Whats wrong with my ionocraft (HV ion lifter)?

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SUMMARY

The discussion centers on troubleshooting an ionocraft, specifically one constructed with a triangular frame made of broomsticks and powered by a flyback transformer from a black-and-white television. The user reports using 45 gauge copper wire and aluminum foil for the ion propulsion system, but the device fails to generate thrust despite producing a strong spark. Key issues include the suitability of the flyback transformer’s pulsed DC output and the need for proper insulation of the thin wire. Recommendations include adjusting the air gap and ensuring all components are correctly configured.

PREREQUISITES
  • Understanding of ion propulsion technology
  • Knowledge of high-voltage components, specifically flyback transformers
  • Familiarity with wire gauge specifications and their implications
  • Basic principles of electrical continuity and circuit testing
NEXT STEPS
  • Research the operational principles of ionocrafts and their thrust generation mechanisms
  • Learn about the characteristics of pulsed DC output from flyback transformers
  • Investigate proper insulation techniques for high-voltage wiring
  • Explore methods for measuring thrust in ion propulsion systems
USEFUL FOR

This discussion is beneficial for hobbyists and engineers interested in ion propulsion technology, particularly those experimenting with DIY ionocraft designs and troubleshooting high-voltage electrical systems.

arnab321
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this is my ionocraft. sides of the triangluar frame are of 10 cm each. the frame is made of broomsticks because we don't get balsa wood here. I am using 45 gauge Cu wire (ripped off from a quartz clock's circuit). total weight is 2-3 gms. (i hv weighed it). air gap is about 3.5 cm.

im using the supply from a b/w tv flyback, which can give about 4.5 cm fat spark. the spark was so hot that my Cu wire attached to the flyback was oxidised instantly (turned black). i think that's enough for the lifter?

i connected the Cu wire to HV+ and the Al foil to ground of the flyback. the Cu wire on the frame began to vibrate, and part of the wire outside the frame was shaking like hell. but my ionocraft doest even stir. i have checked for continuity and ensured that all wires are ok.

i have tried adjusting the air gap to an optimum, for no sparking yet close enough. but no luck. can u tell me what's wrong? and how much KV do u think a 4.5cm spark may contain?
 
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Try weighing it while it's running, or floating it on a frictionless surface. Maybe it just doesn't produce enough thrust.

Maybe you should understand more about how they're supposed to operate (I never heard of it till I saw your message, but it seems like a cool concept!). Then you'll have some idea how to diagnose it. The TV transformer probably produces pulsed DC, with a zero for half the cycle. Is that suitable? Is it OK for the thin wire need to be insulated?
 

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