> So was the reason the Montgomery 15 won due to it having a 125% Genoa
> compared to the 50% storm jibs of the p15's. I noticed for the big boat
race
> that Jerry won using a 110% Lapper over an Mont.17 and P19 with 150%
> Genoa's. How would inquisitive minds come to a conclusion regarding these
> descrepidating (that word almost broke my spellchecker) facts!
>
> Dave L
Hi Dave,
Maybe, but maybe not. The Monty 15 is three hundred pounds heavier than the
Potter 15. Even with the small 23 foot jib, the P15 has a "sail area
to Displacement" ratio of about 0.18, while the M15 has an SA/Disp of about
0.13.
I think it's clear that the P15 was much faster upwind than the M15, but much
slower downwind.
Take a look at these two items:
My page on the modern "hull speed" equation at <A
HREF="http://members.aol.com/jblumhorst/hullspeed.html">How Fast IS a West
Wight Potter? A New Look at Hull Speed.</A>
My post on the race and the various sail areas, displacements, LWL's at <A
HREF="http://www.cruisecortez.com/webbbs/trailersailor/index.cgi?read=38834">R
e: Sail area, LWL, displacement</A>
Best,
Judy