Great trackside shots Of Union Pacific Big Boy locomotive 4006 and some onboard and closeup demonstrations of 4007. From the Pentrex show "Union Pacific Big Boy Collection" https://rfd.video/BBCollection | Steam Giants
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Great trackside shots Of Union Pacific Big Boy locomotive 4006 and some onboard and closeup demonstrations of 4007. From the Pentrex show "Union Pacific Big Boy Collection" https://rfd.video/BBCollection | Steam Giants
81.5K viewsJul 21, 2023
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