The quoted figures are a statistical saving. The breakeven distances are nonsense and do not take into account the cost of time, only the cost of fuel. Nor do they take into account the cost of exiting the runway at 90deg vs RET (lower speed and NW wear). So they are a very rough guide. Just apply some common-sense!
Speaking about common sense.
Some people will spend more than a minute thinking about their landing flaps but in the meantime will funnily enough:
-fly a CDA with F2 VS-300 and thrust up
-use speedbrakes inefficiently or ask for/fly more trackmiles than necessary
-slow down/configure too early
-follow the managed descent profile religiously despite winds and or speed-profile being incorrect
-decline a visual approach
It surprises me to see the amount of people that are declining visual approaches whilst this is where the real fuelsavings can be made, and they are more fun to do as well. Have to agree with sarah737 here.
I understand that F3 landings save fuel vs Full landings when carefully considered but the saving is insignificant when compared to some of the stuff I´ve described.
Last edited by OPEN DES; 4th Jun 2013 at 02:22.