Classes and Class Signals:

 

Class 1 - Squibs - R

 

Class 2 - Superfast (PY 750 or below) - B

Tornado
Hurricane SX
Hurricane 5.9
F18
A Class
49er

Int Moth

F20

 

Class 3 - Symmetric Catamarans - A

Shearwater
Unicorn
Dart 16
Dart 18
Hobie 14
Hobie 16

 

Class 4 - Fast Dinghies - H

B14

ISO
RS400 / 500 / 600 / 700 / 800
Musto Skiff
Laser 4000 / 5000
29er
470
505

K6
Hornet
Sailboard

 

Class 5 - Slow Dinghies - O

K1

420
Phantom
Snipe
Wayfarer / Wayfarer World
Laser / 4.7 / Radial / 2000 / 3000
Laser Bahia
RS200 / RS Vario / RS Vision / RS Feva

 

Class 6 - Cadets - Y

Cadet

Topper

Open BIC

 

Class 7 - Oppie - Z

Oppie

 

Cruisers - F