737NG Airspeed Trend Vector
A question for the NG technical experts...
Would the Airspeed Trend Vector on the PFD MASI use acceleration data from the IRU's or air data from the Pitot-Static system?
All the Boeing MM seems to say is that is comes from the DEU. Is it a combination of both, perhaps? (like the IVSI's on some aircraft)
Has anyone pumped up the pitot tubes during ground maintenance whilst observing the MASI? (i.e. no IRU input)
Thanks.
Regards.
Q.