420

1959
insignia

Dimensions

Length Overall
13 9 / 4.2 m
Waterline Length
13 1 / 4 m
Beam
5 4 / 1.7 m
Draft
0 5 / 0.2 m 3 2 / 1 m
Displacement
220 lbs / 100 kg
Ballast
?
drawing

Rig and Sails

Type
Fractional Sloop
Reported Sail Area
140 ft2 / 13 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
4.86 knots
Sail Area/Displacement
61.47
high performance
Ballast/Displacement
?
Displacement/Length
42.99
Ultralight
Comfort Ratio
2.66
lightweight racing boat
Capsize Screening
3.59
better suited for coastal cruising

Notes

One of the most successful sailing dinghies ever. (Only the SUNFISH or LASER can be considered in the same league.)
Originally designed and built by Lanaverre of France. (They built 32,000 according to one source.)
Licenses were later granted to other builders around the world.
In 1996, the International Class agreed to amend the deck layout.
1 Trapeze permitted.
Spinnaker: 97 sq.ft.
There is a ‘Club’ version of heavier construction and slightly different dimensions.


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