Jet-fueled 2-stroke diesel V-4

[freebeard]

DELTAHAWK Diesel Jet Aircraft Engine - ENGINE WEEK 2024

Low maintenance with mechanical direct injection with one pump and injector per cylinder for redundancy - no cams valves or electronics.

Dry sump lubrication and apparently the combustion air never enters the crankcase, so no oil mixture fuel and it will operate inverted or standing on it's end for a helicopter.

2600 RPM redline --with power of a four-stroke with twice the displacement-- so it doesn't need a gearbox for propellers.

[cRiPpLe_rOoStEr]

DeltaHawk took a really long time to get the FAA certification. Truth be told, I would rather rely on a gear-driven blower for an aeronautic 2-stroke Diesel engine instead of the belt-driven one, even though it an automotive derivative of this engine would ever come to fruition the belt drive would allow for a variable-speed compressor to act like an EGR somehow. And since it relies on unit-injectors, wouldn't be rocket science to fit an electronically-controlled setup for compliance to regulations that a modern truck would need to address.

[Piotrsko]

FAA failure mode testing generally insures that a semi disabled engine will maintain at least 50% rated power for 30 minutes. That's in their published specs for test but they don't test for incomplete or broken assemblies.

Not sure what turbine requirements are, but I do know about frozen duck injestion: MacDac chicken room.