Innovative Turbine Engine Propulsion Solutions for Class 3 Unmanned Aerial Vehicles

TMA Power, LLC, principles are the inventors of the microturbine engine early 1990s, propose for AF181-033 solicitation, a new turboprop (or turboshaft) power plant the TMA50(50shp) a hybrid gas turbine (HGT) engine (advance microturbine) for UAV and other aircraft application. The engine concept is from our tested TMA70(70kW) technology demonstrator (scalable 20 to 700shp).Using a patented 2 spool aero-thermal coupled configuration a high-pressure ratio staged compression is incorporated for lower fuel use at design power and improved sfc at reduced power improvement over other IC engines inclusive of a recuperated microturbine. The turbine inlet temperature <1875F offers reduced cost, improved hot section hardware durability and a reduced exhaust gas IR signature. A patented engine tested rich burn-quick quench (RQL) type combustor offer great flame stability at any power level, any fuel, low emissions and a compact combustor without special TBC coating, louvres or effusion holes for reduced cost.A unique FuelAir premix chamber with low pressure jet injection rids hot spot generation tendencies of conventional combustors. The tested overhung spool design with reduced temperature in the bearing area offers less maintenance andlowblade tip / shroud running clearance for improved rotor efficiencies.