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We acquired a pulsejet engine and SA007 decided it would be fun to try it out.
The engine is fastened to a piece of train rails to weigh it down and prevent actual lift-off. The fuel line is crafted out of electrical wire (with the wires being removed from the jacket). The air intake line is made from CAT 5E network cable (also with inner wiring removed from the outer jacket). The prototype fuel tank was made from a piece of bicycle inner-tube, later we just used a cut plastic bottle. The high-voltage current which ignites the spark-plug is provided by a neon sign transformer.
Actual phrases overheard during construction and test-firing:
* "This (electrical) wire is rated for 300 volts, so it'll probably be okay to use as a gasoline fuel line"
* "This piece of train rails will weigh it down sufficiently to prevent lift-off....probably"
* "With us being boardmembers, shouldn't we put a stop to this?"
* "That length of CAT5E network cable is perfect as an air intake hose"
* "Wait, doesn't this count as a weapon?" (weapons are prohibited from entering the hackerspace)
* "We *do* have the paramedics on speed-dial, right?"
* "I am picturing a couple of nerds desperately running after an escaped pulse-jet-driven drinks cart"
* "Anyway, even *if* it escapes, it can't go farther than the compound gates" (300 metres away)
pic by: MeTa & Tania
c-base spacestation 2014
near berlin germany
MeTaVoLuT1oN PsY-ph0toNiCs
creative commons CC-BY-SA
meta (at) c-base.org
Moem was cutting a bit of PCB for one of her projects, a circuitboard book cover for a small notebook.