Administrator Administrator Staff member Dec 14, 2014 #2 Uploaded on Jan 15, 2008 Historic footage of Erich von Holst ornithopters (flapping-wing aircraft) constructed in the 1930s. Also includes slow motion footage of bird flight and Holst's unusual "thrust-wing" concept. Click to expand...
Uploaded on Jan 15, 2008 Historic footage of Erich von Holst ornithopters (flapping-wing aircraft) constructed in the 1930s. Also includes slow motion footage of bird flight and Holst's unusual "thrust-wing" concept. Click to expand...
