M1 Flamethrower
Weight (filled): 70 pounds
Fuel Capacity: 5 gallons
Effective Range: 65.5 feet
Maximum Range: 141 feet
There were three variations in the wand fuel valves, and earliest models were the E1 which had a shorter pressure bottle, but were otherwise identical.
M1A1 Flamethrower
Weight (filled): 70 pounds
Fuel Capacity: 5 gallons
Effective Range: 65.5 feet
Maximum Range: 141 feet
The M1A1 is the same tank group with some improvements in valves and connections. The major change is the simplification of the wand by using a shorter barrel with no bend and simplified nozzle attached to the barrel not threaded. Pressure was slightly higher but without much increase in range
M2-2 Flamethrower
Weight (filled): 68 pounds
Fuel Capacity: 4 gallons
Effective Range: 65.5 feet
Maximum Range: 132 feet
The WWII models had hexagonal gas caps and hourglass frames. They were called theM2 or M2-2, M2 for the tank groups and -2 for the wand type.
M2A1-2 Flamethrower
Weight (filled): 68 pounds
Fuel Capacity: 4 gallons
Effective Range: 65.5 feet
Maximum Range: 132 feet
The M2A1-2 is the variation of the M2 modified during the Korean war period. These had straight sided backpack frames, vented gas caps, a cylinder sized regulator and a safety valve. These are much more common today than WWII models.
M3 Auxiliary Flamethrower
The M3 Auxiliary Flamethrower as used in Sherman and Stuart tanks during WWII. It would mount in the bow of the tank, and could be used interchangeably with the browning machine gun.
M9-7 Flamethrower
Weight (filled): 51 pounds
Fuel Capacity: 4 gallons
Effective Range: 65.5 feet
Maximum Range: 132 feet
This is the most common model used in Vietnam and is much lighter and easier to use. Tanks are commonly found, but most wands were destroyed by the military.