Tartan 37
Designer: Sparkman & Stephens
Specifications
L.O.A. ---------- 37' 4"
L.W.L. ---------- 28' 6"
Beam ----------- 11' 9"
Draft, Keel/CB:
Board up ------- 4' 2"
Board down --- 7' 9"
Draft, fin: ------- 6' 7"
Sail Area: ------ 625 square feet
Displacement: -- 15,500 pounds
Ballast: ----------- 7,500 pounds
SA/D: ------------- 16.1
D/LWL:------------ 298
Bal/Disp: --------- 48%
Power: Most were equipped with the Westerbeke 40 (37 HP) or Westerbeke 50 (41 HP) diesels.
At the left are color images of a Keel/Centerboard T37 in profile, and of the T37
accommodation plan. Thanks to Ray Durkee, #373 VELERA, who found these somewhere out there, floating around in the ether.
WESTERBEKE 50 SPECIFICATIONS
Thanks to Eric Freedman, Hull #252 KIMBERLITE, who has sent along the specifications for the Westerbeke 50.
The power curves and the written specifications appear below.
TYPE:
Four cylinder four cycle overhead valve vertical in-line diesel.
DISPLACEMENT:
110 cubic inches. Bore 3 5/32", stroke 3 1/2".
POWER:
41 HP at 3200 RPM (See power curve below.)
COMPRESSION RATIO:
21.47 : 1
WEIGHT:
460 lbs. basic engine.
FUEL INJECTION EQUIPMENT:
CAV distributor type injection pump and CAV Pintaux nozzles working in conjunction with Ricardo Comet V combustion chambers.
CYLINDER BLOCK AND HEAD:
Special cast iron mono blocks.
CRANKSHAFT:
Forged steel, counter balanced.
CAMSHAFT:
Forged steel.
CONNECTION RODS:
I section alloy steel stampings
PISTONS:
Aluminum alloy with solid skirt.
MAIN BEARINGS:
Five, tri metal, heavy duty.
LUBRICATION:
Wet sump, eccentric rotor pressure pump, camshaft driven.
EXHAUST MANIFOLD:
Fresh water cooled. Front or rear opening.
COOLING SYSTEM:
Closed circuit system, including lube oil cooler with heat exchanger mounted.
ANGLE OF INSTALLATION:
15 degrees maximum.
ELECTRICAL SYSTEM:
12 Volt negative grounded system with 55 Amp alternator.
MOUNTING:
Flexible rubber mounts on 18" centers standard.
POWER CURVES:
