An O Scale Switching Layout

Helotes Switching Company Serving Helotes, Texas Industrial Area

Category: Locomotives

Posts about the Locomotives currently working the Helotes Switching Company layout.

END SW-1500 Diesel Electric Switcher Locomotive

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The second locomotive on the Helotes Switching Company layout is the SW-1500. The EMD SW-1500 was a 1,500 hp (1,119 kW) Diesel-electric locomotive intended for switching service and built by General Motors’ Electro-Motive Division between June 1966 and January 1974. 808 examples were constructed.

ALCO RS-27 Diesel Electric Road Switcher Locomotive

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One of the two locomotives on the Helotes Switching Company layout is the RS-27.

The ALCO RS-27 (specification DL-640) is a diesel-electric locomotive built by ALCO between December 1959 and October 1962. Only 27 examples were manufactured. With ALCO’s introduction of the Century Series line, the C-424 (specification DL-640A) replaced the RS-27 in the builder’s catalog. Today, the Minnesota Commercial Railway has the only two RS-27s left in existence, both operational. Four of the original demonstrators (#’s 640-2 through 640-5) were purchased by the UP in September 1961 and numbered 675-678. They were retired by the UP in 1971.

There is an older review of this MTH engine in the 2002 issue of Classic Toy Trains.