Flamethrowers had two fuel lines. The line he is lighting is cigarette with is sort of like a pilot line. It is a smaller fuel line that stays lit and can produce a bit of a larger flame when its trigger is pressed. The second line is for the big fire. This contains a thicker gelatinous type of fuel. So the flamer will pull the first trigger making the pilot flame larger, then pulls the second trigger emitting the thicker fuel which gets lit by the pilot flame raining hellfire upon anyone in its path. So technically its not really a blowtorch, but just a little pilot flame.
“The important thing to remember about this photo is that the Cold War was, by its very nature, a war of technological advances and propaganda. Literally, this was about who could spend more money to out-bullshit the other. Everything was about bullshit. Who could spin bigger bullshit, grander bullshit, in what ways could we trip up the other side? This is why, for a while, there were SEAL Teams 1, 2, and 6. Its the old Greased Pig Senior Prank, done with lethal commandos. The reason the Stealth was labelled as a Fighter, and not a Bomber. Misdirection, chaos, confusion. Not only can our soldiers jump out of planes over urban areas, but they can do it while maintaining a perfect salute, without losing their beret. Lets see those capitalist pigs out-do that!” – My friend Mikhail