About IVSI?
If the Inertial refrence system fails, does the IVSI work?
To the best of my knowledge (somehow this is a guess), In the case of IRS failure, it works like a conventional VSI (with lag in the indications up to 6 seconds) without instantaneous trend indication. IRS input is only fed for immediate trend indication but then the system works as relying on the rate of change of ambient pressure.
Well, although I am an SIM instructor on B737 EFIS/NG, there is no option among the snags (such as Total Static Block) which I can try this in SIM. No Boeing Document (including AOMs) give a clear explanation about this either.
What do you guys think all about this?
Last edited by JABBARA; 27th Oct 2004 at 22:23.