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Embed code for: Paper plane(olivine Rainie Leo Andy Hank)
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Name of the Group: _________________________Policy Maker:_____________Score:_______/45
The forces that allow a paper plane to fly are the same ones that apply to real airplanes. A force is something that pushes or pulls on something else. When you throw a paper plane in the air, you are giving the plane a push to move forward. That push is a type of force called thrust.
While the plane is flying forward, air moving over and under the wings is providing an upward lift force on the plane. At the same time, air pushing back against the plane is slowing it down, creating a drag force. The weight of the paper plane also affects its flight, as gravity pulls it down toward Earth. All of these forces (thrust, lift, drag and gravity) affect how well a given paper plane's voyage goes.
Statement of the Problem:
Design and build a paper plane that can fly better than the others.
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 in the classroom.
Consider Problem (3pts)
The Design Brief
Background- Describe the problem – Provided but you need to improve. (see at the TOP)
As we all know, when the planes are flying, they need something to help it keep flying. Thrust, lift, drag and gravity affect how the planes voyage goes. When an airplane is flying straight and level at a constant speed, the lift it produces balances its weight, and the thrust it produces balances its drag. However, this balance of forces changes as the airplane rises and descends, as it speeds up and slows down, and as it turns. So the paper planes have the same principle. In addition, paper plane is a kind of toy that we all have played when we are children. The creation of the aerodynamics also can be the masterpieces that the adults study in. So how to create a excellent plane is the question that we need to involve. The most important thing is the plane should fly far, stable, and stay in the sky for a long so let's go and explore.
Describe the results you want to get – Provided but you need to improve.
Design and make a paper plane and let it fly farther than 15m and it can stay in the sky for a time more than 7s.
Add Specifications. (see at the TOP)
The paper plane should fly farther than 50 ft. from the point of reference so the best paper(materials),structure are the things that we need to figure out. In addition it should be strong and good looking, and finished to a high standard. Also we need to combine some ideas and solutions to our final design to make it better and the last but the least is make it can fly far, stable, and stay in the sky for a long time.
Research Solution (10pts) Brainstorming
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.
1.The head of the planes show be heavier and it could as heavy as the tail of the plane.Because the heavy head can help the paper plane be more stable and stop it from whirling in the flying process.But if it became to heavy it can not fly very far.
2.The center of gravity of the plane should in the front to help being stable.
3.The plane should be symmetrical because symmetry can keep the balance of the paper plane
4. The upside and downside’s pattern of the airfoil are different. So during the same time, the air on the upside flow more than the downside, and the air on the upside flows quickly than the air on the downside. So the upside of the airfoil should be curved and the downside of the airfoil should be straight
5. Because of the Computational fluid dynamics, the pressure on the upside is smaller than the pressure downside, so it become a buoyancy to let the plane fly up.
6. The angles of the airfoil should go up, it seems like a letter Y when you see it .
7. The cusp of the airfoil should be small, because it can decrease the resistance in the air.
According to above, we decide to make a plane which can reach those requirement.
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.
An airplane in flight is always in the middle of a tug-of-war with the four forces.
For an airplane to takeoff, thrust must be greater than drag and lift must be greater than weight.
To maintain level flight, lift must equal weight and thrust must equal drag.
For landing, thrust must be less than drag, and lift must be less than weight.
A tail is also needed to balance the pitching moment (tendency to make the plane rotate nose up or down) caused by flaps. Flaps are the control surfaces on the back edge of the wing which are deflected down to allow the plane to takeoff and land slower. The tail of a real plane usually also has a vertical tail. The vertical tail acts like the fins of an arrow to keep the nose of the plane pointed in the direction its headed, this is called positive directional stability. The Fuselage (center body of a plane, on paper airplanes its the part you hold for throwing) acts like the vertical stabilizer of real airplanes. Sometimes bending the wingtips up on paper airplanes also helps to add directional stability. The combination of the fuselage and wingtips on paper airplanes allows them to have positive directional stability without a vertical tail.
Where a plane balances if it were supported at only one point is called the Center of Gravity .
The principle of the use of paper planes on a paper plane wing tail proper fold arc angle. For the sake of paper planes in the air glide more for a long time, it is necessary to reduce the possibility of any resistance can be formed, so the best when make paper airplanes, with tape to overlap on the wing surface of paper parts tightly. The center of gravity of the effect on the paper airplane flight of aircraft structure, paper materials, wing at the end of the arc angle, wing area, aircraft, the aircraft's weight and throwing angle, throwing power. Paper airplane structural elements: wing, nose heavier (because of the lift force in later such as die too light can not balance), moderate overall weight, balance, tail, or substitute four, paper planes, the basic flight essentials. Low flying: the super low altitude post flight ground, to the ground hard throw, the acceleration of gravity and lift the balance board and low altitude flight.
The horizontal tails on full size planes have an elevator (control surface across the back edge of the horizontal tail) which the pilot rotates (back edge) up to make the plane nose up and fly slower, or down to nose the plane down and speed up. Paper airplanes accomplish the same thing by bending the back edge of the wing up to fly slower, of down to fly faster.
An airfoil is a special shaped wing that forces air to move faster across the upper surface than it does across the lower surface. The faster moving air creates a low pressure area on top of the wing resulting in an upwards force from the higher pressure air below. The science behind this effect is explained by Bernoulli’s Principle. So I think we should make our paper plane's airfoil
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:
This kind of plane can fly for a long distance but it still needs develop because the head of the plane should be more heavier. When it is flying, it always up to the sky.
Materials to be used
Quantity （ numbers ）
Sketch paper to try the plane and decide the final plane
Scotch to connect with each other, to make
Rule to measure the scale
Scissor to develop the structure
Phone to measure the time
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.
Construction inprocess: Andy(big head)
1.Double up you A4 paper. 2. After folded the paper roll out, then there is a crease, according to this on both sides of a triangle fold crease
3.Then turns an acute triangle on this basis.
6. finished plane
4.Then double up. 5.Then turn on both sides, the two sides must maintain the same size, the size of the free, should be a little better
This kind of plane has big head but it is not heavy so it cannot fly for a long time and it can be controlled by wind.
This kind of plane can stay in the sky for a long time and it can rotate for many times.
1. Double up you A4 paper two times. 2.Then fold a rectangle on the base 3.put the right horn to the opposite line made by floding,and left as well.
4.Then turns an acute triangle on the overlapping part. 5.turn the spare parts over
6.fold the paperand turn on both sides, the two sides must maintain the same size. 7.Then there is a paper plane
This kind of plane has big airfoil so the flow speed on the upper side can be quick and the pressure can be small, so it becomes a force to let it up but it just fly for a moment.
1.fold up one time 2. Let the top of A4 paper become 2 angles 3. Fold up like this
Become two angles again 5. Fold up the little triangle like this
Foloil like this 7.finished plane
This kind of plane is very stable no matter the upper side or down side the plane can fly in a long distance
1.Double theA4 paper 2.then make the top as two triangles 3. Double the two sides like this
4. fold up the top like this 5.folio the paper like this
6.then double it again 7.the as the other side 8. Finished plane
Because this kind of plane’s head is heavier than others so it is strong enough.
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.
The quantity is two light, we cannot control by ourselves.
The wing’s surface area should be change because of the force.
The wing should be increased because it cannot fly for a long time.
Wind and power
Increasing the weight of the head.
Wind, we don’t like it.
The same as square head
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:
We change the the head of the plane to a square head so it can fly farther, our final design is these 3 pictures.
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.
O( ∩ _ ∩ )O
Members: Olivine, Rainie, Leo, Andy, Hankimensions: