777 des spd
Join Date: Jan 2006
Location: US
Posts: 2,205
Likes: 0
Received 0 Likes
on
0 Posts
Keep ECON? Rarely. If we're early and have a low cost index (CI) it will display 250 knots. That usually won't work into the high density cities we fly into.
.82/310 is a fairly typically combination. Behind schedule? .83-.84/320.
Chasing little airplanes. I usually program .80/300.
.82/310 is a fairly typically combination. Behind schedule? .83-.84/320.
Chasing little airplanes. I usually program .80/300.
We stick to ECON wherever possible.
Climb and descent are actually the phases that cost index has the most impact in terms of cost saving.
Climb and descent are actually the phases that cost index has the most impact in terms of cost saving.
Join Date: Mar 2002
Location: bumf*ck, idaho
Posts: 447
Likes: 0
Received 0 Likes
on
0 Posts
True wiz but what about the fuel costs of half the traffic doing 310 and the other doing 250..? Like the good old days down south there should be a mandatory speed, say 280, good for turb, good for flow control and you won't get rocked to sleep enjoying he worlds slowest descent...
Join Date: Jan 2006
Location: US
Posts: 2,205
Likes: 0
Received 0 Likes
on
0 Posts
Climb and descent are the biggest factor in fuel savings? Playing with the FMC and changing the climb, cruise, or descent speeds showed changing cruise speed to have the largest impact on arrival fuel.
Flight duration might be a factor. The flights I checked were 3+ hrs long.
Flight duration might be a factor. The flights I checked were 3+ hrs long.
