Physics of a Plane Crash :: physics airplane landing land

There is an old saying that any landing you tail assembly walk away from is a good landing. There is a lot of truth to this statement, especially if you are the one walking away. Here are the stories of ii such landings that I am personally familiar with. Since they are both very similar in nature, they will be discussed simultaneously in the pages to fol starting time. N9KF was a Model 1 Kitfox. It was built and flown by my father. The Kitfox is an experimental, homebuilt kit plane. Every plane, like every person, has a story. This is the story of N9KF or at least the story as I know it. NEWTONS LAWS - A Brief ReviewNewtons First Law An object remains at rest/motion unless an external soldiery acts upon it.(Newman)Newtons encourage Law The acceleration of a body or object is directly proportional to the net force acting on the body or object and is inversely proportional to its mass. (F=ma)(Newman)Newtons Third Law For every action force, there is an equal and opposit e reaction force.(Newman)Forces of FlightLIFTLift is generated by the radiate flow around the planes wing. This effect is explained mostly by Bernoullis Principle which states that the pressure of the air decreases as the velocity of the air increases. The design of a planes wing changes the flow of air around the wings surface. The air has farther to travel over the top of the wing than the air traveling below the wing. Therefore, the air traveling above the wing is traveling at a higher velocity than the air traveling below it. As air flows around the wing, a high pressure region with low air velocity is created below the wing, and a low pressure region with high air velocity is created above the wing. The difference between the two pressures generates the overthrow force. (JEPPESEN 1-11)Newtons third law, stated above, explains how the remaining airlift force is produced. Lift is generated when the air hits and is deflected off of the underside of the wing. This deflection of air downwards, in turn, causes an upward lift force on the wing since there must be an equal and opposite reaction force.(Newman) This force accounts for a relatively small portion of the total lift generated for a wing.(JEPPESEN 1-13)WEIGHTWeight is one of the opposing forces to lift. From Newtons second law, the weight of an object is the magnitude of the force of gravity on that object.