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Embed code for: Paper plane project design 10A 02
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Name of the Group: Johnathan Jasmine Helen Sylvia Gevin
Policy Maker: Jasmine
Implementer: Sylvia, Gevin
The first evidence that paper airplane history has started in the aviation magazines from 1908 - 1909. They have contained articles explaining the use of paper airplanes for understanding and exploring the aerodynamics and aircraft design.
The principle of the paper airplane is the the same as the real airplane. Both of them us lift to fly. The hight of the airplane depends on lift. But what can effect lift? For the airplane, the shape of it’s wind, the way that how to fly the airplane and the density of the air are all effects of the lift. Also, the speeds of the air can affect the lift,too. As the speed increasing, the pressure will be lower, so the lift is equal to the air pressure that pushes the plane up minus the air pressure that pushes the plane down.
Statement of the Problem:
Design and build a paper plane that can fly better than the others.
Target audience: The kids who are interested in plane and physics.
Analyse the factor that can influence the effectiveness of flying paper plane
The paper plane should fly 50 ft. from the point of reference.
It should be strong, durable and finished to a high standard.
It must be possible to manufacture the design both in the indoor and outdoor situation.
The appearance should be simple but beautiful.
When it fly in the air, it should be steadily.
Consider Problem (3pts)
The Design Brief
Background- Describe the problem – Provided but you need to improve. (see at the TOP)
Describe the results you want to get – Provided but you need to improve. (see at the TOP)
Add Specifications. (see at the TOP)
Research Solution (10pts)
List/sketch possible solutions that might be used in your final design. Clearly identify and describe how each of these ideas relates to the problem statement.
List down and Sketch possible solutions generated from the ideas of the members of the group.
The most vital point to make a paper plane is balance, because if a paper plane is not balanced, when it fly, it will swings in the air. As a result, except the weight of the right airfoil must be equal to the left airfoil, the weight of the front part also must share the same weight as back part of the plane.
The center of the gravity must at the core of the plane, due to the fact that the paper plane must be balanced.
The elevating force is also essential, because it can decide how far a paper plane can fly.
Because elevating force is related to the area of airfoils if the paper plane needs keeping flying as long as possible, the area of airfoils must be a little bit greater. But it still need being proportional to the volume and weight of the airframe.
In most cases, when it comes to making a paper plane, most people will consider making the forefront of the plane as pointed as possible. But actually, it should not be like that. One of the principles of making paper plane is make forefronts blunt and flat, owing to the fact that making forefronts blunter can let the center of gravity be more front.
Another important condition is the materials of the paper plane. The types of the paper should not be so thick or hard, because if we use that kind of paper, the center of the gravity will be heavy. And if the center is not at the core of the plane, the paper plane will not fly steadily in the air. Moreover, it is difficult to fold paper if the paper is so thick or hard, owing to this, the thickness and hardness should be moderate.
Two airfoils are supposed to have curve, because greater velocity of flow results in smaller pressure. For example, there are two roads. One is 50 meters, and another one is 80 meters. If a person travels both roads using the same time, then he must travels faster while he is walking on the road which is 80 meters. It is the same as airfoils. The lengths of edges of curves are greater than the lengths of flat line, but air passes through the same airfoil using the same time. In consequence, if airfoils have curve, then the velocity of flow above the airfoils is greater, so the pressure above the airfoils is smaller than pressure under the airfoils. And owing to this, there will be a force to elevate the paper plane.
The paper which is used to make the paper plane is not expected to be coarse, on account of the air resistance. If the paper is so coarse, the air resistance will be greater than using smooth paper.
What is more, the angle of inclination is essential when paper planes start to take off. This angle cannot be so large or so small, because if it is so large, the distance of the paper plane flying will not be long. But if the angle of inclination is so small, the plane cannot fly highly or cannot keep in the air for a long time. As a consequence of this, the best angle of inclination when the paper planes take off is 45 degrees, because it is in the intermediate of 90 degrees.
Last but not least, different types of paper planes have different shapes, some of them have pointed end, some of them may have blunt end. As a result, we cannot judge a method of making paper planes by making sweeping generalizations. Instead of this, we need to select and learn the advantages of each methods or each kind of paper planes, and at last, we can combine different advantages from different methods and make our own paper plane.
Research and Generating Ideas – See what others have done to solve the problem.
In the space below, document your research. Be sure to include proper citations at the end of your notes.
From the research I learned the different between each type of the paper airplane. The pointed nose type plane can fly longer than the round nose one, but the round rose plane can fly longer. Since this project is made to test the distance of paper airplane, we should make the plane round nose. Also the lift is an important factor in the distance. In order to make the lift bigger, we can make bent wings. Last, the weight can also effect the distance. It is not necessary to make the plane as light as possible. The weight sometimes can help to keep balance.
*Front End Design is decided the stability of flight ， if try to fixed the nose can let the paper plane be able to fly in a long time and smooth.
*If the nose is too heavy because of the fixed, can adopt folding the wings a little bit up.
*The focus needs to be in the one third of the paper plane, to prevent the plane fly down or turn a big cycle.
*There are many courses in Internet, but it is more important to trim every details to improve the paper plane’ performance, so we can decide a kind of plane, than to change with the situation when our fly the plane.
*The paper plane ‘SKY KING’ is the paper plane could fly farthest in Guinness World Records, but the plane that official release is not the real one.
*Breath on the head of the plane. Most of people think breath on the head of the plane can let the plane fly more steadying, because breath can make some air into the plane and let the paper plane more like the high-Lift Airfoil.
1）Paper aerophane should not incorporate any additional material.
2）The paper should not be cut or torn to make sure that the plane is firm enough to fly.
3）Paper aerophane designs should be capable of approximately straight, level flight – provided they are calibrated correctly.
