Thanks for that Scooby, I couldn't find a Blade type F16 on there anywhere, it just says, "Refer F16" So what is that number, for comparison to the F18, which also says, "Refer F18"? Is it the same as the Spitfire, Uni and 2 up?
The F16 has one rating for one up and one for 2 up.
Ditto the F18.
Spitfire is only raced 2 up; if someone wants to race it one up; get an ISAF measurement certificate and you can.
(interesting, knowing that the box rule doesn't limit the daggerboard area and that the area is necessary for the rating calculation...).
We rate the dagger board at the values that provides the fastest rating.
As for the small rig F18; if you wish to sail as such, you need an ISAF measureemnt certificate to show you are sailing with the small rig in a handicap event, that certificate will have the rating on it.
