Rolls-Royce 501-D commercial turboprop model in the T56 family; Rolls-Royce identifies the 501-D as the world-leading large turboprop by units sold and the commercial version of T56 for civil aircraft.
Rolls-Royce 501-D commercial turboprop model in the T56 family; Rolls-Royce identifies the 501-D as the world-leading large turboprop by units sold and the commercial version of T56 for civil aircraft.