DeltaHawk Engines, Inc., a Wisconsin corporation, is designing and building a family of direct drive liquid-cooled diesel cycle aviation engines from 100 to 650 hp. Four-cylinder engine models (160-200 hp) are in pre-production and higher horsepower models are in development. The engines are designed to use commercial jet fuels (Jet A, Jet A-1), military diesel fuels (JP-5, JP-8) or commercial diesel fuels (including biodiesel). Type Certification of the first model is expected in 2010. DeltaHawk’s innovative light-weight fuel-efficient engines, providing turbine-like reliability at a fraction of the cost, will lead to a “green” future for general aviation.