A straight-three engine (also called an inline-triple or inline-three)[1][2][3] is a three-cylinder piston engine where cylinders are arranged in a line along a common crankshaft.
Less common than straight-four engine, straight-three engines have nonetheless been used in various motorcycles, cars and agricultural machinery.
V4 replaces straight three
The 1071cc, inline, triple-cylinder configuration produces 803 pounds of thrust and pushes the boat to about 55 mph.
Its engine is still the same 993-cc sohc inline-3, producing 48 bhp at 5100 5100 rpm and 57 lb-ft torque at 3200...