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Hands on experience with aircraft pitch control
This document discusses aircraft pitch control and stability. It describes how aircraft have three axes of flight and must be stable and controllable around these axes. It defines pitch as rotation around the lateral axis, which is stabilized by the horizontal stabilizer and controlled by the elevator. The elevator is a movable part of the horizontal stabilizer that is used to control the pitching motion of the aircraft. When the pilot pulls back on the yoke, the elevators move down which increases lift at the front of the plane and causes the nose to pitch up, increasing altitude.
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Hands on experience with aircraft pitch control
- 1. AIRCRAFT PITCH CONTROL Submitted To– Mr. Anshul Bansal Submitted By – Pankaj Aswal (14/609)
- 2. INTRODUCTION Aircraft havethree axes of flight which intersect at the center of gravity Aircraft must be stable around these three axes for controlled flight Aircraft must be controlled to rotate around these three axes to change direction
- 4. Longitudinal Axis Lateral Axis Vertical Axis AIRCRAFT STABILITY ANDMOVEMENT AROUND THREE AXES OF FLIGHT Roll Pitch Yaw
- 5. AIRCRAFT MOTION AND CONTROL AxisMotion Stabilized by Control Pilot Control Longitudinal Roll Wings Aileron Yoke twist left or right Lateral Pitch Horizontal stabilizer Elevator Yoke forward or aft Vertical Yaw Vertical stabilizer Rudder Rudder pedals
- 6.
- 7. ELEVATOR Moveable partof the horizontal stabilizer, hinged to the back of the fixes part of the horizontal tail. Elevator moves upwards or downwards to create a lift, resulting in a net moment about the CG of the plane. Raised elevator push down the tail and cause the nose to pitch up resulting in increase in angle of attack and consequently the altitude.
- 8. ELEVATOR when thepilot pulls the stick forward the elevators go down to increase the lift at the front and lift the nose up. It result in motion about the direction of wing(Y-axis) of the airplane and is called PITCHING MOTION. Elevator controls the latitudinal motion and are therefore called LONGITUDINAL CONTROLS.
- 9. AIRCRAFT PITCH STABILITY ANDCONTROL
- 10.
Editor's Notes
- #3 Aircraft stability is the characteristic of an airplane in flight that causes it to return to a condition of equilibrium, or steady flight, after it is disturbed.
- #5 The axis of flight is oriented along the fuselage and along the wings. An aircraft is said to roll about the longitudinal axis. Its stability about the longitudinal axis is known as roll stability. An aircraft moving about its lateral axis is said to adjust its pitch or change its pitch attitude. Its stability about the lateral axis is known as pitch stability. An aircraft is yawing when moving about the vertical axis. Its stability about the vertical axis is known as yaw stability.
- #10 An aircraft climbs (ascends) when lift and thrust exceed weight and drag. An aircraft descends when the opposite is true. To climb a pilot inputs more thrust and pulls back on the yoke to raises the elevator for a pitch up attitude. To descend a pilot reduces power and pushes forward on the yoke to lower the elevator for a pitch down attitude.