S&S design #2481. Available in a number of different keel and rig configurations.
At least one other version of this same design was built in Italy as the ZUANELLI 40.

Keel/cb version:
BD: 8.42′
BU: 4.75′
Shoal draft fixed keel: 4.3′
Tall Mast:
I: 53.0′
J: 16.0′
P: 47.5′
E: 14.0′

A center cockpit versions was also available.
(See ENDEAVOR 38 CC.)

Alternate Tall Rig:
I: 52.0′
J: 17.0′
P: 46.0′
E: 15.0′

Keel/cb model also available.
Draft (BD): 8.40’/2.56m
Draft (BU): 4.60’/1.40m
Displacement: 14725 lbs./ 6679 kgs.
Also available with fixed shoal draft keel: 6.00’/1.83m

Deep keel: 6.83’/2.08m
Std. keel: 6.58’/2.01m
Shoal draft: 5.00’/1.52m

TALL RIG:
I: 53.00’/16.15m
J: 15.50’/ 4.72m
P: 47.20’/14.39m
E: 16.50’/5.03m
Tot. SA: 800.15 ft2 /74.33 m2

Available as a sloop or ketch. Sometimes referred to as the GULFSTAR CSY 50 though it was never built specifically for or by CSY, most originally went into the charter trade.
Ketch rig:
I: 50.90′ / 15.51m
J: 19.10′ / 5.82m
P: 43.08′ / 13.13m
E: 15.29′ / 4.66m
PY: 27.00′ / 8.23m
EY: 11.00′ / 3.35m
Sail Area (100% fore+main triangles): 963.94 ft2/89.55 m2
Tall sloop:
I: 55.00′ / 16.76m
J: 19.10′ / 5.82m
P: 47.50′ / 14.48m
E: 19.00′ / 5.79m
Sail Area (100% fore+main triangles): 976.50 ft2/90.72 m2

Shallow draft version: 5.3’/1.62m.
Later models came with a Mercedes 42 hp diesel.

Tall Rig:
I: 54.8’/16.70m
J: 15.8’/4.82m
P: 49.9’/15.21m
E: 16.0’/4.88m
A version with a reverse transom became the PASSPORT 41.