I will take out my navy manual and perform the calculation which was derived from tabulation, mathematics, and empiricism and says nothing about the shape of the earth.
Can't speak to Navy manuals, but the FAA makes it pretty clear that a globe earth needs to be factored in when it comes to navigation - See chapter 16 for starters:
https://www.faa.gov/regulations_policies/handbooks_manuals/aviation/phak/media/pilot_handbook.pdf
No it does not so quit being such a disingenuous asshat!
The use of the term "globe," in ONE spot in a 728 page manual in writing concerning air pressure and changes...
Please demonstrate for all here how the word "globe," within the context of this phrase:
"Since weather stations are located around the globe, all local barometric pressure readings are converted to a sea level pressure to provide a standard for records and reports. To achieve this, each station converts its barometric pressure by adding approximately 1 "Hg for every 1,000 feet of elevation. For example, a station at 5,000 feet above sea level, with a reading of 24.92 "Hg, reports a sea level pressure reading of
29.92 "Hg. [Figure 12-8] Using common sea level pressure readings helps ensure aircraft altimeters are set correctly, based on the current pressure readings.
By tracking barometric pressure trends across a large area, weather forecasters can more accurately predict movement of pressure systems and the associated weather. For example, tracking a pattern of rising pressure at a single weather station generally indicates the approach of fair weather. Conversely, decreasing or rapidly falling pressure usually indicates approaching bad weather and, possibly, severe storms." impacts the air pressure reference.
The writer could just have easily written "flat earth," in the same space and there would have no impact on the information.
Why don't you go "stash," your idiocy back on the other site?