Intermediate Rail Unit: Specifications

  • Width: 8' 2”
  • Overall Length: 13' 0"
  • Running Height: 54' 3" (from top of rail)
  • Wheel Base: 6' 8”
  • Weight: 14,500 lbs.
  • Normal Operating Speed: 70 mph
  • Carrying Capacity of bogie: 90,000lbs.
  • Rail Wheels: AAR J-33, class C, AAR-1B tread
  • Roller Bearings: 6” x 11” AP type Raised Wheel Seat, Class F
  • Operating Air Suspension Pressure 90-110 psi: Brake Valve ABDX valve or equivalent and 1 ¼” i.d. brake pipe with gladhands
  • Buff/Draft Capability: 400,000 lbs. (80% margin over FRA requirements) according to AAR Chapter 11 requirements
  • Brake System: NYAB TMB 60
  • Full compliant with FRA safety reqirements (FRA waiver 1999-6416)
  • Moveable by forklift trucks off and onto rail tracks

AAR test results

RailRunner is Federal Railroad Administration (FRA) compliant (FRA Permanent Waiver of Compliance #1999-6416). RailRunner equipment has successfully completed all Chapter 11 tests for the AAR M-1001 manual of standards and recommended practices.