PPRuNe Forums - IRS beyond Navigation

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schleprock

20th January 2001 19:35

IRS beyond Navigation

What else does IRS do beyond navigation? I understand IRS is couple into alot of other aircraft systems. Could anyone elaborate?

Thanks in advance!

spanners

21st January 2001 00:39

IRS Also feeds info into other systems such as instruments(PFDs for attitude), autobrakes systems(757) for groundspeed info), radar stabilisation and a few more besides....

Reimers

21st January 2001 01:11

One more example (A320):

The VSI vertical speed indicator also receives IRS information turning it into an IVSI (instantaneous VSI) making it more accurate (e.g. on ground, gusts hitting the static port no longer make an IVSI flicker up and down) and faster (cutting the time it takes the pressure wave to move from the static port to the place where the actual measurement takes place).

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