How Airplanes work and how has it changed

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Presentation transcript:

How Airplanes work and how has it changed By Will baxandall

Airplanes There are all different types of planes like army planes, jets, planes that take people to different places, remote control planes and much more.

An airplanes wings The magic behind a plane is the wings. If you look at an airplanes wing you will see flat on the bottom and curved on the top. This shape allows the air moving over the top of the wing to travel faster than the air moving under the wing. This creates lift that sucks the wing off the ground.

An airplanes wings Airplanes fly because there wings pull air above the plane downwards as they pass , creating big pressure downward moving air behind the airplane. The chunk of air pulled down by the wings as they pass can be huge. The wings exit a huge amount of force in order to drag all this air down behind them.

An airplanes wings The wings are long, narrow, flat and they are tilted slightly upwards. This causes air passing above the wing to speed up as the wing moves forward, while air passing below the wing slows down. As a result, the air flowing past the wing is yanked sharply downward as the wing passes. That huge downwash produces an equal opposite force that pushes the wing up.

How airplanes fly 4 forces keep an airplane in the sky and they are lift, weight, thrust and drag. Lift pushes the airplane up. The way air moves around the wings gives the airplane lift. The shape of the wings help with lift too. Weight is the force that pulls the airplane towards earth. Airplanes are built so that there weight is spread from the front to the back. This keeps the airplane balanced. Thrust is the is the force that moves the airplane forward. Engines give thrust to the airplane.

How airplanes fly Sometimes an engine turns much better. Sometimes it is a jet engine. It does not matter as long as air keeps going over the wings. Drag slows the airplane down. You cant feel drag when you walk against strong wind. Airplanes are designed to let air pass around them with less drag. An airplane flies when all 4 forces work together but most airplanes need 1 more thing: they need a pilot to fly them!

How airplanes have changed? Airplanes have changed in lots of ways like the wings , the size, the power and the airplanes engine. all the things that have changed help it fly

How have they changed? 1930 1940

How have they changed 1950 1960

How have they changed 1970 1980

How have they changed 1990 2000

How have they changed? 2013!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(now)

Thank you for Watching!!!!!!