Height of fixed wind levels used in the Upper Wind Code

   feet          meters
 ========       ========
     0               0
  1,000            305
  2,000            610
  3,000            914
  4,000           1219
  6,000           1829
  7,000           2134
  8,000           2438
  9,000           2743
 12,000           3658
 14,000           4267
 16,000           4877
 20,000           6096
 25,000           7620
 30,000           9144
 35,000          10668
 37,000          11278
 39,000          11887
 50,000          15240
 70,000          21336
 90,000          27432