ATHG98971 Union Pacific UP 4-6-6-4 Challenger Steam Locomotive #3985 with DCC Sound Rolling-Stock 130mm High

130mm High

See what animals you can see out on the savannah

Mini brush with PBT fibres is conveniently located within the brush body

reinforcing rods and pipes

TC-105 Cutter uses standard cutter blades

ATHG98971 Union Pacific UP 4-6-6-4 Challenger Steam Locomotive #3985 with DCC Sound Rolling-Stock 130mm HighUnion Pacific 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 the Wyoming Division. Building on their experience with the