FSX – Douglas C-117D Skytrooper v1 beta. The C117D Skytrooper or Super DC-3 was a medium-range transport serving with the US Navy and Marines. The package includes a VC adapted from the Basler BT-67. Model features include a realistic slow radial engine start, a fuel and payload manager, and built-in engine stress and battery failures. Sound is aliased to the default DC3 (replacement sound pack recommended in the readme). Historical research by John Detrick, models by Manfred Jahn, flight dynamics by Alexander M. Metzger, gauges, animations, and failure conditions by Hansjoerg Naegele; watch those failure conditions!