View Single Post
  #6  
Old September 2nd 06, 10:02 AM posted to rec.aviation.ifr
Sam Spade
external usenet poster
 
Posts: 1,326
Default Can EFIS / EFMS lead to removing basic safety checks?

Jose wrote:

Are the flux gate sensors located near each other?



Depends on the model of airplane, I'm sure.



I would expect that for those models where the sensors are close
together, the right stray magnetism (whether deliberate or accidental)
could cause both redundant systems to have the same error.

Jose


A whole lot of design work goes into isolating those flux gates. And,
most of the mainline airliners have three IRUs, so they don't even use
flux gates. Everything is in true, then automatically converted to
local magnetic for display purposes.