초록 ▼

Tunable sponsons for personal watercraft and personal watercraft having the tunable sponsons. The present invention provides personal watercraft having sponsons with an adjustable height relative to the water surface and the hull. One adjustable sponson has a horizontally, outwardly extending portio

Tunable sponsons for personal watercraft and personal watercraft having the tunable sponsons. The present invention provides personal watercraft having sponsons with an adjustable height relative to the water surface and the hull. One adjustable sponson has a horizontally, outwardly extending portion from the personal watercraft hull followed by a downwardly extending portion including a fin for penetrating below the water surface. The effective height of the sponson outwardly extending portion above the water can be reduced or lowered by adding a thickness of slab of material along the length under the sponson outwardly extending portion. One tunable sponson includes apertures mounted along the sponson underside for securing additional material. The effective height of the sponson horizontally extending portion above the water can be increased by removing a removable sponson extension previously secured to the sponson. The present invention further includes methods for adjusting the handling characteristics of a personal watercraft by adding and removing thicknesses of material from under the sponson.

대표청구항 ▼

Tunable sponsons for personal watercraft and personal watercraft having the tunable sponsons. The present invention provides personal watercraft having sponsons with an adjustable height relative to the water surface and the hull. One adjustable sponson has a horizontally, outwardly extending portio

Tunable sponsons for personal watercraft and personal watercraft having the tunable sponsons. The present invention provides personal watercraft having sponsons with an adjustable height relative to the water surface and the hull. One adjustable sponson has a horizontally, outwardly extending portion from the personal watercraft hull followed by a downwardly extending portion including a fin for penetrating below the water surface. The effective height of the sponson outwardly extending portion above the water can be reduced or lowered by adding a thickness of slab of material along the length under the sponson outwardly extending portion. One tunable sponson includes apertures mounted along the sponson underside for securing additional material. The effective height of the sponson horizontally extending portion above the water can be increased by removing a removable sponson extension previously secured to the sponson. The present invention further includes methods for adjusting the handling characteristics of a personal watercraft by adding and removing thicknesses of material from under the sponson. of a motor for the watercraft. 17. A method as in claim 15, wherein the solar cells are removably mountable on a tongue of a trailer for the watercraft. 18. A bilge blower as in claim 11, wherein the power is supplied from a power unit that can be locked in place on the watercraft or on a trailer for the watercraft. 19. A method as in claim 11, wherein the power is supplied from at least one dedicated battery. 20. A method as in claim 11, wherein the power is supplied from both solar cells and at least one rechargeable battery, with the rechargeable battery recharged by the solar cells when sufficient light is present. 21. A bilge blower for a watercraft, comprising: blower means for drawing air and vapor from the watercraft's bilge through a bilge drain on the watercraft; and power supply means for supplying power to the blower means.