Katerina Swanson
Flamethrowers are weapons that spread fire by launching burning fuel. They have been used in warfare since ancient times, with the earliest flamethrowers dating back to the 5th century BC. These early flamethrowers were long tubes filled with burning solid materials such as sulfur or coal. Modern flamethrowers were first used during World War I, and their use became more widespread in World War II. The M1 and M1A1 flamethrowers, developed by the United States during World War II, had a fuel tank capacity of five gallons. Today, flamethrowers are used for both military and civilian purposes, such as land management and entertainment. The fuel capacity of modern flamethrowers can vary, with some holding up to 3.5 gallons of fuel for a continuous 60-second burn.
| Characteristics | Values |
|---|---|
| Weight of M1 flamethrower | 72 lb (33 kg) |
| Weight of M1A1 flamethrower | 65 lb (29 kg) |
| Range of M1 flamethrower | 15 meters |
| Range of M1A1 flamethrower | 45 meters |
| Fuel tank capacity of M1 and M1A1 flamethrowers | 5 gallons |
| Fuel type for M1 flamethrower | Diesel oil, fuel oil, or blends of gasoline and oil |
| Fuel type for M1A1 flamethrower | Thickened fuel (napalm) |
| Fuel type for commercial flamethrowers | Gaseous fuels such as propane |
| Fuel type for Pulsefire LRT flamethrower | Gasoline (unleaded, any octane, E0 - E85) |
| Fuel type for homemade flamethrowers | Lowest grade gasoline, kerosene, or any flammable liquid |
| Fuel capacity of homemade flamethrowers | 3.5 gallons (13.25 liters) |
| Burn time of homemade flamethrowers | 60 seconds |
| Propellant for flamethrowers | CO2, nitrogen, or compressed air |
| Safety considerations | Store depressurized and with the fuel tank empty; keep away from children and unauthorized users |
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What You'll Learn
- Flamethrowers use a variety of fuels, including gasoline, kerosene, diesel, and napalm
- CO2 is used to propel the flammable liquid and prevent internal fires
- The M1 flamethrower holds five gallons of fuel
- The M1A1 flamethrower has the same fuel capacity as the M1 but fires thickened fuel (napalm)
- Flamethrowers have been used for thousands of years, with the earliest versions being long tubes filled with burning solid material
Flamethrowers use a variety of fuels, including gasoline, kerosene, diesel, and napalm
Flamethrowers are weapons that project a stream of fire, and various models have been used since World War II. They can be fuelled by a variety of flammable liquids, including gasoline, kerosene, diesel, and napalm.
Gasoline is a common choice for flamethrowers as it is easily accessible and affordable. It is important to note that only gasoline vapours are flammable, and a specific ratio of oxygen to gasoline is required for ignition. The recommended mixture is 75% gasoline and 25% kerosene, which provides maximum range and a low-grade "napalm effect".
Kerosene can be used as a substitute for diesel in flamethrowers. It is also a petroleum-based fuel, and its use results in a similar "napalm effect".
Diesel is another fuel option for flamethrowers, particularly for firefighters and forestry users. A mixture of gasoline and diesel (up to 50% diesel) can be used for burning foliage as the diesel allows the fire to cling to the foliage and burn longer.
Napalm is an incendiary mixture of a gelling agent and a volatile petrochemical, typically gasoline or diesel fuel. It was developed during World War II and has been used extensively in combat since, including in flamethrowers. Napalm burns at extremely high temperatures, adheres to targets, and burns longer than gasoline. It has been a highly effective and controversial weapon, with critics citing its use against civilian populations.
The fuel capacity of a flamethrower is typically around 3.5 US gallons (13.25 litres), providing a continuous 60-second burn. This is considered a long burn time, as most flamethrower displays last about 5-10 minutes.
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CO2 is used to propel the flammable liquid and prevent internal fires
A flamethrower is a ranged incendiary device designed to project a stream of fire. The basic idea of a flamethrower is to spread fire by launching burning fuel. The flamethrower consists of two tanks, a wand housing, and an ignition system. One of the tanks holds the flammable liquid mix, and the other holds a pressurizing agent.
Carbon dioxide (CO2) is used as a pressurizing agent in flamethrowers. CO2 is an inert gas, meaning that fire cannot exist in its presence. As the flamethrower is used and the fuel tank empties, the space left behind is filled with CO2, which prevents the possibility of an internal fire. CO2 is stored at higher pressures compared to compressed air, allowing for a more compact and lightweight flamethrower design.
The flamethrower's fuel tank contains a flammable liquid, typically a liquid fuel such as heated oil or diesel. Various mixtures of fuels can be used, including gasoline, kerosene, and thickened fuels like napalm. The choice of fuel mixture depends on the desired range and effect. For example, a mixture of 75% gasoline and 25% kerosene can provide a maximum range and a low-grade "napalm effect".
