If UAV Turbines can produce a 80 pound turbojet that can produce 200 horsepower with a variable pitch prop, what would be the fuel burn? if fuel burn was suitable it would be a great engine for General Aviation in aircraft like a Cessna 172. The GA market would really go a long way to fund this new technology. With the price and availability of high octane aviation gas as it is today, moving to any new engine burning basic jet fuel is a great advantage. The are several small diesel engines now offered for General Aviation applications that have a low fuel flow and use jet fuel.