Athearn 25745 N Scale 4-6-6-4 Challenger w/Coal Tender UP 3997 DCC & Sound Roadname_Sounder - SDRX 6 Radio System: 2-Channel

6 Radio System: 2-Channel

Simplified Multirotor Flight Mode Setup and Switch Assignment

Will look great mounted in the fascia board on your model railroad layout

85mm Ti bumper bar 7 grams light

Athearn 25745 N Scale 4-6-6-4 Challenger w/Coal Tender UP 3997 DCC & Sound Roadname_Sounder - SDRX 6 Radio System: 2-ChannelAthearn 25745 N Scale 4 6 6 4 Challenger w Coal Tender UP 3997 DCC & Sound In the spring of 1941 UP locomotive designers began working on a locomotive to team up with the new 4 8 8 4 Big Boy's then under construction at Alco. The Big Boy's were designed to pull heavy freights up the Wasatch Range in Utah to the division point at Green River, WY. What was needed was a locomotive to take over at that point that could speed the freights eastward across