4）The plane must be tidy and so it can cut down the windage that the plane received.
5）The plane's weight must be kept to a minimum to help fight against gravity's pull to the ground.
When it comes to paper airplanes, the most two prior properties are ‘’flying far” and “flying steadily”. However, in most cases, each paper airplanes only have either property of them.
According to the information and pictures from websites, I found a common point which exists in those pictures. It is if you want to let the paper airplanes fly far, you must let the endpoint of the endpoints of paper airplanes be more pointed, due to the fact that this kind of plane can avoid less air resistance than other plans whose endpoints are blunt or round. The reason why more pointed paper airplanes can reduce more air resistance when it fly is that the pointed endpoint can let air flow pass their sides directly, especially when the front parts are strong and hard.
But for other paper airplanes, which have blunt or round endpoint, the air resistance is larger when they fly in the air. One of reason is air cannot flow directly at their right and left sides.
In contrast, for “flying steadily”, the paper planes which have blunt or round endpoints are better than other paper planes, owing to the fact that the center of gravity is more balanced. To compare with most paper airplanes whose endpoints are really pointed, this kind of paper airplanes has a relatively balanced gravity, and in other words, the center of gravity is more nearly to the center of the whole plane. But for other paper planes, if their front parts are too strong or too hard, they also must be heavy, so the center of gravity is at their front parts. And due to this, if their aircraft tails are not strong and high enough, they will tend to fly down and cannot keep steady when they fly in the air.
http://www.wikihow.com/make-a-paper-airplanehttp://www.wikihow.com/Make-a-Paper-Airplane (This is a great website.)
Airplane is a very technical project,it needs to consider many elements.Air plane's flying is the mutual result of lifting power and gravity. The weight of the airplane, who push the plane and user's propulsive force,form into a perfect balance, produce inertia
1:Symmetry is a very important point, plane wing's shape area decide how much wind will it carry.
2:The scale of wing and fuselage need be balanced,it decided center of gravity of plane. If center of gravityvery close to the front, head will hit the ground.But if center of gravity too close to back,plane will like a ball,only have inertia but no lifting power.
3:Throwing style is also important,it will decide how far this plane can fly. The best way is against weak wind, upward 15 degree angle.
Design and Develop (7pts)
Decide on one solution to solve the problem
Based on the evaluation of your ideas (Brainstorming and Research), develop a design proposal for the highest scoring idea. Include working drawings (sketches with dimensions, so that you could build your project). Attach your working drawings to this sheet. Determine the materials you plan to use based on your design. List the material and quantity below.
Drawings/Sketches of your final solution with dimensions:
Materials to be used
Work to create/Making a model or prototype (10pts)
In the space below, document the construction of the model/prototype. Be sure to include sketches/pictures as appropriate.
1) At first, you should get a paper whose shapes is rectangular.
2) Then, fold it along the centerline.
3) On one side of the paper, fold each coner towards the inside center line.
4) Fold the triangular part downwards.
5) Fold the two corner of the paper towards the center line, and the intersect point should on the centerline.
6) Turn the paper plane over and fold it half along the centerline.
7) Fold the first wing along the line. And the line depends on the position of the 1) At first, you should get a paper whose shapes is rectangular.
7) Fold the first wing along the line. And the line depends on the position of the
3)Fold two head corner to the centerline for outside
4) Then it will form into a triangle, fold this triangle for opposite side.
5) Get two angle of the opposite angle fold it to centerline, then you will get a small triangle.
6) Fold small triangle for opposite side.
7) Fold all paper to the centerline.
8) Use each sides, fold it, get the wings.
9) Push this paper, let it balanced.
10) Then you can fly it.
At first, you should get a paper whose shape is rectangular.
Then, fold it along the centerline.
On one side, fold the two corners towards the centerline.
Then, fold the big triangle down along the line which is approximately 2.5 centimeters far from the bottom of the big triangle.
After the shape of the paper become rectangular again, fold the upper right corner and the upper left corner toward the centerline.
Then, fold up the point (the little triangle) which is made of the two corners in the prior steps.
Turn the paper over; fold it in half along the centerline.
Next, fold one side flap down.
Then, turn it over to another side. Fold another side flap down.
Unfold the two side flaps at 90 degree to the main body of the paper airplane.
Now, you can fly it in the air.
Test Solution and Evaluate Solutions (5pts)
As you create your paper plane, you will perform tests to make sure that the paper plane is meeting the needs of the given problem. If your solution does not work, you may need to repeat the previous steps of the Design Process, until you find a functional design. In the space below, document the type of tests you conducted and the results.
Because of the wind, the plane can stay long but the distance is small
We use more power to throw the plane, so the plane can fly longer
We try to fly the plane outside and the speed become more faster
The speed is similar with the second time
From the testing, we know we should try another one, because the nose of the plane is too heavy
This is another plane. This plane is more light, and the bottom of the plane is more heavy
It is worse than the first one the distance and time are all short,because they go round
There are only one circle this time, because it is too light
This is the same with the tired time
This is the best test for High, because the wind is not that big, and we find a suitable place to fly
We try to change the weight and the center of gravity. At last, we find out a way to make the plane flying longer and stay longer in the air. The plane is turning round
The plane flies slowly because of the wind
The plane flies around and toward at the same time
This is the best test for this plane, because we know exactly how to fly
This is same as before
The average time of the plane is about 4s the average distance is about 22.6m. So Gold is the best plane for us
Refining the Design or Redesign (3pts)
Based on your tests, what design refinements should be made to your paper plane.
Drawings/Sketches of your Refinements:
Communicating processes and results (7pts)
Demonstrate the operation of your Paper plane to the class. As part of your demonstration, describe the steps involved in creating your design.
Make a ppt presentation or a video.
We try to change the weight and the