Joshua Lionel Cowen Series Union Pacific 4-8-8-4 Big Boy Picture yourself in 1942 standing atop Sherman Hill in Wyoming alongside the Union Pacific mainline. In the distance there's a whistle, and then the characteristic eight beats per revolution–it has to be an articulated steamer. As the noise grows louder, you see a mighty 4-8-8-4 Big Boy come into view, pulling a 70 to 80 car freight train at an amazing 50 m.p.h. The massive Union Pacific Big Boy is the fastest and heaviest single-expansion steam locomotive ever built. UP Vice President Otto Jabelman's Department of Research and Mechanical Standards solved the need for doubleheading, helpers, and splitting long freights. A magnificent piece of railroad engineering, the American LocomotiveCompany (ALCo) produced 20 Big Boys in 1941 and another five in 1944. In service, the Big Boys primary territory was west of Cheyenne, Wyoming onSherman Hill and in Utah's Wasatch Mountains. The Lionel Union Pacific Big Boy premieres the introduction of the Legacy System–the next generation of TrainMaster Command Control. Big Boy #4004, built in 1941, appears with the prototypical pilot-mounted air brake radiators and two from 1944–#4023 and #4024–feature accurate pilots as well. The 14-wheel centipede tender features a removable coal load and an auger at the bottom of the coal bunker.



TMCC II Legacy equipped—able to run in Command Control Mode or in Conventional Transformer Control Mode

Odyssey System for speed control with ON/OFF switch

RailSounds 5.0 sound system with custom recorded effects including:

Multi-part CrewTalk dialog and TowerCom announcements to create realistic operating scenarios from pulling out of the yard to initiating an emergency stop, in both conventional and command control environments

Realistic operator-controlled effects, including the water injector, activated by the CAB-1 Remote Controller

Prototypical four chuffs per revolution

DynaChuff synchronized chuffing that shifts through 15 levels of intensity as the locomotive gains speed

Simulate the locomotive running light or battling against a heavy load by manually adjusting the DynaChuff intensity with CAB-1 commands

MultiWhistle effect simulates blows at different steam pressures, long and short attacks, and even extra quilling with each press of the whistle button

Independently adjustable volume control—use the CAB-1 Remote Controller to lower the level of background effects such as chuffing while keeping operator-controlled effects such as the whistle at full volume

FatBoy speaker for the ultimate in sound reproduction

High-torque Pittman® motor with momentum flywheel

Wireless Tether connection between locomotive and tender

Directional lighting including operating headlight and back-up light

Illuminated classification and marker lights

Illuminated number boards

Removable smoke stack hood

Die-cast metal locomotive body, frame and trucks

Scale front coupler with interchangeable O gauge coupler for double-heading

ElectroCoupler on rear of tender

Traction tires

Synchronized fan-driven smoke unit with adjustable smoke output

Separately applied metal details

Accurate separately applied builder's plates

Opening cab roof hatch

Illuminated cab interior with painted gauges, valves and walls

Variable ashpan glow

Flickering firebox in cab

Cab window glass

Engineer and fireman figures

Die-cast metal tender body and trucks

Individually opening tender water hatches reveal easy-to-access RailSounds controls

Opening coal bunker doors

Removable coal load lifts away to reveal auger detail in coal bunker

Minimum Curve: O-72

Big Boy - 10/07


Rail Line: Union Pacific

Road Number: 4024

Gauge: Standard O Scale

Brand: Lionel

Min Curve: O-72

Dimensions: Approx. Length: 32"

Most Recent Catalog: Classic Trains Vol. 2 2006

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