ALPA 42

ALPA 42 drawing

Sailboat Specifications


Hull Type:
Fin with rudder on skeg
Rigging Type:
Staysail Ketch
LOA:
39.37 ft
LWL:
37.57 ft
Beam:
11.25 ft
S.A. (reported):
764.00 ft2
Draft (max):
6.07 ft
Draft (min):
Displacement:
26,455 lb
Ballast:
9,920 lb
S.A./Disp.:
13.82
Bal./Disp.:
37.50
Disp./Len.:
222.71
Construction:
FG
Ballast Type:
First Built:
1973
Last Built:
# Built:
8
Builder:
Alpa (ITA)
Designer:
Sparkman & Stephens
Website:

Auxiliary Power/Tanks (orig. equip.)

Make:
Diesel
Model:
Perkins
Type:
HP:
Water:
106 gals
Fuel:
53 gals

Sailboat Calculations

S.A./Disp.:
13.82
Bal./Disp.:
37.50
Disp./Len.:
222.71
Comfort Ratio:
42.71
Capsize Screening Formula:
1.51

Rig and Sail Particulars

I:
48.25 ft
J:
14.50 ft
P:
42.86 ft
E:
13.75 ft
PY:
26.75 ft
EY:
9.00 ft
SPL/TPS:
ISP:
S.A. Fore:
349.81 ft2
S.A. Main:
294.66 ft2
S.A. Total (100% Fore + Main Triangles)
644.48 ft2
S.A./Disp. (calc.):
11.66
Est. Forestay Len.:
50.38 ft

Sailboat Links

Notes

From the same hull mold used to built the ALPA 12.7 (1969).
The tooling was later purchased by the Zuanelli yard where, with a few modifications, it became the Zuanelli 42.

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