When can a person fly? How long can an airplane fly?

As far as people themselves are concerned, they do not have the ability to fly. Now that technology has developed, people can soar in the air with the help of rocket backpack aircraft. The rocket-backpack is a single-person maneuvering aircraft, designed and manufactured according to the principle of recoil, relying on the injection of high-temperature gas to form thrust.

The human body structure is not suitable for flying, one has no wings, even if there are wings, the beating speed of the human arm is too slow to provide lift, the second is that the human heart and lung function do not support flight, the third is that the body is too heavy, especially the bone structure is not suitable for flight, the bones of birds are hollow, and the fourth is that the human body is not streamlined, and it is not easy to maintain balance in the air.

It is impossible for people to fly, and they can only fly with the help of some aids, such as taking an airplane.

People can fly, do airplanes can fly, but. Some say that they can do light work and can fly.

It should be said that it is impossible for people to fly on the earth, and if they want to fly, they only need to use external forces to mount an airplane and a rocket.

This question is a bit fanciful, and it's not impossible to fly.

Of course people can't fly, can they still be called people?

There are generally three indicators of the life of an aircraft, according to the flight life of an aircraft, the service life of an aircraft is about 25 years and 30 years. The 10-year-old civil aircraft is in the prime of life, but the comfort and fuel economy indicators will not be as good as the new passenger aircraft, so airlines will generally replace the new passenger aircraft, and the old passenger aircraft will be converted into cargo aircraft.

There are three main indicators that determine the retirement time of an aircraft: the number of takeoffs and landings, flight hours, and flight years.

The take-off and landing life of mainline aircraft is about 40,000 times, and regional aircraft can reach 60,000 times; Most aircraft have a flight duration of around 60,000 hours; The flight age, i.e., the age of the aircraft, is around 25 - 30 years. The three indicators are based on the first arrival, and the number of takeoffs and landings has the greatest impact on the life of the aircraft.

At present, the average age of civil aircraft in the world is 10 years, but in terms of performance, it is far from the time of scrapping, and with regular maintenance and maintaining good flight condition, it is not a problem to fly for 30 years or more.

Of course, the retirement of the aircraft does not necessarily mean that it cannot fly, and whether the aircraft can be retired must also be determined according to the development plan of the airline, and a comprehensive evaluation will be carried out according to the change in the asset value of the fleet, comfort, dispatch rate, maintenance cost, etc., to determine whether to dispose of and transfer early.

About 10 20 years, Air China's Boeing 747-400 has been in service for 28 years and has not been retired.

According to the reference of the situation that I flew up in my dream, note that it is in a dream.

Dreams are different from reality, or they are not identical, everything is relative, and the amount of matter is not subject to human will. I only provide opinions and some ideas, and the following content is for reference only. If you cause any undesirable effects or accidents, you will be responsible for the consequences.

People can fly. There is no need for other tools (technology).

The two legs should cooperate, take the cross-legged posture as the posture, and do the guidance of the coordinated flight together with the upper limbs, the body method, the mental method, especially the spirit must be highly concentrated but not too nervous and forceful, control the operation of the limbs with the mind, rise up little by little, look up with the eyes while flying, and look down when falling. The dwell time is very short (no more than 1 minute) and is further shortened if it is not limited to deliberate or without touching a reference object at height. Note:

This flight refers to the upward elevation of the body (flying) to a certain height (usually about 3 meters). ) and then slowly fall. Cannot fly horizontally forward or backward.

No, because the earth has a strong attraction, if you leave the earth, you can fly freely, on the earth, on the contrary, the earth is a very large magnetic field that can absorb the human body and not fly easily, if not, the gravitational man can fly on the earth.

According to scientists, humans can fly like birds if they can strappen plastic wings 1 meter long and 40 centimeters wide around their arms and wave their arms up and down more than 20 times a second.

Opinion: People can fly.

Reason: Comparing people to a mobile phone, now people only have 2% of the electricity, has entered the low power protection, many functions can not be used, if the coincidence of the charge reaches 20%, 30% of people play more than 2% of the power of the ability to exceed the ability of cognition is normal. Some cultivators may have mastered the ability to charge, but the charging speed is very slow, in the same way, a person with 2% power will live for 100 years, so a person with 100% power will live longer.

So it is very likely that it will fly, because it may be that this is just one of the abilities that humans will emit in the future, and when humans charge 100% or maybe lower, it will be beyond the control of this world, and it may reach the so-called 4 latitudes.

Yes, plug in the wings of your dreams and fly with hope!

