Definition(s)
Wing-In-Ground (WIG)
The term “Wing-In-Ground (WIG) craft” means a multimodal craft which, in its main operational mode, flies in close proximity to the surface by utilizing surface-effect action.
Source: IMO Resolution A.910(22), Amendments to the Convention on the International Regulations for Preventing Collisions at Sea, 1972, 22 January 2002, International Maritime Organization. Legislation