Hows is the takeoff-to-landing flight time calculated (excluding the turnaround time)?
I tried dividing the flight distance in aircraft performance tool by the speed of the aircraft and the numbers are way off.
I thought it was simplified process but obviously it is not.
Is there specific time dedicated to takeoff/landing?
In real life you would have to take into account that the routing is never direct, plus the length of the STAR/SID, plus the time not at cruise speed.
I would suspect AS have simplified the process by doing similar to Distance/Speed + a standard increase subject to size of airport?
OK, I got my answer...
basically it's the equatio
TL = Flight time - (distance/speed)
TLA takeoff/landing cycle time
I just checked this for a 737 classic on about 8 dfferent routes/distances/airport sizes, TL is 25 minutes regardless of airport size.
Easy to calculate for any aircraft type now, with this equation.
Hi,
a few years ago I wanted to know why fuel consumption was not linear. So I used the simple algebra formula to find one unknown x (fuel per cycle). After I finished calculating the fuel consumption for several aircraft types, I realised that I only had to enter the same airport twice (origin & destination) and read the fuel consumption per cycle.
Did you also calculate the time per cycle ? Or did you just use the aircraft performance tool and enter the same airport twice ? That also tells you the time per cycle (taxiing, take-off and landing)...
Jan
I did calculate it mathematically ... but now looking on aircraft performance tool I see the exact 25 minutes on 737 classic when using same departure/arrival airport.
We could have saved ourselves the time and just have used the aircraft performance tool :D
Jan