The ultamate A320 fuel saving method.
Tow out to TO runway threshold - GPU + GTSU for starting both eng - packs off TO - TOGA to 3000' - cleanup - green dot climb - Crz and Desc CI '0' - green dot desc from 10000' - Conf 1 at GS int 3000' - 2 at 2000' - 3 at 1000' - gear down at 500' - idle rev only on ldg - shut down engines on runway - tow in to bay.
No APU, no clb/desc level-offs, only 1 pack on, no galley power, no TAI.
I beg to differ.
The ultimate fuel saving scenario: (excluding things like GPU, tow out/in etc)
-TOGA thrust for 5/10 min with packs off as long as practical
-Minimum fuel would be achieved by an as low as possible accel. (400ft AAL iaw PANS-OPS). With T/O at min flap setting (1+F).
-Minimum trip fuel would be achieved at climbing at max r.o.c. speed (CI=0)
-Min. trip fuel during cruise flying CI=0=max. r.o.c. speed=V max range at OPT FL or above when anticipating step clb.
-Same theoretically for descent but FMGS defaults to 250/270 kt minimum at CI=0 depending on company options. CI=0 would theoretically give you green dot speed. So select green dot speed to get best L/D ratio: best gradient for descent (longest possible descent time in idle thrust=earliest descent possible at idle thrust=shortened cruise time)
-decelerated approach; spool-up/stable at 500ft/1000ft