ALCO C636

ALCo built their most powerful single-engined unit, the 3,600hp C636, from 1967-1968.  Of the 34 total units built, Conrail inherited 15 of the ALCo 251E V16-powered units from the Penn Central.  They were numbered in CR series 6781-6794.

CR 6781 Cleveland, OH 08-18-1978

Former Penn Central and Erie Lackawanna units team up for ore train service at Cleveland, Ohio August 1978. CR 6781 is ex PC C636 6331 and CR SD45-2 6666 is ex EL 3681.

CR 6782 Gallitzin, PA 5/28/1978

A big Alco is trailing unit on a Westbound as it passes under Jackson St. Not the best shot, but I was never able to catch too many of these big units operating so I always shot them no matter where I saw them.

CR 6783 At Port Richmond Philadelphia, PA, 5/20/1979

Big Blue Alco C-636 #6783 is ready to roll at Port Richmond. 5/20/1979.

CR 6783 Cleveland, OH 04-12-1979

A pair of former Penn Central Alco's charge up Westinghouse Hill after crossing bridge 1 in Cleveland. C636 6783 and C630 6770 are westbound this April day in 1979.

CR 6785 Hornell, NY 7/1/1978

Looking like a big dinosaur, 6785 dwarfs the auto in the foreground, the crewman, and the stored cars in the background.

CR 6788 Cresson, PA 3-27-1978

One of Alco's monster C636's, ex-PC 6788, follows CR U33C 6577 (ex-EL 3314) as they pull through Cresson, PA in March, 1978.

CR 6788 Cresson, PA 3-27-1978

Ex-PC C636 6788 follows a U36C as they pull through Cresson, PA in March, 1978.

CR 6788 Pitcairn, PA 10-8-1977

Monster Alco CR C636 6788 (ex-PC 6338) rests between assignments at Pitcairn in October, 1977.

CR 6789 Secaucus, NJ 3-1-1979

CR C6363 6789 makes it's way east to Croxton in March, 1979.

CR 6789 Secaucus, NJ 3-1-1979

A monster C636 6789 rests at the Croxton engine terminal in March, 1979.

CR 6789 Secaucus, NJ 3-1-1979

An unlikely pairing at the Croxton engine facility in March, 1979.   Monster C636 6789 is coupled to ex-EL GP-7 5972.

CR 6789 Secaucus, NJ 3-1-1979

A monster C636 6789 coupled up with GP-7 5972 rests at the Croxton engine facility in March, 1979.

CR 6789 Secaucus, NJ 3-24-1979

Ex-PC C636 6789 made it all the way east to Croxton yard in March, 1979.

Previously, I spotted only two of these monsters anywhere east of their Conway and Mingo Junction homes. In 1977, CR 6791 rolled through Abrams, PA and in 1978, CR 6788 rolled through Cresson, PA. But seeing a C636 in CR blue in NJ, and in 1979, was a great surprise.

CR 6789 Secaucus, NJ 3-24-1979

The nose of a monster! CR 6789 C636 rests at the Croxton engine facility in March, 1979.

CR 6791 King of Prussia, PA 2-21-1977

Massive Alco C636 6791 (ex-PC 6341) heads up a mixed freight through Abrams along with PC GP-35 2380.

CR 6791 King of Prussia, PA 2-21-1977

Trailing typical Alco smoke, massive CR 6791 C-636 drags a mixed freight out of Abrams along with PC GP-35 2380.

CR 6791 King of Prussia, PA 2-21-1977

Before leaving Abrams in February, 1977, CR C-636 6791, and mate PC GP-35 2380, were backing up their line of cars.

Even on that dreary day, the massive Century impressed by belching out what Alco’s did best!

CR 6791 King of Prussia, PA 2-21-1977

Massive ALCo C636 6791 works with PC GP-35 2380 at Abrams yard in February, 1977.

CR 6791 King of Prussia, PA 2-21-1977

Massive ALCo C636 6791 readies to pull a mixed freight out of Abrams yard with PC GP-35 2380 in February, 1977.

CR 6791 King of Prussia, PA 2-21-1977

A lot of CR traffic, interesting consists, and easy access attracted railfans to Abrams yard in February, 1977.

Here, Alco's massive C636 6791 (ex-PC 6341) attracted a few of those railfans.

CR 6791 King of Prussia, PA 2-21-1977

Before heading out of Abrams with their mixed freight, CR C636 6791 (ex-PC 6341) moves light with PC GP-35 2380.

CR 6792 Kent, OH 02-19-1979

A westbound has pulled into the former EL yard in Kent, Ohio on a cold but sunny Feb 1979 day. Units 6792, 8151, and 7744 would spend most of the day here waiting on a rested crew. Big Alco C636 6792 has less than a year to go as an operating engine on Conrail, but she looks good this day in clean blue.

CR 6792 Sayre, PA 6/24/1979

A big, blue, C-636 idles at the service area in Sayre.

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