Mugatu Posted December 27, 2008 Posted December 27, 2008 and another http://au.youtube.com/watch?v=trmS4r6_yjQ
Vortex Posted December 27, 2008 Posted December 27, 2008 (edited) and another http://au.youtube.com/watch?v=trmS4r6_yjQ Wasn't it overpitching and not VRS that caused the uncontrolled descent? I think it's similar to this video, where the main rotor droops but the pilot drops the collective to bring up the RRPM and can then cushion the landing. http://au.youtube.com/watch?v=tsDSvcEDCgg&feature=related Edited December 27, 2008 by Vortex
rmakowsky Posted December 27, 2008 Posted December 27, 2008 A couple of these videos had elements of Vortex Ring State but they also had more elements of excessive sink rate while in controlled flight (mostly controlled <G>). The Blackhawk by the school into the trees, the Sea King, and the Blackhawk pranging on the ship deck were all pilot induced sink rates that did not have sufficient room to arrest descent. The Mi-8 looked like a nice Vortex Ring as he slowed and then reversed into his downwash. It is certainly something to keep aware of, and when setting your battle positions if possible make sure that you have somewhere to fly out esp in the mountains. Vortex, I did not see your early post with the std US Army vortex ring factors or I would not have put in a second set of them. All good stuff. rmako
Mugatu Posted December 27, 2008 Posted December 27, 2008 (edited) ^^ The last one suffered rotor droop, not VRS sorry. Edited December 27, 2008 by Mugatu
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