Conditions That Require Recalculation Of Takeoff Performance Prior To Takeoff

Question 1

Final Loadsheet Recalcuation Requirements

Answer 1

When operating at performance or structural weights - ANY environmental conditions that would adversely affect the initial takeoff data.

OR….(at other times)

1. Weight above that used for calculations
2. Headwind decreases by 5kt or more
3. Any increase in tailwind component
4. Entered OAT increases by 2°C or more
5. Entered barometric pressure decreases by 2 hPa (0.06Hg) or more

Question 2

Conditions That Require Re-calculation of takeoff performance prior to takeoff

Answer 2

1. Runway in use changes
2. Runway conditions deteriorate
3. Use of a new intersection shortens runway length
4. Adverse wind and temperature changes