Arrow IV altimeter
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On the altimeter just above the 5 there is a box with black and white stripes
what is it for i am sure i have seen it turn all white but i could be wrong
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The FAA Pilot's Handbook of Aeronautical Knowledge (PHAK) contains this explanation...
"A crosshatched area appears on some altimeters when displaying an altitude below 10,000 feet MSL."
The complete PHAK is available for download here... https://www.faa.gov/regulations_policies/handbooks_manuals/aviation/phak/
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@retiredman93231 thank you
