The Allison Model 250 (now known as the Rolls-Royce M250 and designated T63/T703 in US military service) is a highly successful turboshaft engine family, originally developed by the Allison Engine Company in the early 1960s. Rolls-Royce has produced the Model 250 since it acquired Allison in 1995.
The Allison Model 250 (now known as the Rolls-Royce M250 and designated T63/T703 in US military service) is a highly successful turboshaft engine family, originally developed by the Allison Engine Company in the early 1960s. Rolls-Royce has produced the Model 250 since it acquired Allison in 1995.
Source: Wikipedia "Allison Model 250" · CC BY-SA 4.0
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