Originally Posted by
galdian
..................If I have a suspected Airspeed Unreliable why would you do anything except maintain standard takeoff pitch - 15 degrees - and maybe tweak power back to MCT, sit fat dumb and happy until MSA THEN start screwing around with things?.............
To me achieving MSA then doing the Airspeed Unreliable checklist increases the safety of the aircraft...............
Just to be devil’s advocate:
Boeing designed their NNC to work at all weights, all engine variants and all altitudes. Does your procedure work for all such variations?
Will your procedure work at, for example, Las Vegas during the summer? (very high MSAs and very high ISA deviation). Or Geneva? (LSGG).
Best climb is with a clean aircraft, but your proposal is to climb dirty?
