Hatchery of Salamander - underground factory of heinkel He162 at Hinterbrühl

Heinkel He162 during production process in underground
factory at Hinterbrühl

In 1944 Ernst Heinkel went on a search for a bombproof production site for the  He162 "Salamander", the choice fell on the lake grotto. The underground lake was drained, the floor filled with concrete and the necessary equipment installed (lighting, heating, ...)
Despite the terrible situation as a whole in 1944/45 could be made in the tunnels 198 fuselages of the "People's hunter". Employees were over 2000 people, including 1700 KZ prisoners from KZ Hinterbrühl. The final assembly was carried out in Schwechat - Heidfeld in Heinkel factory at today's airport