Grandad Builds Rollercoaster in Backyard For His Grandchildren

Publish Date
Friday, 9 September 2016, 11:52AM
This Grandad is a retired aerospace engineer who isn’t letting any of his skills go to waste by building his grandchildren numerous roller-coasters in their back garden!
HOW COOL IS THAT. 

Posting onto Imgur, the Grandad shared an extremely detailed and technical post describing how he built his grandkids the beyond awesome roller-coaster.
 
Here are a couple of the photos he shared plus a video of the ride in action: 

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Imgur
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Imgur

Here's the outcome!

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Retrieved via Imgur.

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