text: field 
  length are illustrated by figure 6.13. The 
  first 
  figure 6.13 depicts the 
  case where the runway length is equal to the 
  rritical jield kngth. 
  In this case, the airplane 
  could accelerate to Vi with all engines opera- 
  tive then either continue takeoff safely with 
  one engine inoperative or refuse takeoff and 
  decelerate to a stop on the remaining runway. 
  For this condition, an engine failure occurring 
  at lefs than I’, speed dictates that takeoff must 
  be refused because inadequate distance remains 
  to effect a safe takeoff at V, speed. However, 
  at or below V, speed, adequate distance re- 
  If 
  mains to bring 
  engine failure occurs at some speed greater 
  than Vi speed, takeoff should be continued 
  because adequate distance remains to accelerate 
  to V, speed and effect a safe takeoff with one 
  engine inoperative. 
  If engine failure occurs 
  beyond Vi speed, inadequate distance remains 
  to brake the airplane to a stop on the runway, 
  The second illustration of figure 6.13 depicts 
  the case where the ranway length is 1~s than 
  the titical 
  In this case, the term 
  field length. 
  of “V,” 
  speed is not applicable because of 