Giant Vortex Air Cannon

I built the largest Vortex Air Cannon in the southeastern US. 

I built this air cannon so that it's very portable. The entire device breaks down and everything fits inside my car except for the largest ring (at the back) which rides on the rooftop carrier.

The skeleton of the structure is built with 3/4 inch PVC pipe. The blue "skin" surrounding the skeleton is a blue poly tarp. The dark blue membrane at the back is lightweight waterproof nylon. The front is a piece of 1/2 inch plywood. The internal power is supplied by four bungee cords.

Build it yourself plans are here: 

https://makezine.com/projects/build-giant-collapsible-vortex-air-cannon/

Videos below are of the "Candle Cannon" which provided me with inspiration. This is an amazing Vortex Air Cannon and if I had a big barn and an extra trailer, I would have made one just like it.