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# Paper plane project

## by iteclearners on Nov 27, 2013

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• Explain your results, why are they nearly the same? RANGE <br />
• See diagrams for documentary evidence <br />
• Second plane = low aspect = should be faster – explain why not. <br />
• As instructions (based on World record attempt advice) <br />

## Paper plane projectPresentation Transcript

• Paper Plane Project Scott Leonard
• In my project I… • • • • Created several paper aeroplanes Measured them Threw them Measured different aspects of the throws; distance flown, time in air …etc… • Repeated to find the averages
• Measuring Distance For this experiment I threw the aeroplanes • Measured the distance in metres and centimetres. • Repeated this five times to get more information from the throws. • I repeated this for all the aeroplanes I made.
• Measuring Distance Plane 1 Plane 1 Average Plane 2 Plane 2 Average
• Averages – Plane 1 • The Mean – The mean is what you get when you add up all the values and then divide by the number of values you have got. – 7.69 metres • The Median – The median is the middle value – 7.52 metres There wasn’t much difference between the mean and median average results. This was caused by the low range of data gathered.
• Averages – Plane 2 • The Mean – The mean distance for plane 2 was 2.29 metres. • The Median – The median distance for plane 2 was 2.35 meters. There wasn’t much difference between the mean and median average results. This was also caused by the low range of data gathered.
• Aspect Ratio • The aspect ratio is the ratio of the width of a shape to its height when the width is larger than the height. • Aspect ratio is wing span divided by wing chord. • Planes with a higher aspect ratio will glide better and fly further than planes with a low aspect ratio. • Planes with a high aspect ratio include the Bombardier Dash and the Glaser-Dirks glider • Planes with a low aspect ratio include Concorde. The Bombardier Dash has a high aspect ratio
• Aspect Ratio • Plane 1 - had a wing span of 2.35cm and a wing height 5.70cm. I divided the wing span by the wing height to get an aspect ratio of 0.41. • Plane 2 - had a wing span of 1.82cm and a wing height 5.56cm. I divided the wing span by the wing height to get an aspect ratio of 0.33. • The plane with the higher aspect ratio flew further as expected.
• Aspect Ratio Plane 1 Aspect ratio: 0.41 Plane 2 Aspect ratio: 0.33
• Speed • I carried out the experiment by throwing both of the planes five times and measuring how far they went and how long they took to reach the floor. • I measured the distance they flew in metres and the time they took in seconds. • To find the speed I used distance divided by time. • The first plane’s average speed was 6.98 m/s and the second plane’s average speed was 2.40 m/s. • The second plane was expected to be faster as it had the lower aspect ratio but it didn’t. This was most likely cause by the folds being uneven.
• Checked work • I checked by using – Hand calculations of the total and average flight time – Calculator • Errors I fixed were – To the design, the plane wasn’t even. – Measurements taken were slightly off, I checked them, found that they were incorrect and measured again. – Corrected average calculations
• Rounding • I measured to the nearest – Centimetre, 0.01 centimetres and 0.01 seconds. • I worked these out to the nearest – Centimetre when measuring height and distance. – 0.01 centimetres when measuring wing span and wing height. – 0.01 seconds when timing. – 0.01 when measuring the averages. – 0.01 meters per second when measuring the speed.
• The site I used • http://www.paperairplanes.co.uk/ • Includes a description, images and sometimes a video on how to make the paper aeroplanes. • The most popular planes on the site were the paper helicopter, dragon paper airplane and the trapezium plane.
• Tips for best performance • Fold carefully • Make sure it’s well balanced • Make adjustments, e.g. add blue tack, fold the wings upwards • Give your plane a high aspect ratio • Make the plane heavier at the nose
• Sources • http://www.paperairplanes.co.uk/ • http://www.paperairplanes.co.uk/peteplan.php#instructions • http://www.paperairplanes.co.uk/shadow.php#instructions • http://www.paperairplanes.co.uk/swallow.php