Rolls-Royce AE 1107C

Rolls-Royce AE 1107C, also designated T406, is an active turboshaft variant in the AE 1107 family for V-22 tilt-rotor aircraft. Rolls-Royce describes a two-shaft axial design with a 14-stage compressor, effusion-cooled annular combustor, two-stage gas-generator turbine and two-stage power turbine. The current manufacturer data sheet lists the exact AE 1107C-Liberty line at 6,150 shp (4,586 kW) and a 16.7 pressure ratio; the product page separately describes the broader AE 1107C powerplant as a 7,000-shp class, so the typed rating follows the exact model line.