Installation of turbofan propellers.

Installation of the Hartzell propeller model HC-B4TN-5F/T10173AN(B,K)-12.5.

Installation of full turning contoured engine exhaust stacks

Installation of various propeller electrical de-icer models

Installation of Electronics Int'l digital automatic engine analyzer.

Installation of modified ram air engine induction system (Option I or Option II).

Installation of AlliedSignal Aerospace TPE331-10AV Engines and Hartzell HC-B4TN-5F/T10173AN(B, K)-12.5 Propellers

Installation of Pratt & whitney Canada PT6A-42 Engines.