| Re: 2004 Portsmouth Numbers
[Re: dave mosley]
#35024 07/08/04 02:19 PM 07/08/04 02:19 PM |
Joined: Jul 2001 Posts: 800 MI sail6000
old hand
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old hand
Joined: Jul 2001
Posts: 800 MI | Hi- The D CLASS -- I think the original ISAF classifications for cat design were the A B C and D classes based on basic graduated length beam sail area specs. This was the most logical way to compare and race various new cat design . The A class still exists in its nearly original form though believe the original A class sail area was 170 sq ft instead of 150 now --the larger sailors would be more partial to the original -basic A specs are -single handed 150 SA 18 FT lENGTH 7.5 FT BEAM -now a 160 LB min boat weight added - The B class -10 ft beam --20 ft lENGTH -230 S A WAS TAKEN OVER BY THE EXCELLENCE OF THE TORNADO DESIGN -for Olympic trials and has been the Olympic cat since - C Class cats --Little Americas Cup -etc developed wings and numerous innovations in design --basic specs are 300 sq ft sail area -25 ft length -14 ft beam The D Class specs are 32 ft L -and max 500 sq ft sail area --The benifit of developement type classes based on basic specs are obvious in the innovative creative aspects and wonderfull boat design created as result as the current A Class exemplifies ,- Similar Formula type class categories are a return to this basic classification for racing ,--though more limited developement in scope per each classes rule variations ,- MFG one design classes are great too -but I for one prefer the innovation of design and modifications allowed per individual preference and creative innitiative per developement classes . The main reason multihuls were and are built !!to innovate and make them faster and safer for sailing enthusiasts that enjoy speed that multihulls can achieve.-- If OD is your main consern or objective ,-race a mono that limit speed similarly and go slow all the same --this is also indicative of the problem with Porthmouth system handicap rating ,-it works for monos to some extent due in part to limitations of monohull speed ,-but speed differences are far greater on cats and again multihulls main reason historically for being built as innovative speed sailing craft that can be developed to be continually faster and safer for those sailing them .- In other words ,-the old Hobie 18 is great ,-but much prefer A Formula 20 with spin snuffer and my own innovations and preferred set up . sorry -a little too wordy and opinionated --as usual all the best Carl | | | Re: 2004 Portsmouth Numbers
[Re: Keith]
#35026 07/08/04 04:47 PM 07/08/04 04:47 PM |
Joined: Jun 2001 Posts: 3,116 Annapolis, MD Mark Schneider
Carpal Tunnel
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Carpal Tunnel
Joined: Jun 2001
Posts: 3,116 Annapolis, MD | Hi Keith
Best I can figure is that the Tiger class rule sets a min crew weight of 308 and uses the large spin and jib of the F18 class...
The F18 rating is based on a 325 min crew weight or carrying lead to make it up.
So... I think the rating should be faster then the F18 using the L1 rating.
What do you think!
crac.sailregattas.com
| | | Re: 2004 Portsmouth Numbers
[Re: Keith]
#35027 07/11/04 10:22 PM 07/11/04 10:22 PM |
Joined: Jul 2001 Posts: 364 Andrew
enthusiast
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enthusiast
Joined: Jul 2001
Posts: 364 | Because the Tiger races under two sets of rules; "F-18" is the same as the Nacra F-18 and all the other F-18's on the water, and "hobie tiger one-design" is a different set of rules, cause hobie is better, don't ya know?
Andrew Tatton
Nacra 20 "Wiggle Stick" #266
Nacra 18 Square #12
| | | Re: 2004 Portsmouth Numbers
[Re: BRoberts]
#35033 07/15/04 07:38 AM 07/15/04 07:38 AM |
Joined: Feb 2004 Posts: 3,528 Looking for a Job, I got credi... scooby_simon Hull Flying, Snow Sliding.... |
Hull Flying, Snow Sliding....
Carpal Tunnel
Joined: Feb 2004
Posts: 3,528 Looking for a Job, I got credi... | As an aside, If you want tosee D class cats in action, there is a short segment in the 1999 Film 'The Thomas Crown Affair' - Linky to the IMDB The catamaran that Thomas Crown is seen racing in Long Island Sound is a D-Type Catamaran, an extremely fast and highly unstable yacht design from the 1980s. The D-Type's were designed by California based aeronautical engineers to try to break inshore multihull speed records. Today there are only a handful of them left in the world
F16 - GBR 553 - SOLD I also talk sport here | | | Re: 2004 Portsmouth Numbers
[Re: scooby_simon]
#35034 07/15/04 08:44 AM 07/15/04 08:44 AM |
Joined: Jun 2001 Posts: 12,310 South Carolina Jake
Carpal Tunnel
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Carpal Tunnel
Joined: Jun 2001
Posts: 12,310 South Carolina | "unstable"...kills me. Try that much sail area on a 40' monohull and I'll show you unstable!
Jake Kohl | | |
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