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