Alco's 244 V-12 Prime Mover
Utah Railway RSD-4 No. 303 shows off its newly rebuilt Alco four-stroke 244 V-12 prime mover in Martin, Utah on July 25, 1977. Alco built 36 RSD-4 locomotives between 1951 and 1952. Sadly, the 1600 HP 244 engine tarnished Alco's reputation as it had reliability issues when crankshafts were prone to failure. On a positive note, the RSD-4's six-motor design allowed better tractive effort at lower speeds when they lugged heavy coal trains over Soldier Summit.
Alco's 244 V-12 Prime Mover
Utah Railway RSD-4 No. 303 shows off its newly rebuilt Alco four-stroke 244 V-12 prime mover in Martin, Utah on July 25, 1977. Alco built 36 RSD-4 locomotives between 1951 and 1952. Sadly, the 1600 HP 244 engine tarnished Alco's reputation as it had reliability issues when crankshafts were prone to failure. On a positive note, the RSD-4's six-motor design allowed better tractive effort at lower speeds when they lugged heavy coal trains over Soldier Summit.