Yamaha 25-2

1976
Designer
Yamaha/Ichiro Yokoyama
Builder
Yamaha
Associations
?
# Built
?
Hull Type
Fin with rudder on skeg
Construction
FG

Dimensions

Length Overall
24 9 / 7.6 m
Waterline Length
19 3 / 5.9 m
Beam
8 11 / 2.7 m
Draft
5 4 / 1.7 m
Displacement
3,750 lbs / 1,701 kg
Ballast
1,430 lbs / 650 kg
drawing

Rig and Sails

Type
Masthead Sloop
Reported Sail Area
298.1 ft2 / 27.7 m2
Total Sail Area
298.3 ft2 / 27.7 m2
Mainsail
Sail Area
137.6 ft2 / 12.8 m2
P
29 10 / 9.1 m
E
9 2 / 2.8 m
Mast Height
?
Foresail
Sail Area
160.7 ft2 / 14.9 m2
I
32 9 / 10 m
J
9 9 / 3 m
Forestay Length
34 2 / 10.4 m

Auxilary Power

Make
Yanmar
Model
?
HP
8
Fuel Type
Diesel
Fuel Capacity
?

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
5.88 knots
Sail Area/Displacement
19.76
good performance
Ballast/Displacement
38.22
less stiff, less powerful
Displacement/Length
234.63
moderate
Comfort Ratio
14.84
lightweight racing boat
Capsize Screening
2.31
better suited for coastal cruising

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