Engines

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

Piper Aircraft collaborates with DeltaHawk Engines to integrate diesel power on PA-44 Seminole aircraft
Piper Aircraft Inc., based in Vero Beach, Florida, is known for offering efficient and reliable single and twin-engine aircraft globally.

Piper Aircraft, Inc. and DeltaHawk Engines have signed a MOU to explore the integration of DeltaHawk’s diesel engine technology into Piper’s PA-44 Seminole aircraft investigating the feasibility of incorporating advanced propulsion systems. 

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.

“We are thrilled to collaborate with Piper Aircraft on this exciting project,” said Christopher Ruud, CEO, DeltaHawk. “Our advanced Diesel engine technology has been developed to meet the evolving needs of the aviation industry, and we see tremendous potential in integrating it into Piper’s PA-44 Seminole. This partnership underscores our commitment to driving innovation and sustainability in aviation,” he further added.

Piper Aircraft Inc., based in Vero Beach, Florida, is known for offering efficient and reliable single and twin-engine aircraft globally. Piper holds the distinction of being the first general aviation aircraft manufacturer to certify Garmin Autoland. The company’s aircraft lineup includes the M-Class series for business and personal use, the Personal Class aircraft balancing performance and efficiency, and the Trainer Class aircraft designed for pilot training, including the Seminole.

“We are excited for this collaboration to install the DHK engine into the Seminole for many reasons, especially knowing the reliability of DeltaHawk’s engines,” said Marc Ouellet, VP of Engineering and Manufacturing, Piper Aircraft. “We are constantly seeking opportunities to innovate and advance our aircraft offerings. Working with DeltaHawk on this project aligns with our mission to explore cutting-edge technologies that can deliver significant benefits to our customers and the industry as a whole,” he further added.

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This collaboration between Piper Aircraft and DeltaHawk Engines represents a strategic move towards exploring innovative propulsion systems for general aviation. It underscores both companies’ commitment to advancing technology, enhancing aircraft performance, and promoting sustainability in aviation.