The flame gun of the Model 41 is the same as that used in the earlier types of German portable flame throwers. The jet of fuel is ignited by a hydrogen flame, which itself is ignited by a battery-actuated electric device. The hydrogen cylinder, 16 inches long and 1 1/2 inches in diameter, is mounted on the flame gun.
The rubber fuel hose, which has an inside diameter of approximately 1 inch, is wire-braided on the outside. The fuel tank and the pressure cylinder, each charged with compressed nitrogen, are 13 inches long, their diameters being 7 inches and 5 inches, respectively.
Both containers are carried on the operator's back, in a horizontal position and with the pressure cylinder placed above the fuel tank. The fuel valve, which controls the flow of fuel to the flame gun, is so placed that the operator can rotate the hand wheel with his left hand.
Military Intelligence Service, 𝘗𝘰𝘳𝘵𝘢𝘣𝘭𝘦 𝘍𝘭𝘢𝘮𝘦 𝘛𝘩𝘳𝘰𝘸𝘦𝘳𝘴 (𝘎𝘦𝘳𝘮𝘢𝘯); Intelligence Bulletin Vol. II, No. 8
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