Science - Forces of Flight

Hi all, 

A few weeks back we did a science/engineering activity where we  created paper aeroplanes and  then thought about how we could improve their design to fly further. 

To take this a step further I  would like you to visit this website (which is the greatest paper aeroplane website ever created!)

 https://www.foldnfly.com/#/1-1-1-1-1-1-1-1-2

I would like you to choose two designs and create and test these. 
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Then some questions for you to think about: 
Which flies further and why? Does one fly faster than the other, why do you think this is? What is the  force pulling the aircraft towards the ground?

​Email me anything you discover at [email protected]