Otto Eberhardt Patronenfabrik (English: "Otto Eberhardt Cartridge Factory") was a munitions company established in 1860. The company's Hirtenberger Patronen, Zündhütchen und Metallwarenfabrik (English: "cartridge, primer and metalware fabrication in Hirtenberg") near Wiener Neustadt (proofmark "am")[1] used forced labor during World War II from a sub-camp of the Mauthausen-Gusen concentration camp and produced ammunition including 9×19mm Parabellum (pistol and submachine gun) and 8 mm Mauser (rifle) cartridges. The company also had a factory in Ronsdorf near Wuppertal (proofmark "ap")[1] which produced rifles. Additional Gustloff facilities were in Meiningen[1] and Weimar.[2]
Hirtenberg aircraft
Otto Eberhardt Patronenfabrik also purchased the assets of the Hopfner aircraft company in 1935. They continued production of both de Havilland- and Siemens-powered aircraft under the Hirtenberg brand. They produced the Hirtenberg HS.9 under their brand.
Unbuilt projects
- Hopfner H.A.M.11 (amphibious twin-engine aircraft based on H.A.11/33)
- H.M.15 (six-seat, twin-engine military aircraft based on the HV.15)
External links
References
- WWII German Ordnance Codes retrieved 2008-09-16^
- Looking for info on Gustloff Werke 5.6x35RWS German Weapons, Gun Collector Forum, retrieved 2008-09-16^
- Theodor Hopfner/Hirtenberg Aircraft, Prototypes and Projects Secret Projects Forum^
- Hopfner aircraft, Austria Secret Projects Forum^