From way back in the thread
Its not pitot but static...static vent blocked.Airspeed will indicate normally on takeoff but underread in climb.Altimeters will remain stuck after takeoff.Its a nasty little scenario and could easily lead to confusion.The subsequent loss of control could be explained by the high speeds with flaps still down(crew distraction and onset of panic).
If it happens(altimeters dont show climb after liftoff,you get windshear warning(false) and.or stick shaker(false) you have to climb to 1500' on RADIO ALTIMETER, level off, set 60% N1,ignore the warnings and LAND immediately,either visually or on vectors.
So let us assume that is the case and the advice given here was not followed the aircraft is in almost level flight at 5000ft with mud wasp nests (or whatever) in the static vents. The crew have taken over manually and are almost controlling the aircraft with pitch and power with a hazy horizon but things are calming a little. If the autopilot were to be reengaged what would happen?
Would the FMS with UAS demand to climb and accelerate while the STS was running opposite direction (as per previous flight). As the aircraft rapidly climbs the crew re-disconnect autopilot or it disconnects itself. Could the crew be given an aircraft at the top of a zoom climb with full thrust and a lot of ND trim bunting into a 25 - 30degree nose down power dive at the ocean?