WIG terminology

Like all technologies, WIG has its own jargon, abbreviations, acronyms and technical terms. Most of them are listed here.

ACV: Air Cushion Vehicle
AGEC: Aerodynamic Ground Effect Craft, German term for WIG boat
air injection: Russian term for PAR
c.g.: centre of gravity
cavitation: occurs when an object (foil or propeller) moves through the water at high speed, creating very low pressures, so that the water locally starts to boil
ekranoplan: Russian for WIG boat, ekran=screen plan=plane
GEM: Ground Effect Machine, synonym for ACV
hydrofoil (boat): boat with submerged wings that lift the hull out of the water at full speed
IMO: International Maritime Organisation
HSC: High Speed (marine) Craft
PAR: Power Augmentation of a Ram-wing, i.e. blowing of air under the wing to augment the air cushion
PAR-WIG: Power Augmention of a Ram Wing In Ground-effect
SES: Surface Effect Ship, also called sidewall-hovercraft, a catamaran with a static air cushion between its hulls
WIG: Wing In Ground-effect
wingship: American term for WIG boat
WISE(S): Wing In Surface Effect (Ship)