article · German
Mechanische Rechner der Fliegerabwehr, frühe Lösungen: Flugzeugvermessung im 1. Weltkrieg und danach, ca. 1915–1936
A 34-page German-language research article by André Masson (October 2017) examining early mechanical fire-control instruments for anti-aircraft defense from roughly 1915 to 1936. The article covers the Auswanderungsmesser 17 (lateral deviation meter) and its associated command disc used to compute shell lead angles, a patented Swedish triangulation device (Reich Patent 374514, 1917), an early mechanical angular-velocity/lead-angle calculator (Reich Patent, January 1917), and Swiss experiments with a 7.5 cm Krupp gun on a rotating tower mount. It analyses the geometry of the instruments, identifies unresolved puzzles in the eyepiece grid design of the AM 17, and discusses why these WWI-era devices were still being manufactured under Nazi-era production codes in the early 1940s.