It is thought that the WEST WIGHT POTTER 19 is an extended version of the HMS 18, built from the same tooling.

Australian ‘Trailer Sailer’, designed to IOR rule.

Additional information has been promised. (03/15)

From designers drawings.
Plans offered, completed boat or in kit form.
Shorter rig:
I: 9.08m
J: 2.7m
P: 9.0m
E: 3.9m
ISP: 9.71m

MINI 6.5 class racer.

Displacement (loaded) 9.335 kg (20,580 lbs)
Sails areas:
Mainsail: 69.8 m²/751′
Jib: 50.6 m²/545′
Spinnaker: 190 m²/2045′
Holding tanks: 121 ltr/32 gal.
CE Category:A (Ocean)
Deck Design Concept: H. Miesbauer Yacht Design
Interior Design: Snøhetta, Oslo – Norway

Trailerable (lifting keel) One-design class seen mostly in Sweden and Norway.
Sailed normally with a crew of 3.
SA:
Mainsail: 17.2 m2/185 sq.ft.
Jib (self tacking)7.3 m2/78 sq.ft.
Gennaker 38.0 m2/409 sq.ft.

Area:
Mainsail: 4.70 m²
Genoa: 2.50 m²
Spinnaker assym.: 12.30 m²

Lifting keel is aluminum plate with lead bulb, which can also be adjusted forward and aft inside a trunk.
Seen mostly in Germany.