Dynamic's of flight.
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This document provides an overview of the dynamics of flight, including: - What air is and how it behaves when heated or cooled - How wings generate lift through faster-moving air on the top creating lower pressure - Isaac Newton's three laws of motion and how they relate to the forces acting on a plane in flight - The four main forces of flight: lift, drag, weight, and thrust - The sound barrier and how shockwaves form as planes exceed the speed of sound - The different regimes of flight speeds from seaplanes to hypersonic flight
Dynamic's of flight.
- 1. Dynamics' of flight Mazen Mohamed tarek presented to :Dr,Mohamed abassy
- 2. Contents What is air ? How wings lift the plane . Laws of motion . Forces of flight . Regimes of Flight .
- 3. What is air ? Air is a physical substance which has weight . Moving air has force . Hot air expands and spreads out and it becomes lighter than cool air . In 1640, Evagelista Torricelli discovered that air has weight. When experimenting with measuring mercury, he discovered that air put pressure on the mercury .
- 4. How wings lift the plane ? air moves faster, the pressure of the air decreases. So the pressure on the top of the wing is less than the pressure on the bottom of the wing. The difference in pressure creates a force on the wing that lifts the wing up into the air.
- 5. Laws of motion Sir Isaac Newton proposed three laws of motion in 1665. These Laws of Motion help to explain how a planes flies . 1. If an object is not moving, it will not start moving by itself. If an object is moving, it will not stop or change direction unless something pushes it . 2. Objects will move farther and faster when they are pushed harder . 3. When an object is pushed in one direction, there is always a resistance of the same size in the opposite direction .
- 6. Forces of flight Four forces of flight Lift - upward Drag - backward Weight - downward Thrust - forward
- 7. Sound Barrier Sound is made up of molecules of air that move When a plane travels the speed of sound the air waves gather together and compress the air in front of the plane to keep it from moving forward. This compression causes a shockwave to form in front of the plane
- 8. Regimes of Flight • Sometimes called speeds of flight, each regime is a different level of flight speed. Seaplane General Aviation (100-350 MPH). Boeing 747 Subsonic (350-750 MPH).
- 9. Regimes of Flight Concorde Supersonic (760-3500 MPH - Mach 1 - Mach 5). Space Shuttle Hypersonic (3500-7000 MPH - Mach 5 to Mach 10).
- 10. Thank you ….,,