[StoyanNikolov]

Hi is it Convenient to ask if
someone can say for sure about this topic

https://aviation.stackexchange.com/q...le/99002#99002

or to verify through simulation.
Please consider Option 1.
The only difference is that
the tunnel is in Space/Low Pressure/Vacuum.

https://i.stack.imgur.com/NUm5O.jpg


Thank you.

[sbaffini]

That's not how lift works, and you basically received on SE a number of answers that, collectively, contain most of the reasons for which it wouldn't work. The only way for an object to propel itself in a medium without direct interaction with it is by expelling mass.

Any other approach is basically "what you do to the surrounding medium, it does it backward to your system". None of the options you considered has an interaction with the surrounding medium known to produce what we call lift and, actually, option 1 will just fall.

Lift has nothing magic in it, and it is just the same force you experience when you put your hand out of the car window, but done better and at much higher speeds.