On Jul 1, 5:03*pm, David W wrote:

...and if the pitot tubes were providing low airspeed data (which the
OP mentioned in his post, saying "the Captains, First Officers, and
standby airspeed indicators rolled back to 60kts...") *prior to the
rudder travel limiter disengage, those travel limits would be far less
stringent than if the ADC "knew" the aircraft was travelling at cruise
speed.

Is the pitot-static systems linked as in GA aircraft? If so, then a
clogged pitot would read low airspeed or am I in the dark here?


If you meant to ask whether the 3-odd pitot systems, the answer I
think is a No, else you'd have both pilots' ASIs reporting the same
speed all the time, which isn't the case. Pilots can in fact even
choose which pitot system the Autopilot can take inputs from.

I seem to remember that one of the criticisms of the PF's actions in
the Birgen Air crash was that he didn't opt to link the AP to the
functional pitot system (FO's) although he knew right during the
takeoff roll that his own pitot had gone kaput.

Ramapriya