Marklin 39911 - Union Pacific 3706 Challenger - mFX+ Digital w/ Sound - Modellbahn Collectors
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Modellbahn Collectors
Specializing in Märklin Trains & Toys
Post Office Box 1133
Great Falls, Virginia 22066

collect@modellbahn.com

   
Märklin 39911 - Union Pacific Class 3900 "Challenger" Steam Locomotive
New Tooling - Primarily Metal - Road Number 3706 - mFX+ Digital

$ 785











Photo of production model in wood presentation case.  Locomotive packaging is similar to that of the Märklin 37990 - 37996 Big Boy locomotives.
Locomotive is mounted on a wood base that is shipped with a wood presentation box, the usual gray cardboard Märklin box, and an outer brown cardboard box.






Marklin 39911 Union Pacific Challenger on cover of Märklin Full Line Catalog for 2016/2017

Gauge:
H0    Era: III

Prototype: Union Pacific Railroad (UP) heavy American freight steam locomotive from the former class 3900 "Challenger", in the converted version with an oil tender. Locomotive version with road number 3706 (former coal-fired locomotive, road number 3943). The locomotive looks as it did in the Fifties.

Model: The locomotive has an mfx+ digital decoder and extensive sound functions. Different operation sounds such as oil and water being replenished or the sounds of opening and closing the sliding windows and the ventilation hatch on the cab can be controlled digitally. The locomotive also has controlled high-efficiency propulsion with a flywheel, mounted in the boiler. 6 axles powered. Traction tires. The locomotive has an articulated frame enabling it to negotiate sharp curves. It also has Boxpok driving wheels. The headlight, backup light on the tender, and the number board and marker lights are maintenance-free, warm white LEDs. 2 smoke generators (7226) can be installed in the locomotive; the contacts for them are on constantly. The headlight, backup light on the tender, and the contact for the smoke unit will work in conventional operation and can be controlled digitally. The cab lighting and the number board and marker lights can be controlled separately in digital operation. There is a powerful speaker in the tender. An imitation coupler in a standard pocket can be mounted on the pilot at the front of the locomotive. There is a close coupling with a guide mechanism between the locomotive and tender. Steam lines on the front group of driving wheels are mounted to swing out and back with the cylinders. The locomotive has separately applied metal grab irons. There are many separately applied details. Figures of a locomotive engineer and fireman for the engineer's cab are included. Length over the couplers 42.5 cm / 16-3/4". The locomotive comes in a wooden case.

Digital Controls:

Control Unit

6021 Mobile
Station
Mobile
Station 2
Central
Station
Central
Station 3
Headlight(s) O O O O O
Smoke Generator Contact O O O O O
Steam Locomotive Operating Sounds O O O O O
Locomotive Whistle (Long Whistle) O O O O O
Direct Control O O O O O
Engineer's Cab Lighting   O O O O
Bell   O O O O
Warning Sound (Short Whistle)   O O O O
Sound of Squealing Brakes Off   O O O O
Letting off Steam     O O O
Number Board Lights     O O O
Air Pump     O O O
Water Pump     O O O
Injectors     O O O
Auxiliary Blower     O O O
Sound of Couplers Engaging         O
Rail Joints         O
Cab Radio         O
Whistle for Switching Maneuver         O
Operating Sounds          O
Replenishing Fuel         O
Replenishing Fuel         O
Sanding         O
Operating Sounds         O
Operating Sounds         O
Cab Chatter         O
Operating Sounds         O
Compressor         O

Highlights:

  • Completely new tooling, constructed mostly of metal
  • Many separately applied details
  • Striking smoke deflectors

Era II (1925 - 1945)

One-time series released in late 2016.

Additional Information:

  • The locomotive can be used on curved track with a radius of 360 mm / 14-3/16" or more, however Märklin recommends larger radii. Due to the overhang of the long boiler, signals, catenary masts, bridge railings, tunnel portals, etc. must be installed for sufficient clearance on curves. The track must be well mounted due to the heavy weight of the locomotive. The locomotive can only be run through a turntable or transfer table.
Announced: Released: Catalogue:   Discontinued:  
Summer
2016
Late
2016
Not Catalogued   Late
2016
 
        (One Time Series)  
Related Items:        


UP Big Boy 4019
w/ Smoke Deflectors


UP Big Boy 4014
Factory Weathered


UP F7 ABA & Caboose
   
37994 37995 37629 USA & Canadian Prototype   
         

Additional Photos:

       
         


Specializing in Märklin Trains and Toys
Post Office Box 1133 - Great Falls, Virginia - 22066
collect@modellbahn.com

Click Here for information on How to Order from Modellbahn Collectors.