H-Boat

1967
Designer
Hans Groop
Builders
Frauscher Boats
Artekno OY
Eagle Marine
Ott Yacht
Association
H-Boat Class
# Built
6000
Hull Type
Fin w/spade rudder
Construction
FG

Dimensions

Length Overall
27 3 / 8.3 m
Waterline Length
20 8 / 6.3 m
Beam
7 2 / 2.2 m
Draft
4 3 / 1.3 m
Displacement
3,190 lbs / 1,447 kg
Ballast
1,590 lbs / 723 kg
drawing

Rig and Sails

Type
Fractional Sloop
Reported Sail Area
264 ft2 / 24.5 m2
Total Sail Area
237.5 ft2 / 22.1 m2
Mainsail
Sail Area
140.5 ft2 / 13.1 m2
P
28 6 / 8.7 m
E
9 10 / 3 m
Mast Height
34 4 / 10.5 m
Foresail
Sail Area
97 ft2 / 9 m2
I
24 6 / 7.5 m
J
7 10 / 2.4 m
Forestay Length
25 9 / 7.9 m

Auxilary Power

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

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
6.09 knots
Sail Area/Displacement
19.49
good performance
Ballast/Displacement
49.97
stiffer, more powerful
Displacement/Length
161.26
light
Comfort Ratio
15.69
lightweight racing boat
Capsize Screening
1.95
better suited for ocean passages

Notes

The H-BOAT has had IYRU-international one-design status since 1987; It is the largest IYRU-keelboat class in Europe, and the second largest in the world.


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