Mxsmanic wrote in
:

Union Thug writes:

I am gonna break a cardinal rule here and respond to one of your
posts.I am doing this because you have raised a question others might
be interested in. I cannot speak for other jets ( I am sure they are
similar) , but the Boeing uses an ADIRU which has 2 sets of three
laser ring gyros either set will sufice to measure acceleration,
pitch and roll. And there is an ADIRU for each side of the cockpit
(Capt & FO). The IRS will also provide attitude info and there are
two of those also. Keep in mind you can switch the display to all on
system one or two. With this level of redundancy we dont even
practice partial panel or raw data stuff in the sim, it is simply not
necessary. Years ago I flew an approach with just backup instruments
in a turbo prop after a total EFIS failure and it was no big deal. I
think you might be making more of this than you need to.

I was talking about small aircraft with the kiddy glass cockpits, like
the G1000.


Stil dn;'t know what you are talking about.



Bertie