Beta Marine

Beta Marine

Sailboat Specifications

Hull Type: Centerboard Dinghy
Rigging Type: Fractional Sloop
LOA: 16.75 ft / 5.11 m
LWL: 15.83 ft / 4.82 m
S.A. (reported): 135.00 ft² / 12.54 m²
Beam: 6.50 ft / 1.98 m
Displacement: 575.00 lb / 261 kg
Max Draft: 3.50 ft / 1.07 m
Min Draft: 0.58 ft / 0.18 m
Construction: FG
First Built: 1972
Builder: Ocean Yachts / Sumner Boat Co. (USA)
Designer: Johann Tanzer

KLSC Leaderboard

KLSC Leaderboard

Sailboat Calculations

S.A. / Displ.: 31.28
Disp: / Len: 64.71
Comfort Ratio: 4.56
Capsize Screening Formula: 3.13
Hull Speed: 5.33 kn
Pounds/Inch Immersion: 367.66 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Sailboat Links

Related Sailboats: TANZER 16
Download Boat Record:


The ISLANDS 17 is most likely a 'splashed' copy of the TANZER 16 with a reverse transom giving it a slightly longer waterline length. Those who have seen both boats have all commented on the striking similarity, especially in the case of earlier boats by Ocean Yachts. The later version, built by Sumner, (also called SUMNER ISLANDS 17), has a cockpit liner with added flotation as well as number of other modifications.
Thanks to 'Dave from Maine' for additional information on this yacht.

Both companies were located on Long Island, NY, USA

Sumner Boat Co. was located at:
334 South Bayview Ave.
Amityville NY. 11701