| Chicago Burlington & Quincy Railroad Baldwin VO-1000 9352 presumed at Eddystone, Pennsylvania sometime in November 1943, print by H. L. Broadbelt, Chuck Zeiler collection. Delivered to the CB&Q around November 1943 (c/n 70103), this was one of 30 VO-1000's the Burlington was allotted by the War Production Board during World War II. It was retired in May 1966. Introduced in 1939, a total of 548 VO-1000's were produced until this model was superseded by the DS-4-4-1000 in 1946. During 1945 Baldwin made several changes to the VO exhaust system design. Originally, the VO's had a single stack, offset to the left in front of the cab. During the first half of 1945, this was changed to two stacks, and later it became four stacks; equally spaced on the VO-1000 and grouped in pairs on the VO-660. In service it had been found that the single stack created excessive heat around the main generator. The two-stack design cured that problem, but heat expansion caused cracks in the exhaust manifold. The four-stack design cured the cracking problem. |