How far can a World War 1 flamethrower shoot?

World War I flamethrowers typically had a range of about 20 to 40 meters (approximately 65 to 130 feet). The effective range varied depending on the specific model and the conditions of use. These devices were primarily used to clear out trenches and fortifications, creating a lethal zone for enemy troops. Despite their effectiveness at close range, flamethrowers were also dangerous for the operators due to the risk of backfire and exposure to enemy fire.