# Analysis Of The Paper Helicopter Experiment

16.1 Flight Time of Helicopter Designs

The optimal design of a paper helicopter must consist of the best measured combination

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The wing length of helicopter 3 is larger than its base length, implicating that the surface area of the rotor is significant to the apparent size reduction of a smaller base length (Diagram 8.3). It is evident in Graph 15.1 that the larger rotor length and smaller base length is more successful than a smaller wing length and larger base length. According to Barsalou from Minitab (2016), the optimal design for a paper helicopter includes that of a smaller base length and larger rotor length. The larger wing/rotor span is theoretically supposed to apply more upward lift, thus increasing the paper helicopters flight

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The distance from the landing position to the centre of the coin would be the measure for the accuracy of each design. A low standard deviation and low average distance is clearly the best combination in order to determine the design with the best accuracy and consistency. According to results from table 11.2, helicopter 5 had the most consistent and accurate landing positions. The design had a 2:1 size ratio on the other helicopters making it presumably the most accurate and controlled helicopter. The increased surface area allows the position of helicopter during its fall to stabilize and resist air pressure from different angles. This is because the larger wings/rotors are able to endure higher resistances and impede any forces other than air resistance and gravity that acts upon the helicopter. It was recorded that helicopter 5 has a standard deviation of 4.3 and an average landing position of 6.3cm away from the centre of the coin (table 11.2). This would suggest that the distances recorded for helicopter 5 is 4.3 standard deviations away from the mean. This indicates that the data is very consistent and considerably the best set of data out of the 5 designs because of the lower average. The design of every helicopter was modified from the original design, by increasing the rotor and base width by 1.8 cm. This therefore makes the surface area of the first