PRR Man posted:when the PRR built the T-1, it ran only on Lines West as it could not negotiate the curves or clearances found on the eastern region. the same would be true today.
That was initially true of the two prototype engines, 6110 and 6111. They had trouble negotiating the tight curve between the west end of the Pittsburgh station and the Allegheny River bridge. The "production" models 5500 - 5549 had no such restriction and operated from Harrisburg to Chicago and Harrisburg to St. Louis throughout their brief careers.
There are loads of photographs showing T1s at Harrisburg, exchanging trains with GG1s.
Within a year or two the restrictions on 6110 and 6111 went away, after the curve at Pittsburgh was reconfigured.
The S1 was never able to traverse that curve and spent her entire career between Crestline and Chicago.
The Q2 duplex freight engines were utilized between Conway yard near Pittsburgh and Chicago or Rose Lake Yard in East St. Louis.
All classes could run through the Pittsburgh area to reach Altoona for shopping, either via the Conemaugh Line or the Ohio Connecting Bridge, Monongahela Division trackage and the Port Perry bridge. Both routings bypassed the troublesome Pittsburgh curve and the passenger station. Photographic evidence exists of Q2s pulling freight around Horseshoe Curve, possibly while working their way back to Conway after shopping at Altoona.
All that being said, anyone who thinks they will see a T1 in the future at 126+ MPH should probably not get behind the wheel of a car or operate heavy machinery.
