this post was submitted on 23 Nov 2023
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That just means you can't use autoland in low visibility conditions. Modern IRUs (inertial reference unit) are highly accurate laser gyros that can use GPS for correction, but will throw out the data if it doesn't make sense. Navigation won't be affected much, and autoland (if used) will still rely on VHF guidance.
How do IRUs work do to give you location?
They know where you took off from, and can detect your movement with precision.
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