Pyramid 660

1982
Designer
Carl Schumacher
Builder
Pyramid Boat Works
Associations
?
# Built
5
Hull Type
Fin w/spade rudder
Construction
FG

Dimensions

Length Overall
21 9 / 6.6 m
Waterline Length
18 0 / 5.5 m
Beam
6 2 / 1.9 m
Draft
3 10 / 1.2 m
Displacement
850 lbs / 386 kg
Ballast
400 lbs / 181 kg (Lead)

Rig and Sails

Type
Fractional Sloop
Reported Sail Area
200 ft2 / 18.6 m2
Total Sail Area
200.3 ft2 / 18.6 m2
Mainsail
Sail Area
130.2 ft2 / 12.1 m2
P
25 0 / 7.6 m
E
10 5 / 3.2 m
Mast Height
?
Foresail
Sail Area
70.1 ft2 / 6.5 m2
I
20 11 / 6.4 m
J
6 7 / 2 m
Forestay Length
22 0 / 6.7 m
Spinnaker
SPL/TPS
12 10 / 3.9 m
ISP
27 11 / 8.5 m

Auxilary Power

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

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
5.7 knots
Sail Area/Displacement
35.66
high performance
Ballast/Displacement
47.06
stiffer, more powerful
Displacement/Length
64.21
Ultralight
Comfort Ratio
5.98
lightweight racing boat
Capsize Screening
2.62
better suited for coastal cruising

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