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D&RGW #50 Narrow Gauge Locomotive

Denver & Rio Grande Western #50 Switching Locomotive in 2.5" Scale

D&RGW #50 Locomotive

D&RGW 50, a tiny 2-axle, 30-ton Davenport diesel, was the only narrow gauge diesel locomotive that the Rio Grande actually owned. (They tried several Army diesel on the narrow gauge lines, but never owned any of them.) The unit, purchased from the Sumpter Valley in 1963, produced 160hp from its Caterpillar D17000 engine, with power coupled to the wheels through a mechanical transmission.

The unit was used to switch the Durango yard from its purchase in 1963 until the abandonment of the San Juan Extension in 1970. At that point, it was sold to the Roaring Camp & Big Trees near Santa Cruz, California. Last running in the early 1970s, the engine was eventually sold to the Colorado Railroad Museum in 1984.

The engine is preserved at the Colorado Railroad Museum today, and was returned to operation in June 2009.

Davenport Locomotive Works of Davenport, IA, produced all manner of industrial locomotives. R.M.I.'s 2 1/2" scale models are based on Davenport's 25-35 ton units. These locomotives are built in both 0-4-0 and 0-6-0 configurations, as were the originals. Our units are offered in both electric and gas/hydraulic versions.

Locomotive Features

D&RGW #50 Locomotive
  • Solid riveted cab
  • All steel construction
  • Axle-mounted, heavy duty industrial gear boxes
  • 1/2 hp, continuous-duty, 4-brush 24Vdc motors
  • Solid-state programmable control and power modules
  • Options:

Locomotive Specifications  
Man VS D&RGW #50 Locomotive size comparison
Standard Features 0-4-0 0-6-0
Number of 5/8 HP motors 2 2
Powered Axles 2 3
Power Module Rating 160 Amp 160 Amp
Battery Positions 2, 4, or 6 2, 4, or 6
Length 49" 49"
Width 20" 20"
Height 30" 30"
Approx. Wt. w/o Batteries 220 lbs. 225 lbs.
Approx. Wt. w/ Batteries 295-445 lbs. 330-480 lbs.
  Also available as a gas/hydraulic unit powered by a Honda 9 hp electric-start engine, hydrostatic pump and one hydraulic motor. Also available as a gas/hydraulic unit powered
by a Honda 9 hp electric-start engine, hydrostatic pump and one hydraulic motor.
D&RGW #50 locomotive Rear Quarter View
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