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Given:

Distance from departure to destination: 5000 NM
Safe Endurance: 10 h
TAS: 450 kt
Ground Speed Out: 500 kt
Ground Speed Home: 400 kt

What is the distance of the PSR from the departure point?

  • A
    1111 NM
  • B
    2222 NM
  • C
    2778 NM
  • D
    2500 NM

Distance to Point of Safe Return = Endurance x GS OUT x GS home / GS out + GS home

10 hrs x 500 kt x 400 kts / 500 kts + 400 kts = 2222 NM

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