Laser 28 - Excellent example of this great design Hamble le rice |
![]() |
Rossiter Pintail Mortagne sur Gironde, near Bordeaux |
![]() |
List classes of boat for sale |
Changes at SCHRS |
Post Reply ![]() |
Page <1234> |
Author | |||
SX-ed up ![]() Newbie ![]() ![]() Joined: 28 Apr 06 Online Status: Offline Posts: 10 |
![]() ![]() ![]() ![]() Posted: 22 Jun 06 at 4:25pm |
||
I take the point about encouraging racks, my worry about using overall beam is if we assume the pivot point is the downwind board (plate, skeg) then boats with wider hulls, for example a shearwater, have a narrower effective beam. You then need to get more complex by using the waterline beam for the boats righting moment and the total beam (or distance from the downwind board to the trapeze 'artists' feet i.e. (total beam + waterline beam)/2 ) for the crews righting moment. It's all a bit fanciful anyway as most boats are designed to be powered up in a similar wind range, with the sail area dictated by righting moment and the SCHRS already goes to great lengths to calculate sail area. One good thing though, if boats start to get narrower because beam costs on handicap then perhaps I can forget the diet Steve |
|||
![]() |
|||
tornado435 ![]() Posting king ![]() ![]() Joined: 05 May 06 Location: United Kingdom Online Status: Offline Posts: 196 |
![]() ![]() ![]() ![]() |
||
You and me both Steve. More sail, less righting moment might give me a chance without having to eat lettuce for the rest of my life |
|||
![]() |
|||
Scooby_simon ![]() Really should get out more ![]() Joined: 02 Apr 04 Location: United Kingdom Online Status: Offline Posts: 2415 |
![]() ![]() ![]() ![]() |
||
Racks will be included in the calc of "beam" to get a "righting moment" |
|||
Wanna learn to Ski - PM me..
|
|||
![]() |
|||
tornado435 ![]() Posting king ![]() ![]() Joined: 05 May 06 Location: United Kingdom Online Status: Offline Posts: 196 |
![]() ![]() ![]() ![]() |
||
Will the carbon mast penalty ever be brought back??
![]() ![]() |
|||
![]() |
|||
Scooby_simon ![]() Really should get out more ![]() Joined: 02 Apr 04 Location: United Kingdom Online Status: Offline Posts: 2415 |
![]() ![]() ![]() ![]() |
||
I very much doubt it. |
|||
Wanna learn to Ski - PM me..
|
|||
![]() |
|||
Jalani ![]() Posting king ![]() ![]() Joined: 03 May 05 Location: Great Britain Online Status: Offline Posts: 164 |
![]() ![]() ![]() ![]() |
||
The point about the CMP was that it had no real sound basis for being imposed. Just a gut feeling on someone's part that a lighter mast should be a performance gain..... In practice it seems that any gain is too small to be measured and rated consistently. |
|||
Far too old to still be doing this......
Stealth F16s "White Rhino" GBR527 & "Yeah Baby" GBR538 |
|||
![]() |
|||
Scooby_simon ![]() Really should get out more ![]() Joined: 02 Apr 04 Location: United Kingdom Online Status: Offline Posts: 2415 |
![]() ![]() ![]() ![]() |
||
There must be some gain with "less Kg up top", but as you say it was difficult to "prove" and so it was just a "gut feeling mod". With all these things there are a number of options we could do, however (my opinion for now) is that we need macro fix(s) to the rule quickly and then (if there is a need) we can look at minor tweaks later. For example we could consider adding the weight of the mast as a parameter, not just the overall weight of the boat. I repeat COULD. If there is sound science (and measurable within the rule) then we may consider it. (how amy "may's" and "could" can I get in one post |
|||
Wanna learn to Ski - PM me..
|
|||
![]() |
|||
353rob ![]() Newbie ![]() Joined: 18 Jan 06 Location: Ireland Online Status: Offline Posts: 22 |
![]() ![]() ![]() ![]() |
||
I have a lot of faith in that the new updates to beam RM and maybe the
blade area's V aspect ratio will solve the major holes in SCHRS. It
will
be interesting to see how the public react to the changes, for example
take the
H5.9 standard and the Spitfire, what will happen if the H5.9 goes up a
few points because of the narrow beam and the Spitfire now is on the
wrong side of the rounding up of the numbers and drops a few points,
will they be protest and calling foul?
|
|||
![]() |
|||
hurricane ![]() Really should get out more ![]() ![]() Joined: 15 Mar 04 Location: United Kingdom Online Status: Offline Posts: 1047 |
![]() ![]() ![]() ![]() |
||
that would annoy the spitfire boys as the boat has always rated so well as it was designed for the rules
![]() |
|||
lifes to short to sail slow boats!
RIP Olympic Tornado 1976-2007 |
|||
![]() |
|||
tornado435 ![]() Posting king ![]() ![]() Joined: 05 May 06 Location: United Kingdom Online Status: Offline Posts: 196 |
![]() ![]() ![]() ![]() |
||
Luckily I've still got my standard Hurricane. Maybe I'll use that for Handicap rather than the Tornado People will always moan about Handicaps and you can't please everybody all of the time. As long as the mods are transparant and there can be no accusation of favouritism then there can't be a problem imho.
|
|||
![]() |
Post Reply ![]() |
Page <1234> |
Forum Jump | Forum Permissions ![]() You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |