Your cartoonist is a big aviation enthusiast. One particular design that’s always fascinated him is the German WW2 era Bachem Ba 349 Natter (“Adder”), developed just before the end of the war. It was a tiny, vertically-launching rocket plane designed to shoot down incoming bombers. Constructed mainly of wood it was designed for speeds of up to 1,000 km/h. It was also partially disposable, with the main rocket engine and the pilot returning to the ground by parachute. It only flew once, immediately crashed, killing the unlucky test pilot. It’s designer went on to build caravans after the war – probably a bit less dangerous.