2010 Portsmouth Numbers - Now Out

Originally posted by I luv Wight Originally posted by Granite I had also expected a larger drop for the Cherub, when I did some calculations a few years ago I got around 930, however there were very large variations even between  boats of similar ages. It is still good that the RYA have included more classes in the list, and they do recommend that the numbers for development boats and those marked with an E are adjusted depending on the age of the boats. I was sailing locally on 925 a few years ago, '97 rules and was about the same speed as the local 29ers ( which weren't national champ level ) seemed OK at the time. The new boats 'should' be faster. But there are not that many cherubs doing the club racing for hcap returns, and there are a lot of different spec boats about, so the 950 is a reasonable average I suppose. ( ie about 10  fast boats to the latest rules, + lots of other older 'tubs' ) However the cherub performance was ( and still is ) very variable depending on wind, wave, size of course, tides etc, much more variable than most other boats. - sometimes winning by tens of minutes , and sometimes last by tens of minutes .

The very fact that new boats, could be faster will cloud the mix, like wise older boats that have not been updated will also, change the flavour..  The only real truth will be at the big handicap events!

Jon

At Wilsonian we estimated that potentially a 59er with trapeze could sail to 887, but only if the crew were slimmed down to lower weight while still retaining the same righting moment as the fatties had hiking (who we reckoned were entitled to 920).

At Willies, however, we only have one 59er with, let's say larger people onboard, who now use a trapeze. Because of their crew weight, they still have hte ame drag as before, and get to use the wire less often than a lighter pair would, so we have them on a provisional 908. If a pair of skinnies bought the boat, logically we'd revise that figure down to 887; if a second boat turned up with skinnies aboard, I guess we'd again have to use 887 as it's the boat's true potential.