Quote:
Originally Posted by darkmetal  Hi ppl
well you lost me again  reading about a Hunter 37 cutter
i came across all this stuff ( help  ) what does it all mean ???
1 PHRF of 155
2 SA/D - 18
3 B/D - 40%
4 D/L - 287
5 motion of comfort - 34
6 Capsize screen of 1.91
any help would be great
thanks alex |
Not knowing the exact context from which you extracted these figures, I can only offer the following:
1 - PHRF = Performance Handicap Racing Fleet - a system of using handicap performance formulae to "adjust" the racing times of dissimilar vessels. Think of the practice of placing weight in the saddles of thoroughbred horses to compensate for previous experience and race results.
2 - SA/D = Sail Area/Displacement - the ratio of the total area of a vessel's sails to the weight of the water displaced by its hull(s).
3 - B/D = Don't know what the B refers to, for certain, though I suspect it might be ballast, but the D is, again, displacement.
4 - D/L = Displacement/Length - the ratio of the weight of the displaced water to the vessel's length (probably LWL, or Load Water Line).
5 - Not familiar with this term.
6 - Probably a formula for determining at what point a vessel turns turtle (capsizes) instead of coming back onto her feet (regains an upright position), or as rebel heart puts it, has "the stick in the air."
I could be wrong on the above, and others with greater knowledge will correct me, but thought I'd try to help.
TaoJones