Sea Spray 18

1971
Designer
Kirke Leonard
Builders
?
Associations
?
# Built
?
Hull Type
Catamaran Twin Cbrd.
Construction
FG

Dimensions

Length Overall
18 0 / 5.5 m
Waterline Length
17 8 / 5.4 m
Beam
7 10 / 2.4 m
Draft
0 7 / 0.2 m 2 3 / 0.7 m
Displacement
320 lbs / 145 kg
Ballast
?
drawing

Rig and Sails

Type
Frac. Sloop (Rotating Spar)
Reported Sail Area
220 ft2 / 20.4 m2
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
?
Mast Height
?
Foresail
Sail Area
?
I
?
J
?
Forestay Length
?

Auxilary Power

Make
?
Model
?
HP
?
Fuel Type
?
Fuel Capacity
?

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
5.63 knots
Sail Area/Displacement
75.24
high performance
Ballast/Displacement
?
Displacement/Length
25.89
Ultralight
Comfort Ratio
1.76
lightweight racing boat
Capsize Screening
4.63
better suited for coastal cruising

Notes

No discernible relation to the SEA SPRAY 15 catamaran (1966).


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