Exams
Weather
Aircraft Information
General Knowledge
- VFR Circuit
- VFR Minima
- Airspace
- ATC Air Traffic Control
- Flight Rules
- Overhead Join
- QNH/QFE/QNE
- TA Transition Altitude TL Transition Level Semicircular Rule
ATC Services
CAA Phraseology
- Free Call Technique
- CAA AGCS VFR Circuits
- CAA AGCS Arrivals
- CAA AGCS Departures
- CAA AGCS RNP Approach
- CAA AFIS VFR Circuit
- CAA AFIS Arriving
- CAA AFIS Departure
- CAA AFIS RNP Approach
- CAA ATC VFR Circuit
- CAA ATC VFR Arrivals
- CAA ATC VFR Departure
- CAA ATC VFR Transit Class D
ICAO Phraseology
- ICAO AFIS Circuits
- ICAO AFIS Arrival
- ICAO AFIS Departure
- ICAO ATC Arrival
- ICAO ATC Departure
On a hot humid day, the aircraft will require more runway to take off, you can test this in the simulator yourself, start on the runway (Offline) set the weather to 40 degrees Celsius and open the throttle. Then reset and change to 0 degrees Celsius and do the same and you will notice the difference in how the aircraft performs. Being aware of this is very important.
We need a few things to calculate the takeoff distance. These are
- QNH
- Airfield elevation
- Outside temperature
- Wind component
QNH and Airfield Elevation we need to calculate the pressure altitude.
Our QNH is 1016, elevation is 709ft
Formula is PA (ft) = ( 29.92 – AltSet.(in/hg) ) * 1000 + FieldElev.(ft)

To make this easier to explain let us assume the press altitude is 1000ft and the outside temperature is 20 degrees. We can see that we have a ground roll of 825ft and if we need to clear a 50ft obstacle we need 1530ft simple yes? if the temperature is between 15 degrees you will need to do some maths and work that out.