Message posted by Joerg (Webmaster) (Member since 10/17/2000) on October 31, 2021 at 14:29:24 PST:
The formula got a bit jumbled up. Here is another way to write it: 69,095 ft / 0.295 ft/px = altitude / (span / 400 px)
In Reply to: Re: Possible RQ-180 sighting posted by Joerg (Webmaster) on October 31, 2021 at 14:26:49 PST:
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