zelfs NASA en US military zeggen dat het flat is anders zouden hun berekeningen niet kloppen met de werkelijkheid.
Propagation of Electromagnetic Fields Over Flat Earth
http://www.arl.army.mil/arlreports/2001/ARL-TR-2352.pdfpage 9: based upon the signal having a single bounce on a flat Earth
http://www.arl.army.mil/arlreports/2009/ARL-TR-4998.pdfpage 1:
Trajectoryof Spinning Projectiles These equations assume a flat Earth.
http://www.arl.army.mil/arlreports/2010/ARL-TR-5118.pdfPage 1:
so that a flat-earth approximation provides the best estimate
http://www.arl.army.mil/arlreports/2001/ARL-TN-175.pdfpage 1:
transmission loss over flat earth
http://www.arl.army.mil/arlreports/2000/ARL-TR-2156.pdfpage 9:
input to a flat earth
http://www.arl.army.mil/arlreports/2003/ARL-MR-563.pdfpage 3:
a flat Earth assumption
http://www.arl.army.mil/arlreports/2010/ARL-CR-650.pdfpage: 1
flat earth approximation provides the best estimate
http://www.arl.army.mil/arlreports/2002/ARL-TR-2683.pdfpage 32:
This model works well over a flat-earth
http://www.arl.army.mil/arlreports/2000/ARL-TR-1812.pdfpage 168:
equations of flat-earth trigonometry.
http://www.wsmr.army.mil/(...)andards/chapter2.pdfpage 8:
The Earth is flat and nonrotating.
http://www.navair.navy.mi(...)gRoom/NWC_TP5416.pdfpage 2:
"In this paper, the rigid body equations of motion over a flat
non-rotating earth "
https://ntrs.nasa.gov/arc(...).gov/20070030307.pdfpage 32:
"Lastly, the equations of motion for the zeroth-order problem of flight in a vacuum over a flat Earth are presented."
https://ntrs.nasa.gov/arc(...).gov/19940020279.pdfhttps://www.nasa.gov/centers/dryden/pdf/88507main_H-2179.pdfpage 14:
(2) A flat, nonrotating earth
https://ntrs.nasa.gov/arc(...).gov/19710018599.pdfpage 8:
the missile position in space is computed relative to a flat nonrotating earth.
https://ntrs.nasa.gov/arc(...).gov/20040008097.pdfpage:12
"aircraft flying in a stationary atmosphere over flat nonrotating earth"
https://www.nasa.gov/centers/dryden/pdf/88072main_H-1259.pdfpage 108:
aircraft flying over flat, nonrotating earth
https://ntrs.nasa.gov/arc(...).gov/19890005752.pdf page 126:
"The nonlinear equations of motion used are six-degree-of-freedom equations
sith stationary atmosphere and flat, nonrotating earth"
https://ntrs.nasa.gov/arc(...).gov/19890007066.pdfpage 2:
"The method is limited, however, to application where a flat, nonrotating earth"
https://ntrs.nasa.gov/arc(...).gov/19720012071.pdfpage 11:
"The nonlinear equations of motion used in this model are general six-degree-of-freedom equations representing the flight dynamics of a rigid aircraft flying in a stationary atmosphere over a flat nonrotating earth"
https://www.nasa.gov/centers/dryden/pdf/88248main_H-1777.pdfpage14:
a) The earth is flat and non-rotating.
https://ntrs.nasa.gov/arc(...).gov/19790005472.pdfpage 25:
The helicopter equations of motion are given in body axes with rerpect to
a flat, nonrotating Earth.
https://ntrs.nasa.gov/arc(...).gov/19810003557.pdfpage 13:
A model frequently used is that of a flat, nonrotating earth.
https://ntrs.nasa.gov/arc(...).gov/19650015408.pdfpage 19:
These equations assume a rigid vehicle and a flat, nonrotating Earth.
https://www.nasa.gov/centers/dryden/pdf/88733main_H-2465.pdfpage 9:
For aircraft problems, the state and measurement models together
represent the kinematics of a rigid body for
describing motion over a flat, nonrotating Earth
https://ntrs.nasa.gov/arc(...).gov/19880014378.pdfpage2:
In our minimum time-to-climb problem, the aircraft is modeled as a point mass and the flight trajectory is strictly
confined in a vertical plane on a non-rotating, flat earth.
https://ntrs.nasa.gov/arc(...).gov/20060053337.pdf