Each control surface on an aircraft has a hinge of some sort. By moving the control, there is an aerodynamic moment about the hinge. The pilot must provide the moment (force)to counter that hinge moment. The feedback of
this required force to the pilot is an additional cue to help him to fly the aircraft.
A block hour is the time from the moment the aircraft door closes at departure until the moment the aircraft door opens at the arrival gate following its landing.
There is a transponder in every plane which gives signal where the plane is going.
That's not true.
Gerald D. Budd has written: 'Predicted pitching moment of an X29A aircraft' -- subject(s): Pitching (Aerodynamics), Research aircraft
door hinges attached to door and hinge post
It is a beam that is attached at aboundary that is free to rotate, like a hinge. It cannot develop a bending moment. It is often used to idealize a simply supported beam
Hindge joint
yes. a sonic boom occurs when the aircraft breaks the sound barrier and all the time it is going faster than the speed of sound.
A hinge joint is not immovable. A hinge joint has one plane of motion. A good illustration of a hinge joint is the knee joint.
L. W. Bryant has written: 'The lateral stability of highly loaded aeroplanes' 'Measurements of rudder hinge moments on a model of a single-engined aircraft'
The knee is an example of a hinge joint, not a ball-and-socket joint.
A hinge joint is not immovable. A hinge joint has one plane of motion. A good illustration of a hinge joint is the knee joint.