Magnum Evolution Quarter Ton

1976 — 1981
Designer
Julian Everitt
Builder
Evolution Yachts Ltd.
Association
Quarter Ton Class
# Built
9
Hull Type
Fin w/spade rudder
Construction
FG

Dimensions

Length Overall
27 4 / 8.4 m
Waterline Length
20 6 / 6.3 m
Beam
8 11 / 2.7 m
Draft
4 11 / 1.5 m
Displacement
4,010 lbs / 1,818 kg
Ballast
1,200 lbs / 544 kg (Lead)

Rig and Sails

Type
Fractional Sloop
Reported Sail Area
274 ft2 / 25.5 m2
Total Sail Area
274.3 ft2 / 25.5 m2
Mainsail
Sail Area
153.2 ft2 / 14.2 m2
P
28 1 / 8.6 m
E
10 10 / 3.3 m
Mast Height
?
Foresail
Sail Area
121.1 ft2 / 11.3 m2
I
25 5 / 7.8 m
J
9 6 / 2.9 m
Forestay Length
27 2 / 8.3 m

Auxilary Power

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

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
6.07 knots
Sail Area/Displacement
17.38
good performance
Ballast/Displacement
29.95
less stiff, less powerful
Displacement/Length
207.64
moderate
Comfort Ratio
14.6
lightweight racing boat
Capsize Screening
2.27
better suited for coastal cruising

Notes

Quarter Ton design that is still raced successfully in the revival Quarter Ton Cup.


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