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Specifications
Model
Reduction Gear System
SD20 SD50 SD50-4T
Constant mesh gear with dog clutch Cone clutch
Direction Of Rotation Input Shaft Counterclockwise viewed from stern Propeller Shaft Counter-clockwise viewed from stern Counter-clockwise or clockwise viewed from stern
Reduction Ratio Ahead 2.64 2.32 Astern 2.64 2.32
Propeller Speed (rpm) Lubrication System Lubricating Oil Capacity 1364 1293 1337 Oil bath type Standard Unit 2.2 L (2.3 qt) 2.2 L (2.3 qt), SD40: 1.8L (1.9 qt) Long-Reach Unit 2.5 L (2.4 qt) 2.35 L (Extension 58) [2.5 qt], 2.45 L (Extension 100) [2.6 qt]
Dry Weight 30 kg (66 lb) 39 kg (86 lb) 41 kg (90 lb)
Remote-Control Device
Control Head Single control lever Cable MORSE 33C (equivalent) Applicable Engine Model (Maximum Rated Output Power At Crankshaft) 1GM10C: 6.7 kW (9.1 hp) / 3600 rpm 2YM15: 10.3 kW (14 hp) / 3600 rpm 3YM20: 16.2 kW (22 hp) / 3600 rpm 3YM30: 22.1 kW (30 hp) / 3600 rpm 3JH4CE: 28.7 kW (39 hp) / 3000 rpm
4JH4ACE
39.6 kW (53 hp) / 3000 rpm 3JH5CE: 28.7 kW (39 hp) / 3000 rpm 4JH5CE: 39.6 kW (53 hp) / 3000 rpm 4JH4-TCE: 55.2 kW (75 hp) / 3200 rpm
Note: A propeller with rubber bushing must be used in all SD series Sail-Drives. Note: 1 hp metric = 0.7355 kW
