How an aircraft flies?
602579
Forces Acting on An Airplane\nThere are four forces acting on the airplane all the time during airplane is flying.The four forces are\n(1) Lift, (2) Gravity force or Weight, (3) Thrust, and (4) Drag.\nLift and Drag are considered aerodynamics forces because they exist due to the movement of the Airplane through the Air.\nWeight: The weight acts vertically downward from the center of gravity (CG) of the airplane.\nThrust: is defined as the forward direction pushing or pulling force developed by aircraft engine . This includes reciprocating engines , turbojet engines, turboprop engines.
480159
An airplane's design helps it create and maintain lift and thrust. A needle's does not.
2504
More than Bernoulli's principle and wing shape (airfoil) are at work in keeping a plane in the air. The main criteria is the  "angle of attack" of the wing. That is, the angle at which the wing meets the air passing by it. When a plane is flying, its wing is always at a positive angle of attack; the leading edge of the wing is higher relative to the air going over it than the trailing edge. So the air pushes the wing up.  When the plane is inverted, the angle of attack must be great enough to overcome the "negative lift"  created by the airfoil. This is accomplished by adjusting the elevator. Inverted flight will always require the input of down elevator.
1163348
You might be taking the phrase a bit too literally, because if you want to literally do this, you might have to knock off all the controls and instruments in a modern aircraft!\n\nBefore airplanes had sophisticated instruments and flight control systems, and even today, planes are piloted by feel. Pilots can feel the reactions of the plane in response to their actions at the controls.\n\nBeing the largest point of contact between pilot and plane, most of the feel or feedback comes through the seat of the pants.\n\nIf you are "flying by the seat of your pants" your are responding to the feedback received.
462882
an airplanes wings are shaped specially to create an upward force on them called "lift.'\n\nessentially, it forces air to flow over top of them, which creates negative pressure on the top side of the wings, causing the plane to "float" on top of the air, but only when going faster than certain speeds.\n\nA boat floats because it displaces more water than its own weight, causing it to be less dense then the water, and making it float on top.
32
A helicopter gets its power from rotors or blades. When its rotors are spinning, a helicopter doesn't look much like an airplane. But the rotor blades have an airfoil shape like the wings of an airplane. So as the rotors turn, air flows more quickly over the tops of the blades than it does below. This creates enough lift for flight.
556604
In very simple terms, think of a windmill / wind turbine as the oposite of a fan... instead of the fan blades turning and blowing air, the air is blown on the blades which makes them turn instead.\n\nThe aerodynamics involved in this process is quite complicated, but it is the same principle as an aeroplane wing... \n\n1. The wind passes over both surfaces of the blade \n2. It passes more rapidly over the longer (upper) side of the airfoil, creating a lower- pressure area above the airfoil. \n3. The pressure differential between top and bottom surfaces results in a force, called aerodynamic lift and turns the blade.
508347
It needs air to fly.  However, it can use very thin air.  One idea for using the space plane is to fly it out of the atmosphere, where its engine will cease to function.  The plane then glides as far as it can outside the atmosphere.  As it begins loosing altitude (because it is on a suborbital trajectory) it reenters the atmosphere and the SCRAM jet engine will work again.  It keeps skipping across the top of the atmosphere this way until it reaches its destination.\n\nThis trick saves a lot of fuel because aerodynamic drag is minimal while the plane is outside the atmosphere.
629527
Pilots have to adjust their flight paths to compensate for the Coriolis effect.  This is something we can calculate.
1014429
They do fly.\n\nWhere are you getting your misinformation?
1103380
We are fairly close.  The current generation of jets are what is called fly by wire.  What this means is that computers deliver all the commands that make the aircraft fly.  Airbus, for example, does not use the conventional aircraft steering yoke (steering wheel) but uses a joystick beside the pilot.  Both Boeing (an American aircraft manufacturer) and Airbus (located in Europe) say their new aircraft can indeed take off, fly to a destination, and land the aircraft by inputting the origin and destination locations.  This is as close as we are presently to flying a plane by "pushing a button".\n\nHope this helps and isn't too complicated.  Maybe some day I will fly on an aircraft of his design!
