Maximum firing range, feet (43 m). Feed system, 1 () Napalm infused gasoline tank (fuel) 1 Nitrogen tank (propellant). Sights, None. The M1 and M1A1 were portable flamethrowers developed by the United States during World. is to Boba Fett. Specifically, some of his technology. And while it concludes jetpacks aren’t quiet there yet, the flamethrower is. Check this out. The flamethrower started as what seemed like a throwaway joke on hole in SpaceX’s parking lot — or perhaps, more correctly, 16 feet below.

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Development of the weapon began in July The first prototype had the designation of E1. The prototype was further refined into the E1R1 model, which resulted in the adopted M1 model in August These man-portable weapons saw little tnrower in Europe.

They were more common in the Pacific, where they were used extensively when attacking pillboxes and fortifications. The M1’s unreliability and lack of developed tactics resulted in flamf failure of the first flamethrower attack on a Japanese fortification in December The M1 was gradually replaced by the M1A1 in Flam M1A1 was replaced by the M2 flamethrower later during the war.

The M1A1 had a backpack configuration with a fuel tank that consisted of two upright bottles. A third, smaller upright bottle, the propellant tank, was located between the fuel tanks. The backpack had a high-pressure valve. The nozzle of the weapon was located at the thrrower of a long, thin pipe, which was connected to the backpack via a hose.

The pipe was slightly bent at the nozzle end. The nozzle had a hydrogen-powered ignitor. The long and thin cylindrical hydrogen tank was attached parallel to the pipe.

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A battery provided the spark needed to ignite the hydrogen. The hydrogen flame then ignited the fuel, which was forced out of the fuel tank through the hose and out of the nozzle by the propellant pressure flamd a valve was opened. The valve lever rett located at the other end of the pipe, at the junction of the hose and the pipe.

World War I saw the initial deployment of flamethrower systems.

Flamethrower – Wikipedia

The Germans fielded the Kleinflammenwerfer and Wex flamethrower unit to complement its specialist battalion stormtrooper units and tactics.

Used first in a battle on July 30, at Hooge in Flandersthe Germans surprised the British and French forces in an assault that inflicted almost casualties. The British and French responded in kind with the fielding of flamethrower systems copied from the Germans. Initial uses of the weapon startled opposing forces, but tactics were developed to counter flamethrower elements including concentrated fire on known flamethrower positions and keeping safe distances.


The Americans experimented with and developed flamethrower systems during the war, but were curtailed by the signing of the armistice.


The previously aforementioned tactics against their deployment and the extreme danger of the flamethrower system contributed to the American forces regarding it as a total failure. The efficacy of the blitzkrieg and deficiency of corresponding flamethrower capability prompted the secretary of war to charge the CWS on August 12, to develop a fert system.

Initial tests by the engineer board deemed the weapon not ready for military operations. The Chemical Warfare Service worked to redesign flaws in the E1’s design, including an ability to fire from a prone position, dropping gas pressure levels, and weight to produce the E1R1, contracted through the Gett Company, in March These experimental versions were issued to soldiers at training camps and witnessed a few of the E1R1 being used in combat.

The M1 was developed from test board suggestions, resulting in a heavier but more rugged American flamethrower system; the weapon system was manufactured in March and saw deployment by the end of the year to the South Pacific theater.

With the invention of Napalm and its significantly improved flamethrowing distance, two to three times as far as the M1’s, the flamethrower M1 platform needed to be adjusted to meet the higher operating pressure necessary to maximize the projection of napalm. E1 Designated as Experiment 1 flae the fall ofthe initial model consisting of four main components: The E1 had a single fuel tank vertical cylinder with two compartments, an upper and lower compartment.

M1 flamethrower

The upper compartment contained pressurized nitrogen that pushed the five gallons of fuel oil in the lower compartment through the barrel and into the flame gun. The fuel system for the E1 consisted of either diesel oil, fuel oil, or blends of gasoline and oil.

An igniter, consisting of a compressed hydrogen throwwer and battery, was attached to the flame gun.

The flame gun had two triggers, dispense fuel and ignition of fuel as it exited the metal barrel. Weighing in at 70 pounds when filled, the E1 was capable of ranges from fourteen to twenty-one yards.

Issues – engineer board tests identified that the fuel-compressed gas reservoir was impractical, prone position firing was difficult, and as the E1 was firing, gas pressure decreased in the upper compartment tank lowering gas pressure to push the fuel in the lower compartment through the flame gun, thereby reducing weapon range. Additional issues were identified with the dependability, weight, and maneuverability of the E1 flame thrower system.


The compressed nitrogen was separated away from the fuel reservoir, a feature carried forward in all subsequent models. Additional improvements included the flame gun, valves, and ignition system.

The E1R1’s filled weight was reduced to 57 pounds fla,e was capable of sustaining 15 to 20 yards for 15 to 20 seconds; the E1R1 weighed 28 pounds when empty. Issues – Weight, easily damaged flme, and access to the control valves were identified during testing as being problematic. M1 Test board results led to the development of the M1 production model, consisting of a heavier weight, the M1 was more rugged and had a longer trower as standardized for production in March The M1 system made it to the Throwdr Pacific theater by the end of the year.

M1A1 The invention of napalm led to its evaluation as a flamethrowing agent. Gasoline and oil mixtures sprayed as it thrwoer the barrel of the flame gun, whereas napalm thickened fuel left the barrel in a compact stream capable of ricocheting off of and into openings and subsequently sticking to flat surfaces. Initial tests showed that the current M1 platform was incapable of providing the ideal range with napalm. The Chemical Warfare Service was asked to adapt the napalm fuel system to the M1 platform to avoid procurement issues, thus facilitating the development of the M1A1 platform.

Modifications included the fuel system, pressure regulator, valves, and the flame gun to facilitate the higher pressures required to achieve ideal ranges with the napalm. The M1A1 was capable of reliably firing to distances fifty yards away versus the M1’s ideal firing range of twenty yards.

D-Day saw the fielding of flamethrowers, of which flamethrowers were recovered on the shore as they were abandoned when their users slogged through the waters to reach the German ramparts. From Wikipedia, the free encyclopedia. Retrieved 4 January Army Military Flaem Site.

Retrieved 3 January The Chemical Warfare Service: Army Center Of Military History. Mk 2 M7 grenade launcher. Retrieved from ” https: Views Read Edit View history. This page was last edited on 16 Decemberat By using this site, you agree to fety Terms of Use and Privacy Policy.

M1A1 flamethrower being used against a Japanese bunker, March United States Philippine Commonwealth Philippines.