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Noise cannon for RC planes

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Re: Noise cannon for RC planes

Unread postAuthor: Futterama » Fri Jul 06, 2018 2:53 pm

hectmarr, thanks.

The propane pressure is 8bar and this would blow more than a pump. I would need the pump to blow into the nozzle in reverse direction with the propane feed hose detached so the dirt gets out of the system. But during all my extensive testing, this is the first time I have had a nozzle clog.

I have made a cleaning tool with some 0.3mm piano wire so I can clean another time if needed.
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Re: Noise cannon for RC planes

Unread postAuthor: hectmarr » Fri Jul 06, 2018 4:18 pm

Yes, indeed, a mechanical system can also work properly. It happens that when the airplane model is on the ground, the turbulence generated by the propeller,Lift up dust, can dirty and cover such a tiny hole. :(
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