Railpictures.ca - A.W. Mooney Photo: Although just as rare as that other One-of-a-Kind CP locomotive, MLW RSD-17 #8921 that used to get the fans in some sort of a frenzy, this MLW 4744, an M-640; the only locomotive of its type in the world, probably gathered nowhere near the attention as it lead westbound CP 4568 and 4223 toward Guelph Jct. The M-640 is basically the same as the M-636, 18 cylinders vs 16, and a much larger radiator space at the rear of the hood. It was rated 4000 HP. Never went into production past this demonstrator as ALCO ended up closing shop. The CTG says it was retired in 1992 and went to the Canadian Railway Museum in 1998. | Railpictures.ca – Canadian Railway Photography

Although just as rare as that other One-of-a-Kind CP locomotive, MLW RSD-17 #8921 that used to get the fans in some sort of a frenzy, this MLW 4744, an M-640; the only locomotive of its type in the world, probably gathered nowhere near the attention as it lead westbound CP 4568 and 4223 toward Guelph Jct. The M-640 is basically the same as the M-636, 18 cylinders vs 16, and a much larger radiator space at the rear of the hood. It was rated 4000 HP. Never went into production past this demonstrator as ALCO ended up closing shop. The CTG says it was retired in 1992 and went to the Canadian Railway Museum in 1998.

Caption: Although just as rare as that other One-of-a-Kind CP locomotive, MLW RSD-17 #8921 that used to get the fans in some sort of a frenzy, this MLW 4744, an M-640; the only locomotive of its type in the world, probably gathered nowhere near the attention as it lead westbound CP 4568 and 4223 toward Guelph Jct. The M-640 is basically the same as the M-636, 18 cylinders vs 16, and a much larger radiator space at the rear of the hood. It was rated 4000 HP. Never went into production past this demonstrator as ALCO ended up closing shop. The CTG says it was retired in 1992 and went to the Canadian Railway Museum in 1998.

Photographer:	A.W. Mooney [2139] (more) (contact)
Date:	04/05/1980 (search)
Railway:	Canadian Pacific (search)
Reporting Marks:	CP 4744 (search)
Train Symbol:	not known (search)
Subdivision/SNS:	CP Galt Sub. (search)
City/Town:	Campbellville (search)
Province:	Ontario (search)
Share Link:	http://www.railpictures.ca/?attachment_id=18987

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Photo ID: 17879

Map courtesy of Open Street Map

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4 Comments

Stephen C. Host

May 8, 2015 at 10:00 pm

Happy (Belated) Birthday, Arnold
awmooney

May 9, 2015 at 7:44 am

BD???? Awhhhhh shucks…….you know those occasions now fall under ‘meaningless’ to us of retirement age. But thanks anyway.
JP

June 5, 2015 at 4:43 pm

Nice shot. It may not be the 8921, but it is an MLW.
RonaldB

September 17, 2019 at 11:54 pm

I was working a westbound following 4744 one trip & it ‘blew a gasket’ around Drumbo and leaked oil all the way to Woodstock. We had a setoff to make at Woodstock & when I was re-coupling the power onto the train I had to wade thru the big oil slick between the rails. I believe that ended up being 4744′s last trip.

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Stephen C. Host

May 8, 2015 at 10:00 pm

Happy (Belated) Birthday, Arnold

awmooney

May 9, 2015 at 7:44 am

BD???? Awhhhhh shucks…….you know those occasions now fall under ‘meaningless’ to us of retirement age. But thanks anyway.

June 5, 2015 at 4:43 pm

Nice shot. It may not be the 8921, but it is an MLW.

RonaldB

September 17, 2019 at 11:54 pm

I was working a westbound following 4744 one trip & it ‘blew a gasket’ around Drumbo and leaked oil all the way to Woodstock. We had a setoff to make at Woodstock & when I was re-coupling the power onto the train I had to wade thru the big oil slick between the rails. I believe that ended up being 4744′s last trip.