Allison Model 250
1959 TURBOSHAFT ENGINE FAMILY BY ALLISON
Rolls-Royce 250 Series; Rolls-Royce 250-C20; Allison T63; Allison 250-C20R; Allison 250; Rolls-Royce Model 250; Rolls-Royce 250; Allison T703; Allison 250 C30; Rolls-Royce (Allison) 250-C30; Rolls-Royce Model 250-B17F/2; Rolls-Royce Model 250-C20J; Rolls-Royce 250-C20R/2; Rolls-Royce M250-B17D; Soloy-Allison 250-C20S; Soloy Turbine Pac; Rolls-Royce M250-B17F/2; Allison 250-B17D; Allison 250-B17; Rolls-Royce 250-B17F; Mitsubishi CT63; Allison 250-B17F; Allison 250-B17C; Allison Model 250-B17C; Allison Model 250-B17B; Allison 250-C20B; Allison Model 250-C20B; Allison Model 250-C28; Allison 250-C20F; Allison Model 250-B17D; Rolls-Royce T703-AD-700A; Rolls-Royce T703; Rolls Royce 250-C20W; Allison Model 250-C18; Allison T63-A-5A; Allison T63-A-5; Allison 250-C20J; Allison Model 250-C30S; Allison 250-C30; Allison 250-C47B; Allison Model 250-C47; Rolls-Royce 250-C20W; Rolls-Royce M250-C20W; Rolls-Royce M250
The Allison Model 250, now known as the Rolls-Royce M250, (US military designations T63 and T703) is a highly successful turboshaft engine family, originally developed by the Allison Engine Company in the early 1960s. The Model 250 has been produced by Rolls-Royce since it acquired Allison in 1995.