18 / 20

The take-off distance of an aircraft is 800 m in standard atmosphere, no wind at 0 ft pressure-altitude. Using the following corrections:

± 20 m / 1000 ft field elevation
- 5 m / kts headwind
+ 10 m / kts tailwind
± 15 m / % runway slope
± 5 m / °C deviation from standard temperature

The take-off distance from an airport at 2000 ft elevation, temperature 21°C, QNH 1013,25 hPa, 2% up-slope, 5 kts tailwind is…

  • A
    810 m
  • B
    870 m
  • C
    890 m
  • D
    970 m

ISA Temperature: 15 - (2 x 2) = 11°C
Current temperature: 21ºC, therefore ISA deviation: 21 - 11= +10°C ISA Dev

Corrections to apply:

For an altitude of 2000 ft: + 40 m

For tailwind of 5 kt: + 50 m

For 2% upslope: + 30 m

For ISA Dev +10°C: + 50 m

Total Corrections = 170 m
Take-off distance = 800 + 170 = 970 m

Your Notes (not visible to others)



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

  • Azerbaijan
    2
Keyboard Shortcut Use Keyboard Shortcuts