This page gives details of some of the aircraft types that were offered or promised to the Kuwait Air Force but not delivered, cancelled official orders, and types have been falsely reported as being in service.
Agusta AB204B Iroquois
Six examples reported in service 1968-1978. Probably confusion with the AB205s actually used.
Boeing AH-64A Apache
16 ordered in 1994, but cancelled in 1996.
Lockheed Martin C-130J Hercules
Four C-130J reportedly ordered in 2000.
Sikorsky UH-60L Blackhawk
16 ordered in 1996, but cancelled in 1997.