text: To provide for the rare instances of flight 
  when a load greater than the limit is required 
  to prevent a disaster, an “ultimate 
  factor of 
  is provided. Experience has shown 
  safety” 
  that an ultimate factor of safety of 1.5 is suf- 
  ficient for piloted aircraft. Thus, the aircraft 
  must be capable of withstanding a load which 
  is 1.3 times the design limit load. The primary 
  structure of the aircraft must withstand 
  the 
  “ultimate 
  (1.5 times limit) without 
  failure. Of course, permanent deformation 
  this “overstress” but 
  may be expected with 
  no actual failure of the major load-carrying 
  components should take place at ultimate load 
  Ground static tests are necessary to verify this 
  capability of the structure. 
  
  load” 
  
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              [html]<thead><tr><td>Statement</td><td>ments.</td></tr></thead><tbody><tr><td>Since - rh</td><td>notmally</td></tr><tr><td>Table turn</td></tr><tr></tr></tbody>
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