Patent ID: 7020044

Claim:
An apparatus for producing a gaseous vapor baffle comprising: a support strut having a ventilation duct, at least one ventilation port, and a portion that is configured to be joined to a craft, said support strut comprising a first portion that is generally vertically oriented, and a second portion that outwardly extends from said first portion, said second portion extending to a distal end portion; a cavitator joined to said support strut to produce a sheet cavity that intersects said support strut as the draft travels through a liquid medium; a device to generate pressurized gas and inject said pressurized gas into said ventilation duct of said support strut so that said pressurized gas exits said at least one ventilation port and expands said sheet cavity to form a gaseous vapor baffle as the craft travels through the liquid medium; and a noise isolation device in said first portion wherein said gaseous vapor baffle comprises a position between said craft and said noise isolation device.