The Blohm & Voss BV 143 was an early prototype rocket-assisted glide bomb developed by the German Luftwaffe during World War II.
[1] By 1941, Allied merchant ships were slow and easy targets for German coastal bombers, but were proving increasingly well-equipped with anti-aircraft artillery, making short-range attacks prohibitively costly.
Interest was raised in the development of a stand off weapon to engage unarmored merchant ships from beyond the range of the Bofors 40 mm gun.
The BV 143 was one of several stand off bomb and missile designs researched by the Blohm & Voss Naval Engineering Works for this anti-shipping role.
[2] The Bv 143 was designed to be air-dropped from beyond the range of antiaircraft guns, glide towards the target, engage its solid rocket motor below the line of fire of guns, and commence a short (30 second, maximum) high speed dash to the target, striking 2 metres (6 ft 7 in) above the waterline.