Here are some of the documents used in Pastor Dean's message “Government Documents Admit Flat Earth:” Russia 1948 Shape of the earth unknown.. https://www.cia.gov/library/readingroom/docs/CIA-RDP80-00809A000600231031-1.pdf Russian Light Study “Brightness of the firmament” Flat earth : https://www.cia.gov/library/readingroom/docs/CIA-RDP86-00513R001343720008-3.pdf Government Definition of Geoid https://www.ngs.noaa.gov/GEOID/geoid_def.html Propagation of Electromagnetic Fields Over Flat Earth http://www.arl.army.mil/arlreports/2001/ARL-TR-2352.pdf page 9: based upon the signal having a single bounce on a flat Earth http://www.arl.army.mil/arlreports/2009/ARL-TR-4998.pdf page 1: Trajectory of Spinning Projectiles: “These equations assume a flat Earth.” http://www.arl.army.mil/arlreports/2010/ARL-TR-5118.pdf page 2: “These equations assume a flat Earth..” http://www.arl.army.mil/arlreports/2011/ARL-TR-5810.pdf page 216: "assuming a flat Earth" http://tycho.usno.navy.mil/ptti/2007papers/paper21.pdf Page 1: “...so that a flat-earth approximation provides the best estimate.” http://www.arl.army.mil/arlreports/2001/ARL-TN-175.pdf Page 39: model works over a flat earth http://www.arl.army.mil/arlreports/2003/ARL-TR-2696.pdf page 1: transmission loss over flat earth http://www.arl.army.mil/arlreports/2000/ARL-TR-2156.pdf page 9: “...input to a flat earth” http://www.arl.army.mil/arlreports/2003/ARL-MR-563.pdf page 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.pdf page: 1 flat earth approximation provides the best estimate http://www.arl.army.mil/arlreports/2002/ARL-TR-2683.pdf page 32: This model works well over a flat-earth http://www.arl.army.mil/arlreports/2000/ARL-TR-1812.pdf page 168: equations of flat-earth trigonometry. http://www.irig106.org/docs/106-17/106-17_Telemetry_Standards.pdf page 8: The Earth is flat and nonrotating. http://www.navair.navy.mil/nawcwd/command/Inplace.aspx/LoadFile/531 General 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.pdf Approximate 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.pdf SR-71 Page 8 “...nonrotating Earth...” https://www.nasa.gov/centers/dryden/pdf/88507main_H-2179.pdf page 14: (2) A flat, nonrotating earth https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19710018599.pdf page 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.pdf page 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.pdf NASA Technical Paper 2835 September 1988 Page 1 Summary: Flat nonrotating earth Last page 126: "The nonlinear equations of motion used are six-degree-of-freedom equations with a stationary atmosphere and flat, nonrotating earth" https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19890007066.pdf Determination 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.pdf An 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.pdf Investigation 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.pdf A 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.pdf Atmospheric 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.pdf Stability and Control Estimation Flight Test Results for the SR-71 Aircraft With Externally Mounted Experiments NASA June 2002 page 18-19: “These equations assume a rigid vehicle and a flat, nonrotating Earth.” https://www.nasa.gov/centers/dryden/pdf/88733main_H-2465.pdf Flight 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.pdf Time 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