Alco MRS-1 (Military Road Switcher) - E1670

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Data Sheet Information Compiled by: JEAN-DENIS BACHAND
Updated: 20 May 2005 MRS-1 Drawing by: Jean-Denis Bachand
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Engine Builder: American Locomotive Company Engine: V12 4-cycle Model 244D
Bore & Stroke 9" X 10.5"
RPM (Maximum / Minimum) 1000 / 350 (375)
Main Generator: GE - 581 Horsepower: 1600
Gear Ratio: 74:18 Speed: 70 mph
Trucks: 6-Wheel Configuration: C-C
Traction Motor Blowers: Two GE Model: NC390
Weight: 240,000 lbs Traction Motors: GE 752 (four)
Tractive Effort (starting) 40,000 lbs @ 25% Tractive Effort (continuous): 30,700 lbs @ 11 mph
Multiple Unit Capability: Yes Dynamic Braking: Yes
Auxilary Generator: GE GY27 Alternator: GTAPA1-6
Air Brake: Westinghouse Model: 24L
Compressor: Westinghouse Model: 2CDC
Boiler Type: : VAPOR-CLARKSON Lbs/hr: 2500
Quantity Built: 83 Dates: March-December 1953
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Exterior Dimensions MRS-1
Total Length 55'-11"
Pilot to Pilot 52'-00"
Wheel Diameter 40" / 40"
Truck Wheel Base 10'-06"
Height to Top Engine Hood 12'-02"
Height to Top Cab Hood 12'-02"
Cab Width 9'-11"
Top Walkway Width 7'-07"
Walkway Width 5'-00"
Engine Hood Width 5'-05"
Center Bolster 29'-01"
Center Front Truck to Front Pilot 8'-07"
Center Rear Tucrk to Rear Pilot 8'-07"
Distance between Truck Centers 34'-0"
Minimum Turning Radious 30 degrees
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Fuel Oil: 1300 Lubricating Oil: 200
Engine Cooling Water: 250 Sand Capacity: 28 cu. ft.
Options:
Reference Sources:
  • The Diesel Builders, Volume 2, by John F. Kirkland
  • A Centennial Remembrance by Richard T. Steinbrenner

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