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Design Question? Answered

Thanks for the nice lesson. In terms of the design, does the long piece attached to the bottle need to be so long? Does that have some effect on the pressure that builds to launch the rocket? Thanks again.

I've seen it done with a bike inner tube, but I don't think they were usually that long.

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mikeasaurusBest Answer (author)2017-06-01

The PVC section that holds the rocket is that long so standard copier paper will fit when rolled. The remaining sections of PVC are of an arbitrary length, but are designed this long to provide stability to the apparatus when launching.

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