what makes an aeroplane fly?

Answer 1

The wings are designed so that when the air passes around them, the air pressure above the wing is lower than the pressure below them, so the plane will rise. The same principle applies to the propellers or the propeller part in jet engines -- when the propeller spins, it is designed so the air pressure "behind" the propeller blade is greater than the pressure in front of the blade, so the plane is pulled forward.

Answer 2

I always check other responses to see whether someone mentions Bernoulli. They always do, and are always wrong: Bernoulli has nothing to do with it. (Were it otherwise, an airplane could not fly upside down, which of course they can do quite nicely as long as the engine will work that way.) The correct answer: the slope of the airfoil with respect to the airstream. (The angle between the airfoil and the airstream is called the angle of attack.) If the angle of attack is not zero, the airstream will be deflected downward, and the reaction force (Newton's third law) results in an upward force on the wing. The downward-moving air creates what is called wake turbulence, so an airplane must not follow another airplane too closely.

Answer 3

Jet Propulsion, the imparting of forward motion to an object, as a reaction to the rearward expulsion of a high-velocity liquid or gaseous stream.
A simple example of jet propulsion is the motion of an inflated balloon when the air is suddenly discharged. While the opening is held closed, the air pressure within the balloon is equal in all directions; when the stem is released, the internal pressure experienced by the balloon is less at the open end than at the opposite end, causing the balloon to dart forwards.
A jet engine does not operate quite as simply as a balloon, although the basic principle is the same. More important than pressure imbalance is the acceleration to high velocities of the jet leaving the engine. This is achieved by forces in the engine that enable the gas to flow backwards forming the jet. Newton's second law shows that these forces are proportional to the rate at which the momentum of the gas is increased. For a jet engine, this is related to the rate of mass flow multiplied by the rearward-leaving jet velocity. Newton's third law, which states that every force must have an equal and opposite reaction, shows that the rearward force is balanced by a forward reaction, known as thrust. This thrusting action is similar to the recoil of a gun, which increases as the mass of the projectile, its muzzle velocity, or both, are increased. High-thrust engines, therefore, require both large rates of mass flow and high jet-exit velocities, which can only be achieved by increasing internal engine pressures and by increasing the volume of the gas by means of combustion.

Answer 4

Money!!!
Actually, the theory(s) on this would take up pages to describe
See How It Flies by John S. Denke
http://av8n.com/how/

Hey duckman, Bernoulli is only part of the equation, Newtons laws come into effect as well. there is really no short answer. Angle of attack....yes but that changes with speed, so that is only a small part of the equation.(that helps explain how an plane flays inverted)
See denke's article, he explains it well IMO

rhsaunders..Bernoulli has NOTHING to do with it.? TRY reading Aerodynamics for Naval Aviators. I believe you will be pr oven WRONG
mathematically!!

Answer 5

well,the engine,the oil fuel and 2 wings sure does make aeroplanes fly up to the skies

Answer 6

What makes airplanes fly are the 4 forces of flight, thrust, provided by making use of the engines, propelling the plane forward, bring up pulling the plane up, drag pulling the plane back, and weight, or gravity pulling the plane down. How lots an plane weighs, relies upon on the plane. Small 4 seater training planes, consisting of Cessna 172s weigh approximately 2000 kilos. commercial planes, consisting of 747s, weigh approximately 430 much.

Answer 7

What you really need is the book, Stick and Rudder, by Wolfgang Langewiesche. This is the "bible" of pilot training. Found on Amazon.com at $24.95 usual price, on sale and in stock for $16.47. Don't let the title or age of the book fool you, it is still recognized as the authority on how airplanes fly.

Answer 8

The air flowing under the wings at a certain rate of speed creates "lift" and raises the airplane.

Answer 9

when in the sky, speed and wings are the two main sources for a plane to fly

Answer 10

The pilot that hasn't been hanging out in the Pilot's lounge drinking vodka tonics between flights.