if theres no gravity then anyone could fly, so
yes it is true
Planes are able to fly against gravity by conquering it with another force. This force happens to be the lift created by the wings of the aircraft wihch allow it to fly.
So you don't fly away.
Air planes are affected by gravity too, just like everything else. What makes them fly is that the upward force of the wings is bigger than the downward force of gravity.
Because their wings/rotors are able to create an upward force bigger or equal to the pull of gravity.
Then they don't go into space
The Army does not fly planes. The Marines, Air Force, Navy, National Guard, and Coast Guard do.
Thrust and Lift. Gravity and drag make planes more difficult to fly.
Birds fly in air. They use the air to fight gravity. When air travels faster along the upper wing than the lower wing, the air force down is less than the air force up -- really helps most birds. Gravity affects birds.
Gravity and aerodynamic resistance.
No. Planes fly horizontally, but the concept of horizontal depends on the direction of gravity. Gravity pulls towards the center of the Earth, so "down" at the poles is the same as "down" at the equator, i.e. towards the center of the Earth.
The force of gravity attracts objects to the centre of the earth. It does not let objects fly out of its pull.