Piper's DeltaHawk-powered Seminole DX flew for the first time July 2, a Jet-A diesel trainer aimed at flight schools facing ...

OSHKOSH—Piper Aircraft has partnered with jet-fueled, diesel piston-engine maker DeltaHawk to give future buyers of PA-44 Seminoles a way to bypass the looming U.S. transition away from leaded avgas.

DeltaHawk Engines Inc.'s new DHK180 piston engine, which was FAA certified in May, is heading toward production, the company announced Monday at EAA AirVenture. According to Dennis Webb, DeltaHawk ...

OSHKOSH—Bushliner’s 1850 aircraft has been selected by DeltaHawk as the launch platform for its DHK6A350 engine. The two companies signed a Letter of Intent (LOI) formalizing the deal for the ...

RACINE, Wis. — A few wood crates on a concrete floor speak volumes about what's happened with DeltaHawk Inc., a developer of diesel aviation engines. The crates contain DeltaHawk's first ...