Flying is impossible.

However, it is true that you can fly the eaves and walk the wall through exercise.

Just like gymnasts now.

When I was in junior high school. I also had the experience of leaving the ground. I can't believe it until now. I can fly home. But only about five meters above the ground. It couldn't be any higher.

The longest flight in the world, up to 19 hours, leaves the plane with weak legs.

The longest commercial flight in the world is currently from Singapore to Los Angeles in hours, which means that a passenger needs to spend almost 19 hours in the cabin. So do you think that the longest flight time of an airplane is only a few dozen hours? Wrong!

The longest flight time of an airplane in the world is 64 days, 22 hours, 19 minutes and 5 seconds, which was created by Robert Thiem and John Cook of the United States in 1958. And the aircraft that achieved such a long flight was the legendary Cessna 172. [The picture below is the record-setting Cessna 172].

The plane is extremely maneuverable, extremely reliable, and the best part is that it can fly at very low speeds and still maintain enough lift, so that a slightly faster car can keep up with the plane and keep up with it – in fact, the fuel needed for this plane is replenished in this way. [As shown in the figure below, a moving truck is refueling the aircraft].

Although the plane is not short of fuel, due to the lack of maintenance of the plane's continuous flight, many parts on it have been damaged, including the starter, tachometer, autopilot, cabin heater, landing lights, fuel gauge, electric fuel pump, etc., and the pilot of the aircraft is also close to the limit. [As shown in the picture below, it is a group photo of the plane after landing].

So, as long as a very reliable machine has enough power, it can run for more time than we can imagine.

The X-37B is a top-secret American vehicle [pictured below], which was launched into space by a rocket and orbited in space for more than 270 days - this can be regarded as the "flight time" of the aircraft.

The other is research into solar-powered aircraft, which is being carried out around the world [as shown in the figure below]. This kind of aircraft relies on solar circuit panels to power supply, can fly at an altitude of more than 20,000 meters for a long time, so as to obtain continuous and uninterrupted solar power supply, theoretically can fly for several months or even years, with the characteristics of "quasi-satellite", so it has great use in military and civilian use.

The plane should be able to fly in the sky all the time as long as the fuel is sufficient, but it can't fly in the sky casually, because it will disrupt the aviation order and line, so it is not recommended to fly in the sky all the time

I feel that the plane also has its own timetable, just like the train will have its own timetable, otherwise the flight route will be the same all the time, and it will collide together, so it is not recommended to fly all the time.

It should be two days, and the world's longest commercial flight is from Singapore to Los Angeles in hours, but that's not the limit of the plane, the limit should be flying back.

That's not something you can fly all the time! First of all, at night, when the vision is not very bright in the early morning, it has an impact, and the driver can not rotate continuously, but also eat, drink, sleep, and live, and it is not possible to meet stormy weather, and various reasons show that it is not possible to achieve the state of flying all the time.

I don't think I can fly all the time.

At the very least, the pilot's oxygen supply is not enough, and fuel can only provide flight power.

And there is wear and tear on the machinery, such as wings and other transmitters, which have to be maintained for a certain period of time.

In the case of sufficient fuel, it is possible to fly all the time, but even if there is more fuel, the engine will eventually be unable to withstand the continuous operation, so it is not always possible to fly when giving fuel, and other factors must be considered to avoid unnecessary trouble.

Theoretically, it depends on the upper limit of the person's physical fitness. The world's longest continuous flight record was on December 4, 1958, when Robert Timm and John Cook participated in a cancer** fundraiser and flew a Cessna 172 from McCarran Airport for 64 days, 22 hours, 19 minutes and 5 seconds. Food, water, and oil are supplied by pipes from vehicles traveling at the same speed on the ground.

The flight time of an airplane depends on the volume of fuel in its tank, and if you can ensure an adequate supply of fuel, as mentioned in the title, you can ideally fly all the time.

However, there will be wear and tear of aircraft parts during the flight, and it will also be affected by weather conditions, so the actual flight time will definitely not be flying all the time.

The record for the longest flight to be completed is 64 days, 22 hours, 19 minutes and 5 seconds, and was set by Robert Tim and John Cook in a small Sesna aircraft aboard the Grand Manor 172. They took off from McCarran Airport in Las Vegas, Nevada, United States at 15:53 local time on 4 December 1958 and landed at the same airport at 14:12 on 7 February 1959. Its flight distance is equivalent to 36 times the circumference of the Earth, and the refueling of the aircraft is done in the air without landing.

The fastest circumnavigation of the world.