Elan 31 (J&J)

1983 — 1989
Designers
J&J Design
Niels Jeppesen
Builder
Elan Yachts
Association
Half Ton Class
# Built
1000
Hull Type
Fin w/spade rudder
Construction
FG

Dimensions

Length Overall
30 10 / 9.4 m
Waterline Length
25 1 / 7.7 m
Beam
10 9 / 3.3 m
Draft
5 6 / 1.7 m
Displacement
7,720 lbs / 3,500 kg
Ballast
2,650 lbs / 1,200 kg (Iron)
drawing

Rig and Sails

Type
Fractional Sloop
Reported Sail Area
408 ft2 / 37.9 m2
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
?
Mast Height
?
Foresail
Sail Area
?
I
?
J
?
Forestay Length
?

Auxilary Power

Make
Volvo
Model
?
HP
18
Fuel Type
Diesel
Fuel Capacity
17 gal / 64 l

Accomodations

Water Capacity
40 gal / 151 l
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
6.71 knots
Sail Area/Displacement
16.72
good performance
Ballast/Displacement
34.29
less stiff, less powerful
Displacement/Length
217.83
moderate
Comfort Ratio
18.49
lightweight racing boat
Capsize Screening
2.19
better suited for coastal cruising

Notes

From IOR 1/2 ton prototype.


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