Here are some of the military & NASA documents that I used in my message “Government Documents Admit Flat Earth:”

Russia 1948

Shape of the earth unknown..

https://www.cia.gov/library/readingroom/docs/CIA-RDP80-00809A000600231031-1.pdfRussian Light Study

“Brightness of the firmament”

Flat earth :

https://drive.google.com/file/d/1KX7_0tlTAzFEWJ1CWOXQ_K2JnUgbfzb8/viewPropagation 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:

Trajectory of Spinning Projectiles:

“These equations assume a flat Earth.”

http://www.arl.army.mil/arlreports/2010/ARL-TR-5118.pdfpage 2:

“These equations assume a flat Earth..”

http://www.arl.army.mil/arlreports/2011/ARL-TR-5810.pdfpage 216:

"assuming a flat Earth"

http://tycho.usno.navy.mil/ptti/2007papers/paper21.pdfPage 1:

“...so that a flat-earth approximation provides the best estimate.”

http://www.arl.army.mil/arlreports/2001/ARL-TN-175.pdfPage 39:

model works over a flat earth

http://www.arl.army.mil/arlreports/2003/ARL-TR-2696.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:

“The first is the Earth-fixed coordinate system, which is fixed to the Earth with 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.irig106.org/docs/106-17/106-17_Telemetry_Standards.pdfpage 8:

The Earth is flat and nonrotating.

http://www.navair.navy.mil/nawcwd/command/Inplace.aspx/LoadFile/531General Equations of Motion for Damaged Asymmetric Aircraft

Page 1: “...equations of motions must properly reflect the underlying physics.”

page 2:

"In this paper, the rigid body equations of motion over a flat

non-rotating earth are developed...”

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20070030307.pdfApproximate Optimal Guidance for the Advanced Launch System

On page one this document does mention a spherical rotating earth but then states that “...these schemes” (based on a spherical rotating earth) 1) “...are difficult to prove” and 2) “...not suggested to be used as a basis for an online real-time guidance law.”

Page 32 goes on to say:

"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/archive/nasa/casi.ntrs.nasa.gov/19940020279.pdfSR-71

Page 8 “...nonrotating Earth...”

https://www.nasa.gov/centers/dryden/pdf/88507main_H-2179.pdfpage 14:

(2) A flat, nonrotating earth

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19710018599.pdfpage 8:

the missile position in space is computed relative to a flat nonrotating earth.

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20040008097.pdfpage 108:

aircraft flying over flat, nonrotating earth

page:12

"aircraft flying in a stationary atmosphere over flat nonrotating earth"

https://www.nasa.gov/centers/dryden/pdf/88072main_H-1259.pdfNASA Technical Paper 2835

Page 1 Summary:

Flat nonrotating earth

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/archive/nasa/casi.ntrs.nasa.gov/19890007066.pdfDetermination of Angles of Attack and Sideslip from Radar Data and a Roll Stabilized Platform

NASA

March 1972

page 2:

"The method is limited, however, to application where a flat, nonrotating earth"

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19720012071.pdfAn Aircraft Model for the AIAA Controls Design Challenge

NASA

1991

page 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.pdfInvestigation of Aircraft Landing in Variable Wind Fields

NASA 1973

page14 pdf or 6 on actual report:

a) The earth is flat and non-rotating.

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19790005472.pdfA Mathematical Model of the CH-53 Helicopter

NASA

page 17:

“The helicopter equations of motion are given in body axes with rerpect to

a flat, nonrotating Earth.”

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19810003557.pdfAtmospheric Oscillations

Georgia Tech April 1965

Prepared for NASA

page 13:

A model frequently used is that of a flat, nonrotating earth.

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.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.pdfFlight Testing a VSTOL Aircraft

NASA 1988

page 9 pdf or 4-5 on actual doc:

“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/archive/nasa/casi.ntrs.nasa.gov/19880014378.pdfTime to Climb

page2:

“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/archive/nasa/casi.ntrs.nasa.gov/20060053337.pdf