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Old 19th Aug 2013, 10:43
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Ian W
 
Join Date: Dec 2006
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Yes I understand the issue of the higher tower someone will have to see if the tower line of sight allows them to see the Benson residence.

However, I was raising the possibility of what I have now found out is called a 'Superior Mirage' that is a mirage that allows objects be seen 'over the horizon'. Here is one example showing what appears to be a hole in a hill.


from VLA Pic o' Day, 11/21/00

Any FAA assessment of the PAPIs and runway lighting would need to be done in identical meteorological conditions or any potential mirage would not be visible.

Why else would an experienced crew descend further and call 'runway in sight' after a 'SINK RATE' warning?



Edit to add a video URL

Here is a video from a weather helo - Viewing a superior mirage from Chopper 7 | Sam Argier's Weather Blog | www.kirotv.com
Last edited by Ian W; 19th Aug 2013 at 11:21.
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