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To meet the balked landing requirements an aircraft (Class A) must achieve a climb gradient of:
  • A
    2.1% in the landing configuration with all engines operating
  • B
    2.5% in the landing configuration with the critical engine inoperative
  • C
    3.8% in the approach configuration with all engines operating
  • D
    3.2% in the landing configuration with all engines operating

Class A - Landing Climb Requirements

LANDING CLIMB (All engines operating CS-25.119)

A gradient of not less than 3.2% with:

  • All engines operating at the power available 8 seconds after initiation of movement of the thrust control from the minimum flight idle to the take-off position
  • Landing configuration
  • Aerodrome altitude
  • Ambient temperature expected at the time of landing
  • A climb speed of VREF
  • VREF:
    1. not less than VMCL
    2. not less than 1.23VSR0
    3. provides the maneuvering capability specified in CS-25.143 (h)

DISCONTINUED APPROACH CLIMB (One engine inoperative CS-25.121 (d))

A climb gradient not less than:

  • 2.1% for 2 engine aircraft
  • 2.4% for 3 engine aircraft
  • 2.7% for 4 engine aircraft
  • The critical engine inoperative and the remaining engines at go-around thrust
  • Landing gear retracted
  • Flaps in the approach configuration, provided that the approach flap VSR does not exceed 110% of landing flap VSR
  • Aerodrome altitude
  • Ambient temperature
  • Speed: Normal approach speed but not greater than 1.4VSR.
Maximum landing weight

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This question has appeared on the real examination, you can find the related countries below.

  • United Kingdom
  • Austro Control
  • Thailand