The Rolls-Royce Liberty AE1107C turboshaft used by the Bell Boeing V-22 Osprey family; historical Navy material identifies the earlier T406-AD-400 designation for the same V-22 powerplant line.
The Rolls-Royce Liberty AE1107C turboshaft used by the Bell Boeing V-22 Osprey family; historical Navy material identifies the earlier T406-AD-400 designation for the same V-22 powerplant line.
The historical Navy record identifies the V-22's two T406-AD-400 turboshaft engines, preserving the predecessor designation as an alias without creating a second system.