Matilda 20

1971
Designer
Robert Tucker
Builder
Ouyang Boat Works
Associations
?
# Built
?
Hull Type
Lifting Keel
Construction
FG

Dimensions

Length Overall
19 5 / 5.9 m
Waterline Length
16 4 / 5 m
Beam
7 10 / 2.4 m
Draft
0 9 / 0.2 m 4 2 / 1.3 m
Displacement
1,550 lbs / 703 kg
Ballast
300 lbs / 136 kg
drawing

Rig and Sails

Type
Masthead Sloop
Reported Sail Area
177 ft2 / 16.4 m2
Total Sail Area
177.2 ft2 / 16.5 m2
Mainsail
Sail Area
83.2 ft2 / 7.7 m2
P
20 9 / 6.3 m
E
8 0 / 2.4 m
Mast Height
?
Foresail
Sail Area
94 ft2 / 8.7 m2
I
23 5 / 7.2 m
J
8 0 / 2.4 m
Forestay Length
24 10 / 7.6 m

Auxilary Power

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

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
5.41 knots
Sail Area/Displacement
21.14
high performance
Ballast/Displacement
19.35
less stiff, less powerful
Displacement/Length
158.9
light
Comfort Ratio
8.75
lightweight racing boat
Capsize Screening
2.74
better suited for coastal cruising

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