Intro to HD: Mire Resistance Calculations

RESISTANCE PROBLEM

SCENARIO & FACTS

A tractor trailer weighing 80,000 lbs requires service:

  • Front axle on Gravel Rolling – Soft
  • Drive axles on Mired – Tire Depth
  • Trailer axles on Mired – Tire Depth
  • Casualty Static Weight – 80,000 lbs
  • Trailer Axles – 17,000 lbs each
  • Drive Axles – 17,000 lbs each
  • Steer Axles – 12,000 lbs each

What is the surface resistance to be overcome if a winching method is employed?

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