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Use with questions asking for sources of information for specific problems relating to drones or model aircraft.
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votes
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answer
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Contra-rotating coaxial shrouded fans: design guidelines
I want to design and make my own Dronut-like drone. The size will be limited by my LCD printer.
My goals are:
quiet. 2) safe. 3) duration.
I'd like to use a pair of HBR turbofan style fans to extrac …