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U.P. Big Boy Heavy Freight Locomotive #T22599
Was $798.00 Now $725.00
Built specifically for North American 2-rail DC model railroaders, the Trix Big Boy #T22599 has many special features and a level of craftsmanship only found previously in brass at a much higher price.

Prototype: Union Pacific (U.P.) class 4000 "Big Boy" 4-8-8-4 design. Road no. 4015 as it looked around 1959. Use: Heavy freight trains.





Model Features:
  • H0 scale, 2-rail DC
  • Road no. 4015
  • Diecast metal locomotive frame, body, tender frame, tender body
  • High-efficiency can motor with bell-shaped armature and flywheel in the boiler
  • Driving wheels divided into two linked groups to enable the locomotive to negotiate sharp curves
  • Boxpok wheels
  • 8 axles powered, center driving axles spring mounted
  • RP 25 wheel flanges, no traction tires
  • Kadee® compatible coupler on the tender, Kadee® no. 19 coupler can be installed on the pilot. Note: The coupler pocket on the tender will also take a Kadee® no. 17, 18, 19 or 20 coupler.
  • Comes from the factory with built-in DCC decoder, decoder detects automatically whether locomotive is on a DCC layout or an analog layout
  • This decoder works with all DCC digital systems commonly available in the USA
  • Acceleration and braking delay can be programmed individually in DCC
  • Headlights, number boards lights, backup light on the tender are all maintenance-free LEDs and can be controlled digitally
  • Light in engineer's cab, maintenance-free LED, can be controlled digitally
  • Steam sound effects (steam expelled from cylinders, smoke stack exhaust, synchronized with locomotive movement and speed), can be controlled digitally
  • Steam injector sound effect can be controlled digitally
  • Whistle can be controlled digitally
  • Bell can be controlled digitally
  • The sound effects system works only in DCC
  • Smoke generator contacts (for 2 smoke generators - Seuthe no. 8, Märklin no. 0900) that are connected directly to the electrical pickups on the wheels. Note: The smoke generators must be removed from the locomotive when programming the decoder.
  • Close coupling between the locomotive and tender
  • Figures of a locomotive engineer and fireman included
  • The largest H0 steam locomotive ever built by Trix: weight approximately 2 lb 10 oz, length 18-5/16"
Important information about the operation of this locomotive: The Big Boy can be used on curved track with a minimum radius of 360 mm / 14-3/16", but we recommend larger radius curves. Due to the overhang of this locomotive's long boiler, signals, catenary masts, bridge railings, tunnel portals, etc. must be set out further from the curved track for clearance. The track must be well mounted for the high weight of the locomotive.

Historic information about the prototype: In the center of the UNION PACIFIC's route network is the steeply graded line between Cheyenne and Laramie on Sherman Hill. It goes through the Wasatch Rocky Mountains and on west to the Great Salt Lake. At the end of the 1930s the freight trains on this route became longer and faster and required time-consuming, costly doubleheading with several locomotives. A specially designed new locomotive with immense dimensions was planned to relieve this situation. The necessary high power output and the correspondingly high weight had to be translated to the rails on an articulated locomotive frame. The American Locomotive Co. (ALCO) developed a colossus with a 4-8-8-4 wheel arrangement, with a service weight of over 500 metric tons and a length of 40.5 meters or 132 feet 10-1/2 inches. This giant was respectfully named the "Big Boy" in ALCO's erecting halls. This name became the embodiment for the largest steam locomotive in the world.

A total of 25 Big Boys were built in 1941 and 1944. They were in use around 20 years in Utah and Wyoming and each one ran over 1 million miles. Eight of the Big Boys retired from the roster at the beginning of the 1960s are still in existence. They still give you an unforgettable impression of the former size.


T22810 Electric Locomotive
Was $549.00 Now $495.00
Prototype: Pennsylvania Railroad (PRR) type GG-1 heavy general purpose locomotive. 4-6-6-4 wheel arrangement. Built by General Electric and Westinghouse starting in 1934. Originally in standard Brunswick Green design with 5 decorative stripes.



Use: Freight trains and passenger trains on main lines of the PRR, later Penn Central, Conrail and Amtrak.
Model: Era II and III, die-cast metal chassis and superstructure. Digital decoder based on DCC standard with sound generator. High-efficiency motor with centrally installed bell-shaped armature. 4 powered axles in each draw frame. 4 traction tires. Articulated frame to enable unit to negotiate sharp curves with 2 sets of powered wheels and 2 sets of carrying wheels. Headlights will work in conventional operation, can be digitally controlled. Headlights, engineer’s cab lights 1 and 2, acceleration and braking delay and several operating sounds (fans, continuous bell, single whistle signal, sequence whistle signal and blowing off air, switching mechanism, main switch and brakes) can be controlled digitally with Trix Systems or DCC. High-performance speaker. Large American design pantograph. Separately applied metal grab irons. Wheel sets based on American standard RP 25. Couplers are compatible with Kadee system. Length over couplers 280 mm / 11-1/32".

Use in curved track with a radius of min. 360 mm / 14-3/16" is possible. However, we recommend a radius of 450 mm / 17-23/32" or more.
For operation beneath a catenary in a zig-zag or curved pattern, a wider contact strip may be necessary for the pantograph. A set is available with the matching attachments under item no. 231801.
An AC version of this model is available in the Märklin assortment as item no. 37490.


