Presented is an improved Surface Effect Ship (SES) that offers the high
efficiencies of the pressurized air cushion supported generic flexible bow and
stern seal SES but without the generic SES's shortcomings that are due largely
to its 80 percent total hull width flexible bow and stern seals. This is accomplished
in the instant invention by use of forward extending rigid bow members positioned
both sides of a pressurized hull supporting gas cushion where the width of the
sidehulls make up a majority of the width of the instant invention improved surface
effect ship with the remainder, less than 35 percent of vessel width normally,
made up by a gas cushion forward seal member disposed between the bow members.
Gas cushions may extend forward into undersides of the sidehull bow members to
further reduce wetted area resistance. Longitudinally oriented fluid fences may
be incorporated to at least partially separate portions of the gas cushion and
thereby dampen pressure perturbations in the gas cushion(s). A third bow member
may be utilized between port and starboard sidehulls.