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How does the engines of an aircraft make the aircraft move when the aircraft weighs more than the total thrust? For example, let's say that an aircraft weighs 500000 pounds and has 2 engines producing 80000 pounds of thrust each. How does 160000 pounds of thrust move a 500000 pound aircraft? I'm so confused...
Powered aircraft are pure Newtonian devices. That is, if you push against something, that something pushes back against you. A jet engine produces thrust by shoving air out the back at high velocity. As it pushes the air backwards, the reverse force pushes the plane forward. [This is not that different from blowing up a balloon and releasing it. Air escapes out one direction, and the balloon is forced the other.]
As for how it works when the total engine thrust is so much less than the max gross weight of the aircraft - remember, it is not trying to LIFT the entire weight of the aircraft with the engine force. Think of your car out there in the relatively flat driveway. It may way between 1 and 2 tons - but you can still push the car. You can even get it going several miles per hour - as long as you keep pushing. [The force you apply by pushing is cumulative (minus losses).]
By the same means, that jet thrust starts the plane rolling down the runway, faster and faster. The engines are NOT producing lift - just push. But the resulting airflow over the wings produces lift (why? different topic), and that causes the aircraft to climb. Engines continue to produce thrust, plane goes faster and faster, and plane climbs more.
BTW, there ARE planes where the jet thrust is equal or greater than the weight of the plane. Advanced fighter jets are frequently almost all engine - have a thrust to weight ratio that is greater than 1.0, and can (for a while, at least) climb straight up.Powered aircraft are pure Newtonian devices. That is, if you push against something, that something pushes back against you. A jet engine produces thrust by shoving air out the back at high velocity. As it pushes the air backwards, the reverse force pushes the plane forward. [This is not that different from blowing up a balloon and releasing it. Air escapes out one direction, and the balloon is forced the other.]
As for how it works when the total engine thrust is so much less than the max gross weight of the aircraft - remember, it is not trying to LIFT the entire weight of the aircraft with the engine force. Think of your car out there in the relatively flat driveway. It may way between 1 and 2 tons - but you can still push the car. You can even get it going several miles per hour - as long as you keep pushing. [The force you apply by pushing is cumulative (minus losses).]
By the same means, that jet thrust starts the plane rolling down the runway, faster and faster. The engines are NOT producing lift - just push. But the resulting airflow over the wings produces lift (why? different topic), and that causes the aircraft to climb. Engines continue to produce thrust, plane goes faster and faster, and plane climbs more.
BTW, there ARE planes where the jet thrust is equal or greater than the weight of the plane. Advanced fighter jets are frequently almost all engine - have a thrust to weight ratio that is greater than 1.0, and can (for a while, at least) climb straight up.
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As all we know, when we take by airplane, we see airplane is very big, and there many people in airplane, but why airplane can move, maybe many people has this confuse. If an object wants to fly, it must first have its own power system, and secondly, it must use upward thrust from the air. So airplane also needs these two conditions. The power system of an aircplane is the engine it carries. The engine provides power support to the airplane by burning chemical fuels.The design of airplane wings can help the airplane gain an upward thrust with the help of air.The streamlined design of the fuselage also helps to reduce the air resistance of the airplane as it flies forward in the air. When the airplane is ready to take off, the engine starts, giving the airplane a forward thrust and accelerating forward motion. Because the wing of the airplane is designed to be straight under the bend above, there will be a relative velocity between the wing and the air when the airplane moves forward, and the air will be divided into two streams by the wing. According to Bernoulli's principle, the airflow velocity passing through the surface of the wing is small and the airflow velocity passing through the flat surface under the wing is large. At this time, the airflow under the wing pushes the wing upward more than the airflow above the wing pushes the wing downward, thus giving the aircraft an upward force. And the greater the speed, the greater the difference between the two, and the greater the upward force. So when the speed of the aircraft forward to a certain extent, the upward force will be greater than the gravity of the aircraft, the aircraft will then start to fly upward.