The CO2 in the pressurizing tank exerts pressure on the fuel in the other tank, forcing it through the fuel hose and into the wand housing. When the trigger is pushed, pressurised fuel from the tank is released through the wand and ejected into the atmosphere, where it is ignited.
CO2 is used in flamethrowers for safety reasons, as it eliminates the chance of an internal explosion or fire. However, it is important to note that CO2 provides unreliable pressure, with rapid drops in pressure during cold weather or when the fuel tank is almost empty. Despite this drawback, CO2 is commonly used by major flamethrower companies due to its ease of availability and safety benefits.
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The M1 flamethrower holds five gallons of fuel
The M1 flamethrower was developed by the United States during World War II. It was first manufactured in March 1942 and deployed by the end of that year to the South Pacific theatre. The M1 was a portable flamethrower weighing 72 pounds (33 kg) with a range of 15 metres. It was an improvement on the earlier E1 model, which had been deemed unfit for military operations due to its weight and difficulty in firing from a prone position.
The M1 flamethrower was gradually replaced by the M1A1 in 1943, which had a longer range of 45 metres and weighed less at 65 pounds (29 kg). The M1A1 used thickened fuel (napalm) and was capable of firing at pillboxes 50 yards away. The M1A1 was then replaced by the M2 flamethrower later in the war.
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The M1A1 flamethrower has the same fuel capacity as the M1 but fires thickened fuel (napalm)
The M1 and M1A1 were portable flamethrowers developed by the United States during World War II. The M1 was first manufactured in March 1942 and saw deployment by the end of that year to the South Pacific theatre. The M1 weighed 72 pounds (33 kg) and had a range of 15 metres. Its fuel tank capacity was five gallons.
The M1A1 gradually replaced the M1 in 1943. It 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 M1A1 weighed 65 pounds (29 kg) and had a range of 45 metres. Notably, it had the same fuel capacity as the M1 but fired thickened fuel (napalm).
Napalm is a "thicker" fuel additive that increases the flamethrower's operational range and damage effect. This thicker fuel differentiated the M1A1 from the M1, which used "light" fuel. The M1A1 could yield a flame burst out to 50 yards, whereas the range of the original M1 was roughly 30 yards.
The M1A1 allowed for fire at pillboxes 50 yards away with 50% of its charge reaching into the structure, compared to the M1's 10% at a distance of 20 yards. The invention of napalm and its improved flamethrowing distance meant that the M1 platform needed to be adjusted to meet the higher operating pressure necessary to maximize the projection of napalm. Modifications included the fuel system, pressure regulator, valves, and the flame gun.
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Flamethrowers have been used for thousands of years, with the earliest versions being long tubes filled with burning solid material
Flamethrowers have been used as weapons for thousands of years, with the earliest versions being long tubes filled with burning solid material such as sulphur or coal. These early flamethrowers date back to the 5th century BC and worked in a similar way to a blowgun, with the user blowing into one end of the tube to propel the burning material towards the target.
A more advanced version of the flamethrower was developed in the 7th century by the Byzantine Empire, who added "Greek fire" to their arsenal. Greek fire was a highly flammable, oil-based mixture of liquid petroleum, sulphur, quicklime, and other elements. The Byzantines used a basic pump to shoot Greek fire out of narrow brass tubes, creating a powerful stream of fire.
The design of the flamethrower continued to evolve, with the Chinese developing a more advanced pump, the double-acting bellows, which allowed for a constant stream of fuel and a continuous blast of fire. In modern times, flamethrowers were first used during World War I and saw wider use during World War II as tactical weapons against fortifications.
Most military flamethrowers use liquid fuel, typically heated oil or diesel, while commercial flamethrowers often use gaseous fuels like propane. The fuel capacity of a modern flamethrower is typically around 3.5 US gallons or 13.25 litres, which can provide a continuous burn for about 60 seconds. Various types of flammable liquids can be used as fuel, including gasoline, napalm, and used motor oil.
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Frequently asked questions
The amount of fuel in a flamethrower depends on the type of flamethrower and its fuel capacity. For example, the M1 flamethrower has a fuel tank capacity of five gallons, whereas the M1A1 has the same capacity but uses thickened fuel (napalm). Another flamethrower has a fuel capacity of 3.5 US gallons/13.25 liters.
Flamethrowers typically use liquid fuel, such as heated oil, diesel, or blends of gasoline and oil. Commercial flamethrowers often use gaseous fuels like propane.
One tank of fuel in a flamethrower will typically last for a continuous 60-second burn. Most flamethrower displays last about 5-10 minutes as users won't usually shoot for a full minute straight.
The range of a flamethrower varies depending on the model and the type of fuel used. For example, the M1 flamethrower has a range of 14 to 21 yards, while the M1A1 has a much longer range of 45 meters due to its use of thickened fuel. Other flamethrowers can have a range of up to 45 feet with the right fuel mixture.
