Originally Posted by
harsh786techy
Hello All,
I have been flying Airbus since a long time and have flown CFM IAE and NeO(PW and Leap). Mostly in PW and IAEs, sometimes, I have felt ATHR kicking in very late during flare to maintain Vapp And hence causing late arrest of the sink.
I usually hold the THR LVR at CLB till the sink rate is arrested. Mostly it works but I am afraid where GS is 3.3 or 3.5 and high altitude, might result in a very firm touch down.
Would love to hear views and experiences of other A320 folks.
Expecting ATHR to maintain Vapp during flare is not a recommended technique of the A320 or for that matter any aircraft nor is it required. One has to manually flare sufficiently to break the descent and bring thrust to idle. If the Descent doesn't reduce as required then more back stick is used not the thrust. Speed will decrease during flare and touchdown. Landing distance calculation takes into consideration 4% speed decay during flare and 7sec to touchdown from threshold. If you maintain thrust you compromise the calculation. This is what Indian 737 carriers are doing and in monsoon end up in RW excursions.
Safety first Sept 2020 has an article A Focus on the Landing flare