Report on Description of the problem

        In the childhood period I want to discover new things through the help of paper. I have designed the paper helicopter and paper plane also. I was interested in making the paper helicopter the most because it is easier to make and also very low amount of skills are required to make a paper helicopter. But when I was in my childhood period I was unaware of the drawbacks why this paper helicopter is not perfect. At that stage there are not many resources to make a paper helicopter ideal. There are many materials through which this helicopter can be designed. In that part of the age I was unaware of these materials and then after this in that stage of the life I am aware of these materials through which the helicopter can be designed. In this experiment we will perform different tests on the paper helicopter and calculate the total hover time of the helicopter.

Objectives of the problem

    The main objective of this experiment is to design the paper helicopter better so that its hover time can be increased. For analyzing the hovering time of the paper helicopter the first objective is to identify the desired output we required so this will be our response variable. After this the next task is to define the good helicopter and also the type of material required to build a good helicopter. The good helicopter is one that stays for a very long time in the air means to say that its hover time is very high. This means that if the paper helicopter is dropped from the certain height and it will stay in the air for a long time so its means that this helicopter is good. The test conditions must be applied on the paper helicopter.

Outcome variables of the problem

    The outcome variables are responsible for influencing the flight time of paper helicopter. These outcome variables are the wind, the indoor environment and the martial of the paper.

Outline factors of the problem

        There are some factors of the paper helicopter that needs to be identified and must be test during the flight time of the paper helicopter. These factors are included like the type of paper that may be rough paper, smooth paper and may be hard paper the next factor is the length of the rotor the length not be too long or too short the length of the two legs are equal and also their width must be equal too. The flight time of the helicopter is calculated through the use of two different paper materials and also with shorter and longer length of its leg, also through removing the paper clip and with paper clip and also with long rotor and short rotor.

Main factors of the problem

    For setting the paper helicopter there are some main factors that are involve in disturbing the hover time of the paper helicopter that include the paper type, length of the rotor, leg length and width and in the last the paper clip on leg of the paper helicopter.

Analyze the experimental results of the problem

For analyzing the data the main point is to set the design summary of this paper helicopter.

The initial model was saturated. The stepwise procedure removed the following terms in order
     to obtain sufficient degrees of freedom to begin: Lengh of rotor*Leg Width, Leg length*Leg
     Width, Leg length*Paper type, Leg Width*Paper type

Analysis of Variance

Model Summary

In the model summary the regression value seems ok at 73% to conduct the experimental results because this means that the flight time that is a dependent variable it is only 73% dependent on the independent variable and this is ok because during the experimental results other minor factors also involve rather than these factors like the wind, air, moisture, type of paper etc.

Regression Equation in Uncorded Units

Alias Structure

Factorial plots

From the factorial graphs of this experiment it can be seen that the three factors that are involved in changing the flight time of the paper helicopter that include the length of the rotor, the leg width and the paper clip on. It can be seen that the leg width has a great impact on the mean time of the flight.