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At sea level ISA an aircraft has a rate of climb of 650 ft/min at an indicated air speed of 85 KTS. The climb gradient in still air is:
  • A
    7.5%
  • B
    13%
  • C
    1.3%
  • D
    0.75%

Still Air Gradient of Climb = (Rate of Climb (fpm) ÷ TAS (kt)) x (6000 ÷ 6080)

Still Air Gradient of Climb = (650 ÷ 85) x (6000 ÷ 6080) = 7.55%

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