Thrust from rocket engines(or jet engines) is not lift. The force they genarate is perpindicular to the focre genarated by lift. All of the lift being genarated in front of the CG would cause the rocket to pich over and crash back into the ground.
The amount of lift made has a lot to do with the angle of attack, the angle between the relative wind and the mean chord of the wing. While the space shuttle is in gliding flight, it flew with a very nose high attitude in a reasonably steep descent, thus the angle of attack. Under rocket power on ascent, the relative wind would be coming pretty much nose on, so a very low angle of attack, thus very little lift.
If the angle of attack goes negative, the wing will lift in the other direction, which is how planes can fly upside down.
Thrust from rocket engines(or jet engines) is not lift. The force they genarate is perpindicular to the focre genarated by lift. All of the lift being genarated in front of the CG would cause the rocket to pich over and crash back into the ground.
Aerodynamic lift has a lot to do with angle of attack. Source: I am a flight instructor.
Wings still genarate lift when in a vertical climb. The force genarated is reative to the wings not gravity
The amount of lift made has a lot to do with the angle of attack, the angle between the relative wind and the mean chord of the wing. While the space shuttle is in gliding flight, it flew with a very nose high attitude in a reasonably steep descent, thus the angle of attack. Under rocket power on ascent, the relative wind would be coming pretty much nose on, so a very low angle of attack, thus very little lift.
If the angle of attack goes negative, the wing will lift in the other direction, which is how planes can fly upside down.