PPRuNe Forums - View Single Post - Air Asia Indonesia Lost Contact from Surabaya to Singapore
Old 20th Jan 2015, 14:28
  #2235 (permalink)  
RifRaf3
 
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Of course 6000'/min is possible for an updraft, but gliders do not stall when they enter thermals. They gain total energy, The ROC mentioned is adequately explained by trading speed for height. There equally could have been a slight downdraft.
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