ATHG98971 Union Pacific UP 4-6-6-4 Challenger Steam Locomotive #3985 with DCC Sound Rolling-Stock This particular model is based

This particular model is based on Vulcan B2 XM607

In these turnouts the stock-rails are wired to the centre-rails at the factory

reinforcing rods and pipes

Inspection Pit for Code 75 Universal Standard Track

Suitable for extending the Coal Depot (Ref 532) or as a stand alone item

ATHG98971 Union Pacific UP 4-6-6-4 Challenger Steam Locomotive #3985 with DCC Sound Rolling-Stock This particular model is basedUnion 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