Alpha 48

1980
Designers
?
Builder
Adriatic Yachts (USA)
Associations
?
# Built
?
Hull Type
Keel/Cbrd.
Construction
FG w/foam cored deck

Dimensions

Length Overall
47 11 / 14.6 m
Waterline Length
37 0 / 11.3 m
Beam
13 6 / 4.1 m
Draft
4 3 / 1.3 m 6 3 / 1.9 m
Displacement
43,000 lbs / 19,504 kg
Ballast
12,000 lbs / 5,443 kg
drawing

Rig and Sails

Type
Masthead Ketch
Reported Sail Area
1,200 ft2 / 111.5 m2
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
?
Mast Height
?
Foresail
Sail Area
?
I
?
J
?
Forestay Length
?

Auxilary Power

Make
Perkins
Model
?
HP
85
Fuel Type
Diesel
Fuel Capacity
200 gal / 757 l

Accomodations

Water Capacity
200 gal / 757 l
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
8.15 knots
Sail Area/Displacement
15.64
under powered
Ballast/Displacement
27.91
less stiff, less powerful
Displacement/Length
378.98
ultraheavy
Comfort Ratio
50.71
extremely heavy bluewater boat
Capsize Screening
1.55
better suited for ocean passages

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