PPRuNe Forums - View Single Post - Vortex Ring / Settling with power (Merged)
Old 21st Jan 2001, 20:34
  #29 (permalink)  
JoePilot
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Fully developed it is very stable - quite elegant really, quite hard to stay in, needs very stable homogeneous air - arguably the fastest (of three) way down. (allegedly actually used in Vietnam by a friend of mine)