This blog covers the day to day progress of water rocket development by the Air Command Water Rockets team. It is also a facility for people to provide feedback and ask questions.
We have finished processing the thrust data from a couple of weeks ago that compares Convergent-Divergent (CD) nozzles to straight trough nozzles. We did 12 tests in all comparing 7mm and 9mm CD nozzles to 7mm and 9mm straight through nozzles.
The update is here:
http://www.aircommandrockets.com/day32.htmThe tests were done in exactly the same fashion as the last set of static tests when comparing foam and water thrust.
The results were interesting, although not unexpected. The update also includes the data in a spreadsheet format if others want to use it for further analysis.
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The update is here:
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