Technical fiche for the EMD MRS-1


Schematic drawing I

(outer side view with modifications to serve in Europe)

Schematic drawing II

('Transparent body' sideview, as presented in the Operating Manual)

General data

Model designation . . . . . . . . . . . . . . MRS-1
Type  . . . . . . . . . . . . . . . . . . . . 0-6-6-0
Horsepower  . . . . . . . . . . . . . . . . . 1600

Track Gauge (inch). . . . . . . 56-1/2", 60", 63", 66" 143.5cm, 152.4cm, 160cm, 167.6cm Length over coupler pulling faces - Standard AAR Couplers . . . . . . . . 57'5" 1750cm Willison Automatic Couplers . . . . . 57'8-1/2" 1759cm Height of center of coupler above rail - Standard AAR . . . . . . . . . . . . 34-1/2" 87.6cm Willison Automatic . . . . . . . . . 41" 104cm Height of buffer center above rail . . . . . 42" 106.7cm Height of little footplates above rail . . . 5'5-1/4" 165.7cm Height of main footplates above rail . . . . 6'3" 190.8cm Height of long hood and cabin . . . . . . . . 13'4" 406.6cm Height of short hood . . . . . . . . . . . . 12'3-1/4" 374.0cm Distance between bolster centers . . . . . . 31'0" 945cm Truck - rigid wheelbase . . . . . . . . . . . 13'2" 401.3cm Maximum width of locomotive . . . . . . . . . 9'8" 294.6cm Maximum height above rail . . . . . . . . . . 13'6" 411.5cm

Driving motors . . . . . . . . . . . . . . . 6 Driving wheels . . . . . . . . . . . . . . . 6 pair Diameter of wheels . . . . . . . . . . . . . 40" 101.6cm Size of journals . . . . . . . . . . . 6-1/2" x 12" 16.5cm x 30.5cm Gear ratio . . . . . . . . . . . . . . . . . 60/17 Maximum permissible speed . . . . . . . . . . 77 MPH 124km/h Approximate height of center of gravity . . . 57" 144.8cm Nominal power . . . . . . . . . . . . . . . . 1750 hp

Minimum curve radius (light engine) . . . . . 193' (30) 58.8m Minimum curve radius (coupled to train) . . . 274' (21) 83.5m

Total loaded weight on drivers (approx.) . . 240,000 lbs 109 tons Weight on drivers . . . . . . . . . . . . . . 100% Journal load per driving axle (approx.) . . . 40,000 lbs 18.1 tons

Fuel oil (with steam generator) . . . . . . . 800 gal. 3028 l. Fuel oil (without steam generator) . . . . . 1600 gal. 6056 l. Water capacity for steam generator (if used) 800 gal. 3028 l. Engine cooling water (approx.) . . . . . . . 210 gal. 795 l. Lubricating oil (approx.) . . . . . . . . . . 200 gal. 757 l. Sand . . . . . . . . . . . . . . . . . . . . 18 cu. ft. 0.5 cu. m.

Engine . . . . . . . . . . . . . . . . . . . 567B Diesel Engine specifications . . . . . . . . . . . . 16 cylinders . . . . . . . . . . . . V-type (angle 45 between two banks) . . . . . . . . . . . . 2 cycle Cylinder bore . . . . . . . . . . . . . . . . 8-1/2" 21.6cm stroke . . . . . . . . . . . . . . . 10" 25.4cm Fuel consumption per hour (full load) . . . . 95 gal. 360 l. (idle) . . . . . . 3.5 gal. 13.2 l. (road operat. avg.) 50 gal. 189 l.

Main alternator specifications . . . . . . . 3-phase, 149V AC, 80 kw power supply to AC traction motor blowers & engine water cooling fans Main generator production . . . . . . . . . . 600V DC

Traction motors specifications . . . . . . . DC power, 17 tooth traction motor pinion gear with a 60-tooth axle gear.