Please forgive the formatting error. This data represents over two years of racing point to point races and buoy races on Pensacola Bay out of PYC and PBYC.
Very primitive research/analysis - but it's a starting flag for mixing small yacht club fleets in order to encourage participation. Hell, experimenting with the ratings will only lead to evolution and provide drama.
Sample PHRF Wind Speed Adjustments for mixed fleet - drop mark/buoy racing* (PHRF Time on Time only)
Boat Design BN 2-3 BN 4 BN 5-6 BN 7+ (take the wife, dogs, and kids home)
J 29 123 120 117
Tripp 26 114 117 120
Elliot 770 111 114 120
Benetau 36.7 72 69 66
Melges 32 15 18 21
Melges 24 96 93 96
Corsair 24 87 84 78
F – 25 C -18 -21 -24
Corsair 28 R 21 18 15
Corsair S 750 27 33 36
Farrier 31 -21 -27 -30
NACRA 20 -48 -54 -45
Formula 18 -39 -45 -51
Formula 16 -30 -39 -36