Ground support equipment: MB-4 Tow Tractor

Ground Support Equipment

MB-4 Tow Tractor

MB-4 Tow Tractor front view

The MB-4 is a medium size tow tractor designed and built by Entwistle for the U.S. Air Force. The tractor uses rugged, off-road drive line components from commercial sources, and the structure is designed by Entwistle to provide essentially infinite life under the most severe operating conditions. The MB-4 provides a drawbar pull of over 14,000 pounds.

Entwistle Model 9330
NSN 1740-01-389-4127
Production - Over 300 tractors

MB-4 Tow Tractor Control Panel

Specification Data
14,000 (62,000 Newtons) drawbar pull (nominal) Cummins diesel engine power Automatic four-speed transmission Four wheel drive Two speed transfer case with inter-axle differential	Heavy duty, off-road axles Selectable four wheel, two wheel, or crab stee 15 foot (4.5 meter) turning radius 25 mph (40 kph) maximum speed Trailer air provisions (optional) 20,000 pounds (9,100 kg) gross vehicle weight rating