FL

[boyanpilot]

I haave an Opensky 737800 and its written in airplane spec that he can fly 3,353 nm,but I cant come up to 2,100 or so...at FL 330 so does airplanes in FS and Real aviation spend less fuel if they fly at higher FL-s ....

thanks

[ashaman]

If you feel that a given plane has not the autonomy it should, open its aircraft.cfg, find the string "fuel_flow_scalar=" and try reducing slightly the given value. You'll have to experiment a little to get it right, but it works.

What that string does is to control the fuel flow efficiency. I myself have been able to make a LIRF-RJAA with the PM2 Concorde with no refuel stop tinkering with that value in that plane.

[Nexus]

Yes, the fuel consumption will decrease if you fly higher because you will mett less resistance (drag) since the air is thinner.

However you cant just take off at max takeoff weight and rocket up to  FL410. You will be too heavy and the engines wont have enough power to get you up there.

In theory ,the optimal flight path would be a constant increase in altitud. But since that is very hard to get right IRL, airliners use a thing called stepclimb instead.