So there are many factors about airplane can move, such as diesel engine, the design of airplane itself, air conditions etc. More question about diesel engine, maybe you can see at:https://www.dieselgeneratortech.com/dies...As all we know, when we take by airplane, we see airplane is very big, and there many people in airplane, but why airplane can move, maybe many people has this confuse.
If an object wants to fly, it must first have its own power system, and secondly, it must use upward thrust from the air. So airplane also needs these two conditions.
The power system of an aircplane is the engine it carries. The engine provides power support to the airplane by burning chemical fuels.The design of airplane wings can help the airplane gain an upward thrust with the help of air.The streamlined design of the fuselage also helps to reduce the air resistance of the airplane as it flies forward in the air. When the airplane is ready to take off, the engine starts, giving the airplane a forward thrust and accelerating forward motion.
Because the wing of the airplane is designed to be straight under the bend above, there will be a relative velocity between the wing and the air when the airplane moves forward, and the air will be divided into two streams by the wing.
According to Bernoulli's principle, the airflow velocity passing through the surface of the wing is small and the airflow velocity passing through the flat surface under the wing is large. At this time, the airflow under the wing pushes the wing upward more than the airflow above the wing pushes the wing downward, thus giving the aircraft an upward force. And the greater the speed, the greater the difference between the two, and the greater the upward force. So when the speed of the aircraft forward to a certain extent, the upward force will be greater than the gravity of the aircraft, the aircraft will then start to fly upward.
So there are many factors about airplane can move, such as diesel engine, the design of airplane itself, air conditions etc. More question about diesel engine, maybe you can see at: https://www.dieselgeneratortech.com/diesel-engines/
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Jet engines move the airplane forward with a great force that is produced by a tremendous thrust and causes the plane to fly very fast. ... As the jets of gas shoot backward, the engine and the aircraft are thrust forward. As the hot air is going to the nozzle, it passes through another group of blades called the turbine.
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A true helicopter is one of the more complex flying machines, pound for pound, that there is. And it is much more difficult to fly than a conventional fixed wing aircraft (about six times the workload for the pilot). Having said that, I am going to assume that you are thinking along the lines of "Hey, wouldn't it be great to put some parts together and have my own little helicopter for flying around." And yes, it would.
Specifically, most folks putting together a homebuilt aircraft or helicopter based around an automotive engine seem to like the engines in Subaru Jettas and the like. However, if you can get something like an IO-360 from Lycoming or TCM (perhaps surplus, parted our from an old airplane), that will produce more power per pound. But I warn you, a helicopter takes a LOT more than just hooking an engine to a rotor.
Probably a lot more practical - look into some of the ultralights. If you really want a helicopter-like vehicle, consider a gyrocopter. A heck of a lot simpler to build. With an "pre-rotate" feature, they can almost take off from a standing start, and have a very short landing roll. Look into a magazine called "Kitplane" for some ideas, and join EAA (Experimental Aircraft Association). Good luck, and fly safe.
That would be the ground prox system on the aircraft it lets the flight crew know how far they are above the ground during an approach to the landing runway.
It is MD11 not MD10! And the MD11 is a totally different airplane hence its own type rating. 737's are the same type but pilots still need to attend upgrade school if moving up to the max 8 from say a -200.
Its easier to control the airplane with that balance, a twin like that would be easier than a single for the same reason that the prop rotation makes the plane easier to turn to one side than the other.
The DC10 was an excellent aircraft, with a long and successful service history. They are still flying in many countries, and in the US you see lots of them with the freight haulers.
There were, unfortunately, a few (very few) high profile crashes - which is probably what you refer to. The infamous "engine drop" issue was bad maintenance - not a problem with the aircraft design. And the Sioux City crash (pilot Al Haynes) was caused by a truly unlikely event that simply proves that even low odds can happen. [An uncontained blade failure on the #2 engine ejected "just right" (or just wrong) and cut the one small spot where all the control surface hydraulic lines came briefly together.]
