Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Centerboard Dinghy
Rigging Type: Cat (unstayed)
LOA: 12.99 ft / 3.96 m
S.A. (reported): 79.00 ft² / 7.34 m²
Beam: 3.64 ft / 1.11 m
Displacement: 110.00 lb / 50 kg
Max Draft: 2.00 ft / 0.61 m
Min Draft: 0.30 ft / 0.09 m
Construction: Plywood/FG
First Built: 1959
Builder: Richmond Marine Ltd. (UK)
Designer: Ian Proctor

KLSC Leaderboard

KLSC Leaderboard

Sailboat Calculations

S.A. / Displ.: 55.08
Capsize Screening Formula: 3.04

calculation mobile

2 nd ad half width

3rd ad full width

Sailboat Links

Designers: Ian Proctor
Builders: Chippendale Boats (UK)
Richmond Marine Ltd.
Associations: MiniSail Class Association
Download Boat Record:


The inspiration for the MINISAIL and it's variants were, in part, derived from the enormous popularity of the Alcort SAILFISH and SUNFISH in the US.
According to one account, Ian Proctor first saw boats of this type on a visit to America as a journalist reporting on the Americas Cup.
A number of variations exist: (See the minisail web site, '', which covers the entire subject very thoroughly.)
A prototype was from Chippendale Boats.
Chippendale, Bossom’s Boatyard and Plycraft were licensed to produce the first MINISAIL's which were built of plywood. (flat decks and no cockpit, as was the original SAILFISH in the US).
Offered in kit form beginning in 1962?.
In 1974 Ian Proctor designed a new deck arrangement from the MINISPRINT MK1(1973) and a high performance version with a sliding seat (MINISPRINT MKII) for single-handed racing.