djpacro Posted January 3, 2013 Share Posted January 3, 2013 Video of tests from 1973 in the NASA Langley Research Center's 20-Foot Spin Tunnel. Models are dynamically scaled with various tail configurations and spin modes. Good shot showing how models are retrieved after a test as well. Tests are to determine configurations that will enhance recovery from a spin. For more on the 20-Foot Spin Tunnel and other tests conducted there, see http://crgis.ndc.nasa.gov/historic/645. 2 Link to comment Share on other sites More sharing options...
Gnarly Gnu Posted January 3, 2013 Share Posted January 3, 2013 All the fun jobs like that seem to have disappeared. Link to comment Share on other sites More sharing options...
facthunter Posted January 3, 2013 Share Posted January 3, 2013 Yet aircraft continue to be built that don't use the data here. Some are designed to look "cool". Another significant effect is getting mass towards the centre of gravity rather than distributed well away from it, where the effect is to flatten the spin. Having the engine high and above and behind. ( like the Britten Norman "Trislander") must pose significant problems to spin recovery. Spinning (Autorotation) should be taught to all pilots of RAAus type aircraft. You can't and shouldn't attempt it in an RAAus plane, but do it with a competant instructor in an aerobatic rated plane. Nev 1 Link to comment Share on other sites More sharing options...
djpacro Posted January 3, 2013 Author Share Posted January 3, 2013 All the fun jobs like that seem to have disappeared. I used to do that! 1 Link to comment Share on other sites More sharing options...
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