EQUIPMENT DESCRIPTION AND DATA
EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES
The M915A3 Tractor Truck is used to transport M871, M872, and M1062 semitrail-
ers on line haul missions.
It has a Gross Vehicle Weight Rating (GVWR) of 52,000 lb (23,608 kg) and is
equipped with a two-way oscillating, sliding fifth wheel compatible with a two-inch
kingpin. Maximum towed load on kingpin is 30,000 lb (13,620 kg).
Capabilities and Features.
While operating on Class I roads, the fully loaded M915A3 can maintain a speed of
65 mph (105 kph) on level roads and 29 mph (47 kph) while ascending a 3 percent
grade. It has a minimum turning diameter, curb-to-curb, of 53 ft 9 in (16.4 m).
Average cruising ranges at Gross Combination Weight Rating (GCWR) with a full
tank of fuel will vary based on conditions (e.g., varying loads, prolonged idle, and
climatic conditions). Cruising range is optimally 400 miles (640 km).
The M915A3 is equipped with an instrument panel mounted speedometer and
tachometer which register truck ground speed and engine speed.
The M915A3 has the following capabilities and features:
air-activated front and rear non-asbestos cam brakes with a four-channel
anti-lock brake system (ABS) to provide significantly improved handling
and braking during emergency stops
operation in temperatures from -25°F (-32°C) to +125°F (+52°C), and to
-40°F (-40°C) with arctic kit installed
start and climb capability of a 20 percent grade at GCWR in both forward
and reverse directions
fording capability up to 20 in (51 cm) deep for 5 minutes without damage or
requiring maintenance before operations can continue
two-passenger aluminum corrosion-proof cab with a 90 degree tilt-forward
hood for service accessibility
six cylinder, 12.7 liter, 430 horsepower, in-line turbocharged diesel engine
built by Detroit Diesel
Allison HD 4560P six-speed automatic transmission