| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent operating performance, particularly turning performance or accelerating performance from deteriorating, even if a four cycle engine particularly a multi-cylinder engine is loaded as a drive source on a small-sized planing boat. SOLUTION: An air intake system device 15 is arranged on the front side in the advancing direction of an engine 6, after deriving respective exhaust pipes 21 rearward on the rear side of the engine 6, the exhaust pipe is bendingly deviated from the center to one side in the right and left width direction of a hull, further, formed to exhaust rearward in parallel with the advancing direction, and a fuel tank 7 is arranged in a space 33 between the exhaust pipe 42 bendingly deviated in rear of the engine 6 in the plane view and one side extended line 32 of a seat.</p> |
