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Sailboat Specifications for CONTEST 31

Technical Specifications

Hull Type
Fin Keel
LOA
31.16ft.
9.5m.
LWL
23.42ft.
7.14m.
Beam
10.33ft.
3.15m.
Draft(max)
4.6ft.
1.4m.
Displacement
10500lbs.
4763kgs.
Ballast
5613lbs.
2546kgs.

Production

Designer
U. van Essen
Builder
Coniplex
Construction Material
Fiberglass
Production Start
1971
Production End
1974
Total Number Built
110

Rigging and Sails

Rig Type
Masthead Sloop
Listed Sail Area
386sq.ft.
35.86sq.m.
Fore Sail Area
222.63sq.ft.
20.68sq.m.
I
36.2ft.
11.03m.
J
12.3ft.
3.75m.
E
11ft.
3.35m.
P
29.7ft.
9.05m.
Sail to Displacement Ratio
12.92

Engine Specifications

Engine Make
Volvo Penta
Engine Model
MD2B
Engine Fuel Type
Diesel
Engine Horse Power
25

PHRF Rating

High
219
Low
255
Average
237
Source
US Sailing
More Details
Rig Dimensions

Performance Calculations

Maximum Hull Speed
6.48 kts.
Capsize Screening Formula
1.89
Sail Area/Displacement (SA/D)
12.88
(Cruiser)
Displacement/Length (D/L)
364.91
(Heavy Displacement)
Motion Comfort Ratio
26.14

Note: The performance calculations are theoretical numbers which are calculated off the specifications of the vessel and should be used for educational purposes only. For actual performance statistics contact the manufacturer of the vessel.

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