DeltaHawk Engines is hardly a newcomer to AirVenture. It’s been showing the progression of its Jet-A 4-cylinder engine for a couple of years, but at this year’s show it’s expecting FAA certification by the end of 2019, and showed up with the 180-HP variant of the engine on a Cirrus. DeltaHawk has been making sizable improvements to the engine, and in this video Dennis Webb gave Larry Anglisano an update on the project and an overview of the latest tech.