The reason that DC10's are no longer in primary service is attributable to two things:
1. Older fuel hungry engines (3 of them), compared to the more fuel efficient twin engine design. And the changes to ETOPS regulations that now allow twin engine airliners to fly trans-ocean.
2. Certification of the aircraft with a three-person crew, in stead of the cheaper two-person flight crew common now. [The freight haulers get around this by cross training the loadmaster (only needed on the ground) to also be the flight engineer (only needed in the air).
Powered aircraft are pure Newtonian devices. That is, if you push against something, that something pushes back against you. A jet engine produces thrust by shoving air out the back at high velocity. As it pushes the air backwards, the reverse force pushes the plane forward. [This is not that different from blowing up a balloon and releasing it. Air escapes out one direction, and the balloon is forced the other.]
As for how it works when the total engine thrust is so much less than the max gross weight of the aircraft - remember, it is not trying to LIFT the entire weight of the aircraft with the engine force. Think of your car out there in the relatively flat driveway. It may way between 1 and 2 tons - but you can still push the car. You can even get it going several miles per hour - as long as you keep pushing. [The force you apply by pushing is cumulative (minus losses).]
By the same means, that jet thrust starts the plane rolling down the runway, faster and faster. The engines are NOT producing lift - just push. But the resulting airflow over the wings produces lift (why? different topic), and that causes the aircraft to climb. Engines continue to produce thrust, plane goes faster and faster, and plane climbs more.
BTW, there ARE planes where the jet thrust is equal or greater than the weight of the plane. Advanced fighter jets are frequently almost all engine - have a thrust to weight ratio that is greater than 1.0, and can (for a while, at least) climb straight up.
I just started 6 weeks ago and I've gotten 2 check for a total of $2,200...this is the best decision I made in a long time! "Thank you for giving me this extraordinary opportunity to make extra money from home. This extra cash has changed my life in so many ways, thank you!"
Visit site:http://Theprocoin.com
As all we know, when we take by airplane, we see airplane is very big, and there many people in airplane, but why airplane can move, maybe many people has this confuse.
If an object wants to fly, it must first have its own power system, and secondly, it must use upward thrust from the air. So airplane also needs these two conditions.
The power system of an aircplane is the engine it carries. The engine provides power support to the airplane by burning chemical fuels.The design of airplane wings can help the airplane gain an upward thrust with the help of air.The streamlined design of the fuselage also helps to reduce the air resistance of the airplane as it flies forward in the air. When the airplane is ready to take off, the engine starts, giving the airplane a forward thrust and accelerating forward motion.
Because the wing of the airplane is designed to be straight under the bend above, there will be a relative velocity between the wing and the air when the airplane moves forward, and the air will be divided into two streams by the wing.
According to Bernoulli's principle, the airflow velocity passing through the surface of the wing is small and the airflow velocity passing through the flat surface under the wing is large. At this time, the airflow under the wing pushes the wing upward more than the airflow above the wing pushes the wing downward, thus giving the aircraft an upward force. And the greater the speed, the greater the difference between the two, and the greater the upward force. So when the speed of the aircraft forward to a certain extent, the upward force will be greater than the gravity of the aircraft, the aircraft will then start to fly upward.
So there are many factors about airplane can move, such as diesel engine, the design of airplane itself, air conditions etc. More question about diesel engine, maybe you can see at:https://www.dieselgeneratortech.com/dies...
Alaska Airlines has flights to more than one hundred goals in the adjoining United States, Alaska, Hawaii, Canada, Costa Rica, and Mexico. The fifth-biggest aircraft in the United States, Alaska Airlines is a noteworthy air transporter and, alongside its sister carrier Horizon Air, is a piece of the Alaska Air Group.
Visit for more:https://reservationsnumber.org/alaska-ai...
Skyo Promotional code is an online book shop where parents and students could rent or buy cheap textbooks thus saving more on book costs. Over 5 million book titles from a variety of categories are available here in hardcopy or digital format, brand new or used copies.https://uttercoupons.com/front/store-pro...
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