Piper Aircraft said Tuesday that it has received its first U.S. order for the company’s new diesel-powered Seminole DX. Skyborne Airline Academy, based at Vero Beach Airport in Florida, ordered five of the multi-engine trainers following the aircraft’s introduction in July 2025.

The Seminole DX is equipped with DeltaHawk’s DHK4A180 compression-ignition engine and Garmin G1000 NXi avionics and is designed to offer a lower fuel burn and updated flight systems for training operations.

According to Piper, the Seminole DX provides a 35 percent reduction in fuel consumption compared to traditional avgas-powered models, along with a 32 percent increase in single-engine climb rate and a 70 percent higher single-engine ceiling.

Piper Aircraft already offers other single engine diesel models targ

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