Click to open image viewer. In June 1958, Allison was awarded a contract by the Air Force (managing it for the Army) to design and develop the Model 250 (military designation T63) engine. Designed as ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. In June 1958, Allison was awarded a ...

Rolls-Royce Corp. and the Timken Co. have announced an alliance designed to increase Timken's technology and service capabilities for Allison Model 250 helicopter turboshaft engine parts and component ...