Available Items

30-20815-1

O Gauge RailKing RS-3 Diesel Engine With Proto-Sound 3.0
  • U.S. Army

30-20816-1

O Gauge RailKing RS-3 Diesel Engine With Proto-Sound 3.0
  • New York Central

30-20817-1

O Gauge RailKing RS-3 Diesel Engine With Proto-Sound 3.0
  • Northern Pacific

30-20818-1

O Gauge RailKing RS-3 Diesel Engine With Proto-Sound 3.0
  • Chicago Great Western

Final 2021 RailKing RS-3 Diesel Locomotives Announced

February 9, 2021 - M.T.H. Electric Trains will be releasing several limited-edition releases of the RailKing RS-3 diesel locomotive in four different liveries this Summer. These unique releases are part of a series of products representing the last M.T.H. production runs as the company concludes its 40-year history this year. Each of these offerings is expected to arrive in August 2021.

The RailKing RS-3 is featured in the M.T.H.'s RailKing Scale product line and features 1/48th scale proportions yet operates comfortably on O-27 curves. Under the hood of the Proto-Sound 3.0 version is the same sound and control system found in all of our RailKing and Premier diesel locomotives - complete with sounds recorded from an actual Alco RS-3. Additional features include operating diesel exhaust smoke and LED lighting. If you're looking for realism and a lot of fun at a RailKing price, it doesn't get any better than this!

Check out each of the schemes in the list on the left.

product features

  • Intricately Detailed, Durable ABS Body
  • Die-Cast Truck Sides, Pilots and Fuel Tank
  • Metal Chassis
  • Metal Handrails and Horn
  • Authentic Paint Scheme
  • Metal Wheels, Axles and Gears
  • (2) Remote-Controlled Proto-Couplers
  • Prototypical Rule 17 Lighting
  • Directionally Controlled Constant Voltage LED Headlights
  • (2) Precision Flywheel-Equipped Motors
  • Operating ProtoSmoke Diesel Exhaust
  • Onboard DCC/DCS Decoder
  • Locomotive Speed Control In Scale MPH Increments
  • 1:48 Scale Proportions
  • Proto-Sound 3.0 With The Digital Command System Featuring Freight Yard Proto-Effects
  • Unit Measures: 14 1/2” x 2 1/2” x 3 3/4”
  • Operates On O-27 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