#504 A.S.F.® Ride Control® 50 Ton Trucks with 33" Smooth Back Wheels - HO Scale
Metal Fully Sprung Equalized Trucks
The A. S. F.® A-3 Ride Control® 50-ton freight truck was introduced in the 1940's and is one of the forerunners of modern freight trucks. Features embodied into this design include a longer spring travel, no spring planks and constant friction control using friction castings in the bolster to dampen excessive lateral roll of the car. These design features allowed for a higher train speed with less danger of derailment than previous designs. ASF® sold over 140,000 sets by 1949. This truck is excellent for modelling the transition era up to 1994 when friction bearings were no longer allowed in interchange service.
Package Includes:
- (2) Each #504 A.S.F.® Ride Control® 50 Ton Trucks (assembled)
- (2) #441 Brake Pads - Narrow Bolster
Mounts with a #2 or 2-56 screw.
Mounting Screws not Included.
Metal Fully Sprung Trucks Features:
- Code 110 (.110) #520 33" Smooth Back Wheels
- #441 Brake Pads - Narrow Bolster
- Accurate Markings
- Incredible Detail True to Prototype
- Non-Magnetic Metal Wheels
- Highly Flexible Sprung Trucks
- Metal Sideframes & Fully Sprung Bolster
- Smooth tracking Free Rolling Contoured Insulated Plastic Axles
- RP-25 Free Rolling Wheels
- #637 HO Scale Truck Springs
- Patent numbers 5,832,837 & 5,768,999