MLW 660 hp yard units with multiple unit controls.
The only low horsepower diesels built new with m.u. were Dominion Atlantic 6560 and 6561. These two units fit in the CPR numbering for MLW 660 hp units. Other than DAR RDC's 9058 and 9059 no other diesels were lettered for any subsidiary. They were transferred to Lambton Yard in Toronto where they worked singly on yard and local jobs. After the new hump yard in Agincourt opened they worked as a pair on the Pulldown until 1974 when they were replaced by 7107 and 7108 (MLW S-4) and sent to Sutherland, Saskatchewan.
26 S-3 and S-10 units were modified (including extra weight on S-3's) 1965-1971 to operate in m.u. when increased tonnage required more tractive effort at main terminals including Thunder Bay.
6560 builders photograph. June 1956
DAR 6560_6561 fully equipped as road units including combination
pilot, chime horn and classification lights.
These units were used on gypsum trains from Dimocks to
Hantsport, NS until 1959 when heavier power was required and they were
replaced by 8100's (GMD SW1200RS).
6580-6570 m.u. elephant style. Two views. "Who is
that guy?" The crew looks at photographer as they pass by.
6580-6570 passing Saskatchewan Wheat Pool No. 8 one of the many grain elevators with lake boat in background.
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