Whilst we (I) talk about unreliable airspeed, has anyone tried 4 degrees and 70% in cruise on the B777 in the sim?
Yep, fun isn't it..
....Like you I always used to think in terms of have 85-90 and 2 degrees as starters and I have to be honest and say even now I might still shoot for those numbers intially if I had
just lost airspeed and knew for sure I had
just been in S&L flight.
You may be aware of this, if so apologies for boring you, but I gather the Boeing logic for their "new" numbers is if you don't know your starting point ( as in were you S&L or not when you lost data? ) 4/70 will keep you inside the envelope long enough to get the ECL actioned, but there's obviously no guarantee at all that you are going to immediately be in level flight ....