Originally Posted by
sebavasta
Hi, I am an aviation enthusiast. I am very curious about this.
So the 777-200 has a listed range of 9,700 km (See Wiki for 777 pls)
Suppose air distance between city A and city B is 9510 km. Would airlines fly this distance?
I.e. My question is, what is the maximum percentage of a range of an aircraft used by a flight?
So, for example if the air distance from city C to city D is 9690 km will it be allowed to fly from C to D
with only 10 km left of the full range??
How are these things decided??
There has to be sufficient fuel left at the end of a sector to ensure a diversion to an alternate destination. That could be due to wx or a technical problem. Wx enroute too will have a bearing, head winds etc. Be sure it has all been computed by flight planning with the most advantageous route selected where possible. Look online on Youtube you will find all your answers there.With flight briefings etc.