Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
Origami Rocket
You can make a real, working rocket from a simple sheet of paper!

The heart of this is a traditional "water bomb" origami model. There are already quite a few Instructables on making the water-bomb, so I simply present the steps as photos.

Turning it into a rocket, though...

The fuel I chose for this project was propane from my blowtorch. It's a happy coincidence that a drinking straw fits down the central delivery tube of my blowtorch. I cut a straw to a spike, and it became a perfect delivery system for injecting fuel into the water bomb through the inflation hole.

I blew in gas for a few seconds, laid the rocket on its side, then applied a match to the hole.

Woosh!

I normally fuel these with methane (natural gas) from my lab gas-taps, so a few rockets went up in flames while I got the fuel-air mix right...



An impressive feature of these rockets in lessons is their size - I can keep a handful in my pocket, inflating them as I need during the lesson, as we discuss the various factors that can influence the distance they scoot across the desk.
 
 

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