# NBA

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I had an idea for a quadcopter, one that could stay in the air for long periods of time, with minimal power consumption. Think of it like this quadcopter + dirigible == Neutrally Buoyant Aircraft. It would have about the same mass as a off the shelf quadcopter but would have a much larger displacement. The props would no longer have to expend energy just to allow it to hover. I was thinking mylar + He gas. I haven't run any numbers yet on how big it actually would be.

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So your making a hacking Zeppelin?

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Whilst i would have to point out it would end up being large, that could work out in you favor... cause the balloon itself could house larger anntenna or other equipment.

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Well, think of the radio controlled flying shark. Use that as a base and see where you can go from there.

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Ahh Ill have to look into those links. I can see now that this is not a new idea, but I thought it was a neat one. Anyone have any idea about how much a quadcopter can weigh?

"Hak Zepplin"

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I think you're asking the wrong question. The maximum amount of weight of a drone can probably be calculated from the amount of flight time you want, the motors you're going to use, the size of the propellors you choose, the control board you want to use and a whole load of other options. A quick bit of math later that formula has been reduced to something with just 2 variables, 1: "How much are you willing to spend" and 2: "How long must it fly"

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I was wondering about the weight so I could calculate about how big the ballon would need to be e.g.

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