Originally Posted by
Sliceback
The most efficient way to save gas is to descend slower. You're closer to L/D and start down sooner. The second most efficient time and fuel saver is climbing out faster. The less efficient time and fuel saver is cruising at a higher mach.
This is true but would absolutely gum up the arrivals unless everyone is doing it, and I would bet that would happen in 0% of all cases due to arrival speed requirements. .70/230 kt descents aren't happening in any hub lol. Heck I don't know if I could stomach it into a spoke city either, that is just painful.
