FS2004/FSX Contract Air Cargo C-54M (Dc-4) FS2004/FSX Contract Air Cargo C-54M textures only for the Douglas C-54/ Dc-4 v3.0 Skymaster by Jens B. Kristensen. This livery; N4989K Contract Air Cargo (IFL Group) 1992-96, is an ex USAAF 44-9093. Sold to Aero Union in 1978. In 1979 it still wore the remnants of its USAF scheme. Later to Contract Air Cargo, when to Saicam Air (Zimbabwe) 1996. Repaint by Dag Farestveit.