20 NASA.gov FOIA Link: page 6 summary "flat, non-rotating Earth" (www.nasa.gov) posted 2 years ago by LeoDavid 2 years ago by LeoDavid +20 / -0 63 comments share 63 comments share save hide report block hide replies
Yeah so you never calculate for curvature, and they tell you to do the math assuming a flat Earth.
No. The math ur applying is lift weight balance etc. Navigation is a different subject and yes you calculate curvature. Its possible to do a triangle with 2 90 degree turns on the globe
https://s3mn.mnimgs.com/img/shared/discuss_editlive/5956792/2013_11_18_09_51_46/image1477904103093019129.jpg
only on paper.