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Old 30th Jul 2003, 12:47
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compressor stall
 
Join Date: Feb 2000
Location: 500 miles from Chaikhosi, Yogistan
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sunrise algorithm alt correction
Trying to work out an excel spreadsheet that compensates sunrise sunset times for the effect of the observer's altitude.

I have Ed Williams Avformulary but that's for sea level...

Any pointers?
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