The term German Airplane can be summarized by the crossword solution STUKA, which is a five-letter word. STUKA is an abbreviation for the German word 'Sturzkampfflugzeug, ' which translates to 'dive bomber' in English. The STUKA was a type of dive bomber aircraft used by the German Luftwaffe during World War II. It was designed to dive steeply towards its target and deliver a powerful bomb load.