page 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/archive/nasa/casi.ntrs.nasa.gov/19940020279.pdf

page14:

a) The earth is flat and non-rotating.

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19790005472.pdf

page 25:

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

If the earth is flat, shouldn't the temperature be the same across the whole planet

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

page 19:

These equations assume a rigid vehicle and a flat, nonrotating Earth.

https://www.nasa.gov/centers/dryden/pdf/88733main_H-2465.pdf

page 14:

(2) A flat, nonrotating earth

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19710018599.pdf

Newtonian gravity is a force. GR is the curvature of spacetime.

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

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

You want more?

That moment when NASA confesses flat earth

That's a lot of papers that "flat earthers dont have".

No

lmao

No, please no more lol

@Timebomb REKT

Did any flat Earthers create a scientific article with a model and everything?

I don't fully believe in flat Earth

I'm atheist

That moment when nasa has been to space and has brought back picture evidence of the earths curvature

That is old, old news, too.

Lord forbid you should you should actually read the links, just keep living in your bubble.

I'm an atheist

That has what to do with the FE?

Obviously for simplicity’s sake keeping the earth stationary for experiments and tests and stuff would be beneficial

Lol

I'm also an atheist

If you didn't know

Sorry

I'll stop

@Mr. Lea You keep mentioning it

So yes I get it

😃

#1 - Derivation and Definition of a Linear Aircraft Model:
https://www.nasa.gov/centers/dryden/pdf/88104main_H-1391.pdf
"aircraft of constant mass, flying in a stationary atmosphere over a flat nonrotating earth."
(page 35 of pdf & page 30 of doc) (last page of pdf & page 102 of doc)

#2 - User's Manual for LINEAR, a FORTRAN program to derive Linear Aircraft Models:
https://www.nasa.gov/centers/dryden/pdf/88072main_H-1259.pdf
"aircraft flying in a stationary atmosphere over flat nonrotating earth"
(page 16 of pdf & page 12 of doc)

#3 - User's Manual for LINEAR, a FORTRAN program to derive Linear Aircraft Models:
https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19890007066.pdf
"rigid aircraft flying in a stationary atmosphere over a flat nonrotating earth."
(pg 16 of pdf & pg 12 of doc)(pg 19 of pdf & pg 15 of doc)

#4 - User’s Manual for Interactive LINEAR, a FORTRAN Program To Derive Linear Aircraft Models:
https://www.nasa.gov/centers/dryden/pdf/88112main_H-1443.pdf
"stationary atmosphere earth over a flat, nonrotating earth." (pg 15 & 125 of pdf)

#5 - An Aircraft Model for the AIAA Controls Design Challenge:
https://www.nasa.gov/centers/dryden/pdf/88248main_H-1777.pdf
"aircraft flying in a stationary atmosphere over a flat nonrotating earth"
(page 13 of pdf & page 11 of doc):

#6 - The Engineering Analysis and Design of the Aircraft Dynamics Model For the FAA Target Generation Facility: https://www.faa.gov/about/office_org/headquarters_offices/ang/offices/tc/about/campus/faa_host/labs/tgf/media/AircraftDynamicsModel.pdf
"The observant reader will notice that the aircraft equations of motion were calculated
assuming a flat Earth" (page 62 of pdf & page 32 of doc)

#7 - Flight Dynamics Summary:
http://www.aerostudents.com/courses/flight-dynamics/flightDynamicsFullVersion.pdf
"There is a flat Earth. (The Earth’s curvature is zero.)"
"There is a non-rotating Earth. (No Coriolis accelerations and such are present.)":
(sec. 1.1.2 on page 1)

Good

Yay I’m bronze now

I think being an atheist has a lot to do with my beliefs

Jeez you must have the copy paste on standby lol

Especially how the earth was made

I wonder how flat Earthers will explain things like StarLink