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This is a badge bit (BB) that is part of the PEP curriculum. Completing this BB is part of getting the sand badge in Rocket.

This BB requires you to start a rocket j-tube and boil a gallon of water on it. You are not required to build your own rocket j-tube, but you will need access to one.

Some threads on rocket j-tubes
  - J-Tube Rocket Stove Question
  - Angle of tube feed
  - Dimensions of a J-Tube
  - Troubleshooting J-Tube Design

How a Rocket j-tube works (seen through glass)

To be certified for this BB you must provide:
  - 4 pictures
       o pic of starting materials before fire
       o pic of fire started
       o pic of additional wood added
       o pic of water boiling
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Boil 1 gallon of water

I hope this is the definition of a j-tube rocket. Its a j tube with a 20ga  barrel over the riser, hot plate is used as lid of barrel. Its my second "test" rocket. Will build for keeps real soon based on what I learned.

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Staff note (paul wheaton):

I certify that this BB is complete!

There's a way to do it better - find it. -Edison. A better tiny ad:
Rocket Oven – is it Right for You? Here’s What You Need to Know
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