WAVE PUMPING AND ITS EFFECTS ON THE DESIGN AND OPERATION OF AIR-CUSHION SHIPS.
NAVY MARINE ENGINEERING LAB ANNAPOLIS MD
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Wave pumping is defined as the variation of plenum-air volume andor pressure caused by the passage of waves through the air-cushion plenum of an air-cushion or surface-effect ship. These studies indicate that, to maintain constant deck height smooth ride when operating with adverse wave-pumping conditions, a large high-speed air-cushion ship will require a plenum-air-supply system having approximately half the power of the propulsion system. If the plenum-air-supply system does not adequately compensate for wave-pumping effects, the air-cushion ship will experience heave vibrations which may be intolerable for on-board personnel or it may descend into the water with resulting large increase in drag. Author
- Surface Effect Vehicles and Amphibious Vehicles