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Sailboat Guide

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Sailboat

420

1959

Dimensions

Length Overall
13.78 ft / 4.20 m
Waterline Length
13.17 ft / 4.01 m
Beam
5.42 ft / 1.65 m
Draft
0.50 ft / 0.15 m 3.17 ft / 0.97 m
Displacement
220 lb / 100 kg
Ballast
?
drawing

Rig and Sails

Type
Fractional Sloop
Reported Sail Area
140.00 ft2 / 13.01 m2
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
Mast Height
Foresail
Sail Area
?
I
J
Est. Forestay Len.
?

Spinnaker

SPL/TPS
ISP

Auxilary Power

Make
?
Model
?
HP
?
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
less stiff, less powerful
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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