Certification flight testing begins in November 2025, with FAA certification expected in the third quarter of 2026.
DeltaHawk
DeltaHawk disrupts the GA engine world
Design an inverted V-4 piston engine, run it on jet fuel as a diesel, and do your polite Wisconsin best to be a disruptor in the general aviation aircraft engine world. That might be the mission statement for DeltaHawk, builder of the FAA-certificated DHK180A4.
Work begins on diesel-powered Seminole
On opening day of the 2024 SUN ‘n FUN Aerospace Expo, officials with Piper Aircraft said they are partnering with DeltaHawk Engines to explore the feasibility of integrating DeltaHawk’s diesel engine into Piper’s PA-44 Seminole.