As most of us know, ISAF has approved a modified SCHRS handicap system for beach catamarans.

The new ratings (and new rules) can be found here :

www.schrs.com

www.schrs.com/index.php?page=ratings


A summary gives (ordered to speed):

doublehanders :
F20 = 0.949 (OD I-20 (US) = unknown)
F18 = 1.005 (= 100.5%)
[color:"red"]F16 2-up = 1.020 [/color] (54 sec slower per hour racing relative to F18)
Spitfire = 1.035
FX-one 2-up = 1.040
Hobie 16 = 1.152

Singlehanders :
A-cat = 0.980
[color:"red"]F16 1-up = 0.994 [/color] (51 sec slower per hour racing relative to modern A-cat)
FX-one 1-up = 1.042
Shadow = 1.069
Inter 17 (F17) = 1.073 (17 sq.mtr. spi and 1.067 (19 sq. mtr. spi)
Hobie 17 = 1.136

Clearly (in this listing) the F16's are the first choice in the way of speed after the F20 and F18 when doublehanded and A-cats when singlehanded. Also the SCHRS rating now closely resembles the Texel 2006 ratings. So it doesn't make much difference which system is used now.

Personally I still think the speed difference of 92 secs per hour racing between A-cat and F18 with the A-cat being faster is a bit of a stretch.

Wouter