| 摘要 |
Small marine pleasure craft, such as jet skis, which have a tendency to "porpoise" or pitch fore and aft at cruising speeds, are provided at the aft end of the hull thereof with a ride plate and , pursuant to the invention, with a downwardly and rearwardly inclined lift or hydroplane surface on the ride plate which effectively eliminates the "porpoising" or pitching motion at cruising speeds and also enhances maneuverability and steerability of the craft at such speeds. The angle of downward inclination of the lift or hydroplane surface is quite critical, residing within a range in the order from about 3 DEG to about 6 DEG . The preferred embodiment comprises an accessory device substantially universally adaptable to existing jet skis, which is characterized by a plate having a mounting surface adapted to be secured to a jet ski ride plate and a downwardly and rearwardly inclined lift or hydroplane surface having a preferred universal angle of declination in the order of about 4 DEG .
|
