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Old September 8th 08, 10:57 PM posted to rec.aviation.piloting,aus.aviation
Sr20goer
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Default Flight Data Recorders


"Bertie the Bunyip" wrote in message
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"Sr20goer" wrote in
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"GB" wrote in message
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Michael Henry wrote in
news:00d3a924$0 :

SNIP

GB
You referring to INS?
But they do now use GPS for 'local' navigation (SID, STAR, flextrack
etc). Brian



No, they use GPS to update the INS.
Bertie


Bertie
Can we call it one all?
I'm talking of the derivation of the nav data - the GPS engine is used for
local navigation data, how it gets to the display may well be via the INS
but the GPS engine is still the source.
cheers
Brian