Piper brings DeltaHawk-powered Seminole DX prototype to AirVenture

Piper Aircraft is unveiling the initial flying prototype of its Seminole DX aircraft at EAA AirVenture Oshkosh 2026, marking a significant advancement in light aviation. The prototype incorporates a DeltaHawk diesel engine, representing a key component of Piper’s redesign efforts for the Seminole series. This new iteration aims to deliver enhanced performance and operational capabilities compared to previous models within the Seminole lineage. Details regarding specific performance metrics or technical specifications remain forthcoming as the prototype undergoes testing during the event. Piper's strategic move highlights their commitment to innovation and adapting to evolving market demands within the general aviation sector.