Piper explores diesel power for PA-44 Seminole | Magazine

Read the latest news

ACE 2026 - The home of global charter.

Related information from the Handbook...

• DeltaHawk Engines

• Piper Aircraft
Aircraft

• Piper twin piston

• Engine Manufacturers

• Modifications

BAN's World Gazetteer

• Wisconsin
• Florida

The bimonthly news publication for aviation professionals.

Request your printed copy

Piper explores diesel power for PA-44 Seminole

Friday, 12 April 2024

Piper's partnership with DeltaHawk Engines signifies a commitment to exploring alternative propulsion solutions that offer enhanced efficiency, performance and sustainability in general aviation.

Piper Aircraft is to explore the feasibility of integrating DeltaHawk's diesel engine into its PA-44 Seminole aircraft.

"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," says VP of engineering and manufacturing Marc Ouellet. "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."

DeltaHawk CEO Christopher Ruud adds: "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."

An MOU outlines the development of an STC for the installation of DeltaHawk's Diesel engine into both new and retrofit Seminole aircraft.

Other News

Eve secures funding from prominent US organisations

January 17, 2026

The company will use funding from EXIM Bank and PEFCO, worth up to $15 million, to procure batteries and engineering services from its supplier, BAE Systems, during Eve's eVTOL aircraft development and test phase.

Read the full report

Eve secures $40m funding as it celebrates Brazilian listing

December 11, 2025

The company has said the new financing will support electric motor integration and ANAC certification testing for its first eVTOL aircraft.

Read the full report

Eve advances eVTOL supply chain with Beta Technologies propulsion deal

December 4, 2025

Beta Technologies will provide electric pusher motors for Eve’s conforming prototypes and production aircraft as the company strengthens its supplier base and propulsion architecture.

Read the full report