Fritz X
The only Luftwaffe unit to deploy the Fritz X was "Gruppe" III of "Kampfgeschwader" 100 "Wiking" (Viking), designated III./KG 100; the bomber wing itself evolved as the larger-sized descendant of the earlier "Kampfgruppe 100" unit in mid-December 1941. This unit employed the medium range Dornier Do 217K-2 bomber on almost all of its attack missions, though in a few cases toward the end of its deployment history, Dornier Do 217K-3 and M-11 variants were also used. Fritz X had been initially tested with a Heinkel He 111 bomber, although it was never taken into combat by this aircraft. A few special variants of the troublesome Heinkel He 177A "Greif" long-range bomber were equipped with the "Kehl" transmitter and proper bombracks to carry Fritz X and it is thought that this combination might have seen limited combat service, at least with the combinations known to have been involved in test drops. It was found the launch aircraft had to "toss" the bomb slightly, climbing and then descending, to keep it in view ahead.