Enter Into Joy

Friday, March 11, 2011

Principles of Flight 1.01

Air Dynamics 1.01

There are, basically, four forces of flight: lift, drag, thrust and weight.

1. Forward speed is necessary to fly.

2. For an object to fly, it must always engage in a tug of war between the opposing forces of lift versus weight and thrust versus drag.

3. Lift force points upward, opposite to the weight.

4. Thrust pushes the object forward, as drag slows it down.

5. The lift force must be greater than the weight and the thrust more powerful than the drag for the plane to fly.

6. If the thrust is powerful enough it will overcome weight and drag and the plane will fly.

7. Drag works against thrust to slow an aircraft.

8. The difference in speed between object and horizontally moving air increases as object increases speed.

9. If object is flat, it is pushed back. If object has speed and lift, it will fly.

10. Too much lift may cause aeronautical stall.

11. During take off and landing, it is necessary for a plane to fly as slowly as possible.


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