MTH 20-21631-1 - RS-11 High Hood Diesel Engine "Louisville & Nashville" #955 w/ PS3
MTH 20-21631-1 - RS-11 High Hood Diesel Engine "Louisville & Nashville" #955 w/ PS3
MTH 20-21631-1 - RS-11 High Hood Diesel Engine "Louisville & Nashville" #955 w/ PS3
MTH 20-21631-1 - RS-11 High Hood Diesel Engine "Louisville & Nashville" #955 w/ PS3
MTH 20-21631-1 - RS-11 High Hood Diesel Engine "Louisville & Nashville" #955 w/ PS3

MTH 20-21631-1 - RS-11 High Hood Diesel Engine "Louisville & Nashville" #955 w/ PS3

SKU: 20-21631-1
Sale price
$ 499.95
Regular price
$ 559.95
You save
$ 60.00 (11%)
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Product Information

Announced Date: June 2022
Released Date: June 2023
Individually Boxed: Yes
  • Road Name: Louisville & Nashville
  • Road Number: 955
  • Product Line: Premier
  • Scale: O Scale
  • Intricately Detailed, Durable ABS Body
  • Die-Cast Truck Sides, Pilots and Fuel Tank
  • Metal Chassis
  • Metal Handrails and Horn
  • (2) Handpainted Engineer Cab Figures
  • Authentic Paint Scheme
  • Metal Wheels, Axles and Gears
  • (2) Remote-Controlled Proto-Couplers
  • Prototypical Rule 17 Lighting
  • Directionally Controlled Constant Voltage LED Headlights
  • Lighted LED Cab Interior Light
  • Illuminated LED Number Boards
  • Lighted LED Marker Lights
  • (2) Precision Flywheel-Equipped Motors
  • Operating ProtoSmoke Diesel Exhaust
  • Onboard DCC/DCS Decoder
  • Locomotive Speed Control In Scale MPH Increments
  • Proto-Scale 3-2 3-Rail/2-Rail Conversion Capable
  • 1:48 Scale Proportions
  • Proto-Sound 3.0 With The Digital Command System Featuring Freight Yard Proto-Effects
  • Unit Measures: 14 7/8” x 2 1/2” x 4 1/16”
  • Operates On O-31 Curves 
Diesel DCC Features
  • F0 Head/Tail light
  • F1 Bell
  • F2 Horn
  • F3 Start-up/Shut-down
  • F4 PFA
  • F5 Lights (except head/tail)
  • F6 Master Volume
  • F7 Front Coupler
  • F8 Rear Coupler
  • F9 Forward Signal
  • F10 Reverse Signal
  • F11 Grade Crossing
  • F12 Smoke On/Off
  • F13 Smoke Volume
  • F14 Idle Sequence 3
  • F15 Idle Sequence 2
  • F16 Idle Sequence 1
  • F17 Extended Start-up
  • F18 Extended Shut-down
  • F19 Rev Up
  • F20 Rev Down
  • F21 One Shot Doppler
  • F22 Coupler Slack
  • F23 Coupler Close
  • F24 Single Horn Blast
  • F25 Engine Sounds
  • F26 Brake Sounds
  • F27 Cab Chatter
  • F28 Feature Reset


The RS-11 was Alco’s answer to the hugely popular Electro-Motive Geep. Alco had, after all, invented the road switcher: a multipurpose engine with great visibility fore and aft, capable of anything from slow-speed switching to full-throttle mainline hauling. And in the late 1940s and early ‘50s, Alco’s pioneering RS-1 and RS-3 had sold well. But Alco’s 1600 hp model 244 motor had acquired a reputation for unreliability, and the Electro-Motive GP7 and GP9, copying the road switcher concept, became the runaway best-sellers of first-generation diesels.

One wonders today if Alco’s problem was really its motor or EMD’s commanding sales lead. Back in World War II, EMD had been the only company permitted to manufacture road diesels, and shop crews nationwide had learned to service the EMD 567 prime mover. Perhaps a lack of familiarity led to lesser-quality maintenance of Alco motors; as evidence, Alco fans today point to the New Haven, an all-Alco railroad that got great service from its Alco fleet while others complained.

In any case, the RS-11 addressed the reliability issue with a new Model 251 V-12 motor, offering 50 more horsepower than the contemporary GP9. At least a dozen Class 1 railroads in the U.S., Canada, and Mexico bought the new engine after it was introduced in 1956. Some used it in passenger service with an optional train heat boiler. Later a low-nose version with better forward visibility was offered. But while the RS-11 was a good locomotive, the race had already been lost. Sales numbered in the hundreds while Geeps sold by the thousands. Some RS-11 orders were simply fallout from EMD’s success — when they couldn’t make Geeps fast enough, Alco got the overflow orders. While Alco soldiered on for another decade, introducing its Century series of locomotives, the RS-11 turned out to be the last Alco diesel that sold in significant numbers.

This RS-11 can offer stiff competition for the Geeps and F-units on your railroad - or, like the prototype, you can mix them together in lashups, thanks to Proto-Sound 3.0 technology. Our RS-11 features the distinctive notched-nose look of its prototype, separately added grab irons and windshield wipers, illuminated number boards, etched metal safety tread on the frame walkways, legible builders plates, remote Proto-Couplers front and rear, the authentic chant of an Alco prime mover, four pickup rollers for stall-free running on virtually any track work, and Proto-Speed Control for tremendous pulling power at any speed from a crawl to full throttle.

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