T22811 Electric Locomotive
Was $549.00 Now $495.00
Prototype: Pennsylvania Railroad (PRR) type GG-1 heavy general purpose locomotive. 4-6-6-4 wheel arrangement. Built by General Electric and Westinghouse starting in 1934. Originally in special Brunswick Green design with "feather stripes".



Use: Freight trains and passenger trains on main lines of the PRR, later Penn Central, Conrail and Amtrak.
Model: Era II and III, die-cast metal chassis and superstructure. Digital decoder based on DCC standard with sound generator. High-efficiency motor with centrally installed bell-shaped armature. 4 powered axles in each draw frame. 4 traction tires. Articulated frame to enable unit to negotiate sharp curves with 2 sets of powered wheels and 2 sets of carrying wheels. Headlights will work in conventional operation, can be digitally controlled. Headlights, engineer’s cab lights 1 and 2, acceleration and braking delay and several operating sounds (fans, continuous bell, single whistle signal, sequence whistle signal, blowing off air, switching mechanism, main switch and brakes) can be controlled digitally with Trix Systems or DCC. High-performance speaker. Large American design pantograph. Separately applied metal grab irons. Wheel sets based on American standard RP 25. Couplers are compatible with Kadee system. Length over couplers 280 mm / 11-1/32".

Use in curved track with a radius of min. 360 mm / 14-3/16" is possible. However, we recommend a radius of 450 mm / 17-23/32" or more.

For operation beneath a catenary in a zig-zag or curved pattern, a wider contact strip may be necessary for the pantograph. A set is available with the matching attachments under item no. 231801.

An AC version of this model is available in the Märklin assortment as item no. 37490.


T22801 "Mikado" Steam Locomotive with Tender
Was $459.00 Now $279.00

Prototype: New York Central (NYC) class H6 general purpose locomotive. United States Railroad Administration (USRA) standard design "Mikado" 2-8-2.
Model: Locomotive comes with a digital decoder for the international DCC system, controlled high efficiency propulsion and sound effects generator. High efficiency motor with bell-shaped armature in the boiler. 4 axles powered. Can be retrofitted with a smoke generator (Märklin 72270). Headlight and smoke generator contact will work in conventional operation and can be controlled digitally. Headlight is maintenance-free LED. Wheels have RP 25 profile. Speed-dependent steam locomotive sounds, whistle, and bell, simulation of squealing brakes, acceleration and braking delay can all be controlled digitally. Non-functioning prototype coupler on the front. Working American style automatic knuckle coupler on the rear. Close coupling between the tender and locomotive. Separately applied metal handrails. Many separately applied details. Figures of locomotive engineer and fireman included. Length over couplers 290 mm / 11-7/16".


T22802 Steam Locomotive with Tender
Was $459.00 Now $279.00

Prototype: New York Central Railroad (NYC) class H 6 fast freight locomotive. United States Railroad Association (USRA) standard design 2-8-2 "Mikado".
Model: Era II - III, American standard RP 25 wheels. Couplers compatible with the Kadee system. Technical features same as 22801. Different road number. Length over the couplers 290 mm / 11-7/16".

This locomotive is being produced in a one-time series.


T22803 Steam Locomotive with Tender
Was $459.00 Now $279.00

Prototype: Union Pacific Railroad class 2400 fast freight locomotive. United States Railroad Association (USRA) standard design 2-8-2 "Mikado".
Model: Era II - III, American standard RP 25 wheels. Couplers compatible with the Kadee system. Technical features same as 22801. Prototypical detail changes. Length over the couplers 290 mm / 11-7/16".

This model can be found in an AC version in the Märklin assortment under item no. 37973.


U.P. ALCO PA-1 Double Unit Diesel Locomotive #T22805
Was $469.00 Now $269.00

The mighty ALCO PA-1 is an ideal model for American passenger and freight trains. The frame and body of this stylish locomotive are constructed of metal and the impressive technology and numerous features make the ALCO PA-1 a wonderful addition to your layout.

Prototype: Union Pacific Railroad (U.P.) class 600, American Locomotive Company (ALCO) type PA-1. Use: Passenger and freight trains.



Model Features:
  • H0 scale, 2-rail DC
  • Class 600
  • Diecast metal frame and body
  • 5-pole high-efficiency motor in both units
  • Comes from the factory with a built-in DCC-Selectrix decoder for harmonized control of the two motors
  • Can also be used in analog
  • 4 axles powered
  • RP 25 wheel flanges
  • Kadee® compatible couplers
  • Special close coupling between the two locomotive units
  • Headlights and lighted number boards
  • Prototypical blinking Mars headlight
  • Length over the couplers: 18-5/16"
Historic information about the prototype: The ALCO PA-1's mighty 16-cylinder turbo-diesel produced 2,000 horsepower that was transmitted to the outer axles of the three-axle trucks. The center axles helped distribute the total weight of 140 tons. A total of 250 units of the PA-1 were built between 1946 and 1950. The Union Pacific bought eight units as the class 600 for passenger service and converted them in 1955 for freight train service by changing the driving gear. In 1964 these units were retired, and one unit was kept in service until 1968 as an experimental locomotive.

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