For an object that can weigh up to 500 tons, how can a giant piece of metal fly and stay up in the sky? For a plane to stay in flight it needs four forces to work together: thrust, lift, weight (or gravity), and drag.

Want to learn more about planes?

http://www.wrightbrothers.org/Histor...
https://www.nasa.gov/audience/forstud...
http://science.howstuffworks.com/tran...

That took some thinking! If you have any questions you would like answered leave a comment below!



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