The Henschel Hs 117 Schmetterling was a radio-guided German surface-to-air missile project developed during World War II. There was also an air-to-air version, the Hs 117H.
A Schmetterling missile on display at the National Air and Space Museum (NASM), Steven F. Udvar-Hazy Center.
A proximity fuze is a fuze that detonates an explosive device automatically when it approaches within a certain distance of its target. Proximity fuzes are designed for elusive military targets such a
Proximity fuse MK53 removed from shell, circa 1950s
German World War II magnetic mine that landed on the ground instead of the water.
A 155 mm artillery fuze with selector for point/proximity detonation (currently set to proximity).
Cross-section of a M734 radar proximity fuze