436750
You asking if it can be done, or will someone do it?\nIt can be done. The autopilot on aircraft is just a computer program, and any computer program can be modelled. However, I doubt if you are going to find someone to do it as it would be really complex.
663205
How Thrust is Created\n\nA jet engine's one purpose is to create enough thrust to zip you and your luggage across the sky. What's thrust? It's power, the force that pushes you deep into your seat as you speed down the runway for takeoff.\n\nBasic Scientific Principles Behind Jet Propulsion\nNewton's Third Law of Motion\nFor every action, there is an equal and opposite reaction. Thrust is created when air is pushed through a jet engine at a higher speed (velocity) than that of the air entering it. This force propels the plane forward. Imagine an inflated balloon that is released -- the pressurized, escaping air propels it forward.\n\nBernoulli's Principle\nFaster moving air exerts less pressure on surfaces than slower moving air.\nThe shape of the wing (an airfoil) is what allows the airplane to fly. The arched top of the wing forces air to travel faster and over a greater distance than air flowing across the flat bottom. The faster moving air exerts less pressure than the slower air on the bottom, thus creating lift. The blades of a propeller are also airfoils. The "lift" they generate pulls the plane forward.\n\nBoyle's Law\nThere is a relationship between a fixed amount of air's pressure and volume.\nWhen air is squeezed into a smaller volume Ð compressed Ð its pressure increases proportionally. Unless the temperature is held constant by external means, it will rise with pressure. In a jet engine, superheated, pressurized air is mixed with jet fuel and ignited.\n\nThe Basic Components\nIn its simplest form, a jet engine has three major components, called the core: \nCompressor: A series of blades or airfoils, some rotating (rotors) some stationary (stators), that draws air in and compresses it. More complex engines will have many rows of blades. As the air moves through these rows, its pressure will increase by as much as 40 times and the temperature will rise dramatically. \nCombustion Chamber: The compressed air is then pushed rearward into the combustion chamber. In the combustor, fuel injectors mix jet fuel with the air and it is ignited. The flow and burn of the air/fuel mixture is controlled to ensure that the engine sustains a continuous flame. The expanding exhaust gases flow quickly toward the rear of the engine. \nTurbines: The speeding gases that exit the combustor exert force against the turbine blades (airfoils), similar to the way a gust of wind spins a windmill. The turbine is connected to the compressor by a shaft. The force Ð or energy Ð created by the turbine spins the compressor, which pulls in more air, beginning the whole cycle again. The compressor is actually powered by the air it has already fed through! \nAll of these components are housed in a durable metal casing that is then installed into the nacelle, a megaphone-shaped engine enclosure that is mounted to the airplane's wing or fuselage (body).
509502
A plane can fly until it runs out of gas or conditions cause it to no longer have lift to allow it to fly.\n\nModern planes, however, oftentimes have the ability to refuel during flight as well as avoid conditions that cause it to no longer have lift so its entirely possible for planes to fly indefinitely.
532059
When planes fly west to east, they can often go into the jet stream, which can add 100 or more miles per hour to their speed.  When flying in the other direction, they must fight this wind.  At the very least, they can fly above or below it, which reduces its effect, but they still have a ground speed of less than planes flying the other direction that can use the jet stream's assist.\n\nIt's the difference between trying to row a boat upstream vs. downstream.
460474
HI MAWBY --\n\nI ANSWERED THIS YESTERDAY IN SOME DETAIL.\n\nPLEASE GO TO THE SITE AND QUESTION BELOW.\n\nITS IN THE AILERONS, TABS, AND ELEVATORS.
329678
European aerospace researchers have shown the first prototype of a planned "flapless" unmanned air vehicle. The unmanned vehicle controls aerodynamics with air jets. See the article below in EE Times Magazine 3 April 2006 By R. Colin Johnson entitled "Tomorrow's aircraft flies without flaps". Unfortunately the graphics seem to be missing from the website.\nhttp://www.embedded.com/showArticle.jhtml?articleID=184417252&pgno=1\n\nhttp://www.EETimes.com