.
  gvp   ,    : "expedite your turn","expedite your climb","expedite your descend".

   .
         ,      (      18000 ft),       ,           .       .       ,        .    ,    IFR     ,       ,     .     .

.
 1.   , ,      USEnglishBig.bak
 2.   USEnglishBig.gvp      ,    .

.
 1.   USEnglishBig.gvp
 2. ,     USEnglishBig.bak ,  USEnglishBig.gvp

.
      .  ,       ,       .         ,    .

 ,   (4beer)