/sci/ - Science & Math

>>16184195
I look like this

>>16184195
Suppose you were in an aircraft that, including its pilot, has a density equal to that of air at your altitude.
Suppose it generated no lift. It doesn't need to.
Speeding up would bring you onto an orbital trajectory an an higher altitude.
Because speeding up means you wouls increasingly escape. But now less dense air would probide less lift.
Now imagine your aircrafts density would always follow that of the athmosphere surrounding it.
You'd have to rely on its control surfaces to follow earths curvature as you speed up. Increase the speed and set the control surfaces to neutral and you'll escape tangentially, on a curved trajectory. The faster your speed the less curvature to your trajectory.

>>16184195
Earth's circumference at ground level is 40 000 km.
Mach 3 is 1000 m/s or 1 km/s
A full revolution is therefore at least 40 000 s which is 11 hours.

I hope it is obvious that the adjustment to the stick is utterly insignificant.

>>16184261
Flatties aren't too good with numbers

>>16184261
That's around half a degree every minute. Fly 10 minutes and you're already 5 degrees off. If you're going in a straight line.

>>16184383
The pilot won't need to adjust their stick in a straight trajectory at constant altitude. Gravity does it for you, more or less. However the stick will be at a slightly different position than if the earth were flat, which could indeed be measured, although there are easier ways to observe that the earth is round.

>>16184391
>slightly different position than if the earth were flat
Bro, if the Earth were flat you'd fucking crash into the ground after a while. There'd be less and less air and you'd fly more and more upwards.

>>16184400
Well maybe I'm assuming it's flat and goes on forever, smarty pants.

>>16184401
That's what I assumed as well.

>>16184406
So you assumed it's flat and goes on forever, but there's less air over there than over here? A quaint set of assumptions.

>>16184410
How do you think gravity works

>>16184439
You seem to be under the impression that my flat earth hypothesis is "serious". It's not. I don't think the earth is flat. Did you even read my posts? I know how gravity works, at least Newtonian gravity. As for GR, well I did a course but I only know the basics. Back to the hypothesis, obviously it would entail an assumption that gravitational acceleration is also uniform. How would that work? I don't know. As your mom.

>>16184195
It's important for IMUs https://en.wikipedia.org/wiki/Schuler_tuning

In kerbal space program if you let games stability assist hold a vector, yes you do need to pitch down occasionally to correct for curvature.

>>16184195
The curvature of the earth is basically nothing in comparison to a change in altitude you'd get from a slight jerk of the stick due to human error, or even a gust of wind. As a pilot, you keep an eye on your altimeter and your airspeed, and you adjust accordingly. Or autopilot does it for you.