The "TT" designation indicates "Tall Tail". The aircraft has higher landing gear, allowing the engine to be placed on the vertical center of gravity, which eliminates pitch changes with throttle application.
The Eagle TT was derived from the low-landing gear equipped Amax Eagle and was designed to comply with amateur-built aircraft rules. It features a single main rotor, a single-seat open cockpit without a windshield, tricycle landing gear without wheel pants and a four-cylinder, liquid-cooled, four-stroke, single-ignition 1100NaN0 Subaru EA81 automotive engine in pusher configuration.
The aircraft fuselage is made from welded 4130 steel tubing with some aluminum parts. Its two-bladed rotor has a diameter of 261NaN1. The aircraft has a typical empty weight of 410lb and a gross weight of 850lb, giving a useful load of 440lb. With full fuel of the payload for the pilot and baggage is 368lb.
The standard day, sea level, no wind, take off with a 1100NaN0 engine is 1000NaN0 and the landing roll is 100NaN0.
The manufacturer estimated the construction time from the supplied kit as 100 hours.