1920-01-01

ADAPTING TRUCK AND TRACTOR ENGINES TO MOTOR-BOAT USE 200021

The automobile engine, as used in passenger cars and a large percentage of trucks, is not adapted to use in motor boats. It is not built substantially enough for this, inasmuch as the power output of the motor-boat engine, except during starting or landing, is always 100 per cent. In view of this and because tractor, truck and marine engines are of the same family, it appears that if a truck or tractor engine were made with 100 per cent continuous power output capacity it would be satisfactory for marine use.
The author describes and illustrates a tractor engine modified for marine use. The lubrication system of this engine is explained. The respective merits of right and left-hand engines are discussed. It is stated in a twin-screw boat that it is unnecessary to have both engines run out-board; that both can turn in the same direction without causing material difference in results. The sliding reverse gear used in connection with the marine engine described is illustrated and its merits enumerated.

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