Well. According to the etymological dictionary "numerous" just means a number.

"numerous (adj.) early 15c., from Latin numerosus "numerous," from numerus "a number"

In regards to the specific details you mentioned. I admit I'll need to dig deeper but.. You claimed no one has circumnavigated north to south, and I found what appeared to be two different examples.. BUT.. If they truly are the same expedition and the other stuff you said is true, I will look into it and consider it.

It still seems incredibly unlikely that all of the explorer pilots in history are lying and that somehow no one has ever flown over the edge of the flat earth or taken pictures of it and that somehow the governments of the world have enough manpower to patrol the entire world and keep people away from the edge.