wrote:
I've heard that in FBW Airbuses, if your sink rate on finals is low for whatever reason,
the computers might not consider it to be a landing at all, and might actually prevent
reverser deployment and even inhibit brake application on the landing roll?

Dave S wrote:
Google the term "Radar Altimeter"


I assume that I didn't convey myself adequately because I wasn't asking
about what the aircraft use in detecting terrain.

My question was if in a low sink rate situation - possibly a flatter
profile during finals (a no-flaps situation) or you came in slower and
touched down gently at the initial section of the touchdown roll, does
FBW technology prevent reverser deployment until too late? When I first
read about it, it struck me as the exact opposite of a safety feature
(if at all it's that) because these are the situations when you'd need
reversers the most. I also similary wondered about brakes too, and
whether onboard computers can (or do) inhibit application in some
circumstances.

And I hope this isn't what happened yesterday at Irkutsk.

Ramapriya