Why don't we use an airplane to fly into the space?

Question

I watched the news the other day, French doctors did successfully an operation in the state of the gravity which was zero.
So if the airplace could fly to reach that height, why don't we fly at that level ?

Answer 1

You are confusing the state of zero gravity with the height of outer space.

When an airplane is in free-fall(ie.. falling as fast as gravity pulls it down) a zero-gravity environment exists inside (i could explain why, but just trust me on this.) In orbit of the planet earth, at a level that is technically outer space, a zero gravity condition only occurs when the spaceship is also in free fall... it doesnt have to do whether you are in the atmosphere or not.

Regarding your question "Why don't we use an airplane to fly into the space?"
The simple answer is that airplanes fly by basically pushing the air down under their wings, which pushes the plane up into the sky. In the upper atmosphere the air gets thinner, requiring more and more force to push enough air down to push the plane up.
In outer space there is basically no air at all, thus rendering the phsyics the allow an airplane to fly useless.

Answer 2

Because rockets are cheaper. It IS possible to create an aircraft that can "fly" into space. But the structural demands on such a craft mean that it will cost tremendously. Think of the famous X-15 rocket plane; it could fly right up to the edge of space. But to keep going, it would have to keep accelerating to orbital velocity. Also, look at the recent "Spaceship One" flights for the X-prize; a similar sort of thing whereby a mothership carries a space plane up to a very high altitude, and a rocket motor takes over, pushing the craft beyond the atmosphere.

Still, the design headaches are enormous. It's a lot easier to make a small capsule reentry ready; look at the long record of the Soyuz spacecraft. And the booster rocket isn't a big deal; when all it has to do is accelerate, then fall to earth, it's pretty easy to design. Spaceplanes have been kicked around as the way to get into space since the 1950's, but the conventional rocket is much easier to configure and design with today's technology.

Answer 3

First off, the surgery you mention was performed in a specially designed airplane which simulates zero gravity by making steep dives, which last no more than 20 seconds. The operation consisted of over 20 of these maneuvers, with pauses in between to climb back up to altitude for another dive. The airplane was not in space, although it operated at a higher altitude than a standard passenger plane.

As for the question, most airplanes rely on turbojet engines to produce thrust, by igniting jet fuel with large amounts of oxygen. The fuel is stored onboard, while the oxygen is sucked in through the inlet at the front of the engine. As one goes higher into the atmosphere, the density of the air decreases, and therefore the amount of oxygen decreases. Eventually, in space, there is no oxygen to be used by the engine; therefore, the engine can't produce thrust, and the airplane can't move.

Answer 4

Aircraft can find zero gravity by attaining altitude and then nosing over at a steep angle and diving to attain the speed that keeps us at zero gravity. Somewhat like when a car goes over a small hill and leaving the ground momentarily.

A conventional aircraft cannot fly into space because it has a fuel/air burning engine. It would need sophisticated rockets and controls to attain space flight.

Answer 5

Airplanes are in a position to fly because air shifting lower than their wings is adequate to carry them up. in case you would possibly want to slice throughout an airplane wing, you would possibly want to work out that's curved intense and flat on the bottom. because the airplane's engines push the wing ahead, air strikes over and lower than the wing. because the right of the wing is curved and the bottom is flat, the air going above has a touch farther to vacation than the air going lower than. The air molecules on suitable are subsequently a touch farther aside, making the air there a touch thinner, and the rigidity on the right of the wing fairly lower than the rigidity on the bottom. large passenger planes won't be able to fly a lot more suitable than about 12 kilometers (7.5 miles). The air is in simple terms too skinny above that altitude to carry the airplane up. some styles of planes can fly a lot more suitable, and one particular NASA airplane, named Helios, flew to about 30 kilometers (19 miles), it quite is a few distance more suitable than the different airplane has traveled. At that altitude, the air is one hundred cases thinner than at sea element. The air receives thinner and thinner the better you bypass, till there isn't regularly any air in any respect. In different words, that's almost a vacuum up there. Even the bottom Earth-orbiting spacecraft orbit at round 2 hundred kilometers (one hundred twenty 5 miles) above Earth's floor, some distance above the thick air we are conscious of and far more suitable than any airplane can attain. To get an airplane to even the bottom Earth orbit, an exceedingly large rocket is critical.

Answer 6

It takes two different types of crafts to fly in the atmosphere and outside the atmosphere. At this time it isn't cost effective to build one that will do both. There has been talk however of building an intercontinental aircraft that flies on the outer edge of the atmosphere. It would sort of skim or skip on the edge. Something akin to skipping a rock across the surface of the water.

Answer 7

The airplane didn't reach outer space. It went into a dive that produced the feeling of weightlessness, that was described as having zero gravity. In fact the entire plane was falling very fast during that time.

Planes cannot get to outer space as there is no air out there to lift the plane's wings.

Answer 8

Yes AIRPLANES DO FLY INTO SPACE. DON'T YOU ALL REMEMBER THE X-15? How does Mach 7 sound to you?

The propulsion system doesn't matter as long as the aircraft have wings used to maneuver it is an airplane.

It is too darn expensive and risky to operate at that altitude and speed.

Answer 9

Its not the hieght! they go just high enogh, to allow them to circle, in a descending path, to simulate zero gravity, like a falling lift.
Ever been in a fast hospital lift, you feel momenterialy wieghtless, its the same principal. Its not true zero gravity, but moving and falling so as to cancell out the effects of gravity.
Planes do launch the space shuttle. Wings as such, do not help with space travel, its about resiliance to heat on re entry, and initial thrust to break free from gravity. Planes are not suitable.

Answer 10

The airplane only simulated gravity by perform several manoeuvres as for using a airplane to get in space there is the shuttle which is damn near close to a airplane