Bordeaux |
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| Laser 28 - Excellent example of this great design Hamble le rice |
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List classes of boat for sale |
Dinghy speeds |
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H2 
Really should get out more 
Joined: 26 Jul 17 Online Status: Offline Posts: 750 |
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 Topic: Dinghy speedsPosted: 06 Jan 22 at 7:36pm |
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98 KM/h on a board: https://www.youtube.com/watch?v=3pMJmOG5J7s
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H2 #115 (sold)
H2 145 OK 2082 |
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Sam.Spoons
Really should get out more
Joined: 07 Mar 12 Location: Manchester UK Online Status: Offline Posts: 3401 |
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Posted: 06 Jan 22 at 6:47pm |
Your mistake was bringing a knife to a gunfight, you should have used a 'proper' Raceboard
 Edited by Sam.Spoons - 06 Jan 22 at 6:49pm |
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Spice 346 "Flat Broke"
Blaze 671 "supersonic soap dish" |
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turnturtle
Really should get out more
Joined: 05 Dec 14 Online Status: Offline Posts: 2538 |
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Posted: 06 Jan 22 at 6:20pm |
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I’ve had the fastest craft in the race* on one RTC Wednesday - Kona Carbone windsurf board.
Clocked over 30 knots once on that bad boy with a 7.8 double cam freerace sail - I’d like to see a 49er get anywhere near that on paper. Why then did Laser Radials beat me over the water? 1) I’m not that good 2) it was not planing conditions 3) some one put a proper beat in the course 4) top speed is a redundant in benchmarking disparate craft PY - best you’re gonna get. If you don’t value it, don’t do it anymore. I don’t. (* straight line speed, reaching) |
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GML
Groupie 
Joined: 24 Jul 11 Online Status: Offline Posts: 94 |
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Posted: 06 Jan 22 at 1:44pm |
RYA publishes a number of such spreadsheets to help race officers set courses that achieve a given target race time - see: http://www.rya.org.uk/racing/running-racing/speed-charts
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423zero
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Joined: 08 Jan 15 Location: United Kingdom Online Status: Offline Posts: 3420 |
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Posted: 06 Jan 22 at 12:24pm |
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Needs a spreadsheet of speeds obtained from various windspeeds, upwind, downwind. etc.
No idea what use it would be though ? Handicap racing would be governed by PY anyway. you could have the fastest dinghy in the world but still be beaten by a Topper.
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Robert
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iGRF
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Joined: 07 Mar 11 Location: Hythe Online Status: Offline Posts: 6499 |
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Posted: 06 Jan 22 at 12:07pm |
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Those Aero's are bloody quick offwind in a blow, I was maxed on the wire in my Farr 3.7 and an Aero 7 came past me like I was stood still.
As to what the OP is looking for, join the queue, an actual factual performance list not perverted by the prevarications and gerrymandering of the illuminati on the pyag is long overdue. |
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423zero
Really should get out more
Joined: 08 Jan 15 Location: United Kingdom Online Status: Offline Posts: 3420 |
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Posted: 06 Jan 22 at 11:38am |
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Aero 7 seems to be becoming the dominant sail size, good turn of speed.
Nice to see the H2 represented, dedicated bunch of owners. |
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Robert
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Sam.Spoons
Really should get out more
Joined: 07 Mar 12 Location: Manchester UK Online Status: Offline Posts: 3401 |
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Posted: 06 Jan 22 at 11:06am |
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My experience is that dinghies start to plane around 8 knots and are planing by10 knots, 12 knots feels fast. Windsurfers actually start to plane at very similar speeds* but go much faster with 25 knots being pretty achievable for an average bod like me with 28/29 knots being a bit like the 16 knot barrier TT mentions in a dinghy, passing that requires a change in technique and courage.
* As, surprisingly, does my RIB.
Edited by Sam.Spoons - 06 Jan 22 at 11:07am |
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Spice 346 "Flat Broke"
Blaze 671 "supersonic soap dish" |
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Gfinch
Groupie
Joined: 09 Nov 09 Location: United Kingdom Online Status: Offline Posts: 67 |
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Posted: 06 Jan 22 at 10:51am |
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I’ve recorded 15kts in my laser, on GPS but that was with at least 2kts of tide and during a very big gust on a broad reach. It was just on the very edge of being in control.
Seem to max around 11kts on GPS in a National 12, but I sail on a tidal river so that has an impact too. |
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3513, 3551 - National 12
136069 - Laser 32541 - Mirror 4501 - Laser 4000 |
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Peter Barton
Posting king 
Joined: 10 Oct 05 Location: United Kingdom Online Status: Offline Posts: 129 |
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Posted: 06 Jan 22 at 10:41am |
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A good source of real recent data of max speeds over a very wide selection of classes is available from just six weeks ago from the GPSs at the Draycote Dash in November here;
The bottom of the page has them PY adjusted which is interesting for comparing max speed capability relative to their average performance based on Great Lakes PYs. The speeds would have been set in the Sunday's pursuit race which was probably an average windspeed of about 14kn but gusty with gusts up to about 18kn to produce these speeds. The course had lots of angles with these speeds likely set on a medium or broad reach at the leeward end of the course where the wind was cleaner. High leverage boats (trapezes) may favour a tighter angle for max speed whereas higher canvased lower leverage boats may favour a broader angle. Photos do suggest it is true that you speed is "not as much as you think while you're sailing it!"! and that large amounts of spray are not necessarily a good indicator of going fast; |
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