Piper Aircraft collaborates with DeltaHawk Engines to integrate diesel power on PA-44 Seminole aircraft

Piper Aircraft, Inc. and DeltaHawk Engines have entered into a Memorandum of Understanding (MOU) to explore the integration of DeltaHawk’s diesel engine technology into Piper’s PA-44 Seminole aircraft. This collaboration signifies a joint effort to investigate the feasibility of incorporating advanced propulsion systems into Piper’s renowned aircraft models. The MOU outlines plans for the development of a Supplemental Type Certificate (STC) aimed at facilitating the installation of DeltaHawk’s Diesel engine into both new and existing Seminole aircraft. This initiative represents a dedication to exploring alternative propulsion solutions that offer improved efficiency, performance, and environmental sustainability within general aviation.


Headquartered in Racine, Wisconsin, DeltaHawk Engines specializes in advanced-design FAA-certified jet-fueled piston engines for general aviation aircraft and hybrid power systems. The company holds numerous patents for its clean-sheet engine designs and boasts a team of experts dedicated to revolutionizing piston engine technology.

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