by F-line to Dudley via Park
BandA wrote:175Miles / 6:50 = 26MPH. Is that a high speed?Yes, that's pretty fast for the curves all across the corridor and some of the grades. Remember...it wasn't a demonstrator for theoretical non-stop trip times and sustained speed of the equipment done in a business vacuum, but rather a track MAS record on a wholly conventional cross-corridor freight job. The crews would've done all the normal chores of a conventional cross-corridor freight job, including pauses and slowdowns within yard limits to receive orders and hitting all the usual restricting signals en route for other on-line traffic. One big thing to also remember is that in 1940 the Hoosac Tunnel was still electrified and required a layover outside each portal to attach/detach the electric boxcabs that hauled the train through the tunnel and power up/power down the steam or diesel locos. They didn't reconstruct the vent shafts to allow for uninterrupted diesel operation until '46, so every freight including this diesel demonstrator would've had a built-in timetable pause for crossing the tunnel.