Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Long Keel
Rigging Type: Fractional Sloop
LOA: 10.03 m
LWL: 7.32 m
S.A. (reported): 48.59 m²
Beam: 2.90 m
Displacement: 5,670 kg
Ballast: 1,935 kg
Max Draft: 1.45 m
Construction: Wood planked
Ballast Type: Lead
First Built: 1945
Last Built: 1952
Builder: Fisher Boat Works/T. Knutson (USA)
Designer: Aage Nielsen/S&S

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Auxiliary Power/Tanks (orig. equip.)

Make: Gray Marine
Model: Sea Scout 4-91
Type: Gas

Sailboat Calculations

S.A. / Displ.: 15.59
Bal. / Displ.: 34.12
Disp: / Len: 403.67
Comfort Ratio: 36.10
Capsize Screening Formula: 1.64
S#: 1.04
Hull Speed: 6.56 kn
Pounds/Inch Immersion: 814.67 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Rig and Sail Particulars

I: 10.26 m
J: 3.62 m
P: 11.58 m
E: 5.18 m
S.A. Fore: 18.56 m²
S.A. Main: 30.01 m²
S.A. Total (100% Fore + Main Triangles): 48.57 m²
S.A./Displ. (calc.): 15.59
Est. Forestay Length: 10.88 m

Sailboat Links

Designers: K. Aage Nielsen
Sparkman & Stephens
Builders: Knutson Shipbuilding Corp.
Related Sailboats: PILOT 35 (HINCKLEY)
Download Boat Record:


S&S design #539. (The first post war S&S design.)
After this first version, the PILOT class went through a number revisions. (A second version was introduced in 1959)
This version, drawn by Aage Nielsen, an S&S employee at the time, was the most popular before the introduction, in 1962, of the slightly larger HINCKLEY PILOT 35 (S&S #1727), designed specifically for fiberglass construction.
First built by Fisher Boat Works in Detroit, MI, (sometimes called FISHER PILOT 33) and later by Thomas Knutson in Huntington, NY.
The original plans showed a Gray Marine gas engine for auxiliary power.

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