Designing a Hovercraft
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Uploader Comments (dajutster)
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I am not trying to be pretentious, or cocky, or "seem more knowledgeable than I am" and I honestly don't know why you think so. All I am saying is that for my application I needed to machine my flange precisely. This is both based on my calculations and the guidelines of the propeller manufacturer. I would imagine that you are using a pre-made flange that is already CNC machined to precise specs. I made mine myself and I wanted to minimize any chances of error.
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CNC machining? Which parts?
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Dude, what are you talking about? I run a 20 HP engine on a hovercraft with 1/8 clearance and there is no issue with "off-axis" force. I appreciate what you've done, but you don't do yourself any favors by trying to seem more knowledgeable than you are.
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Wow, sorry for the delayed response - I didn't see your comment. I couldn't tell you exactly how much it cost because it was a birthday present. (Yes I asked for a propeller for my birthday.) But I do know it was purchased on Ebay. Sorry I can't give you more info.
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may i ask wer did you get the airplane prop and how much did it cost
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regardless speed will have a more adverse effect on the prop than the torque to turn it.
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It probably going to have one fan for the lift and two for steering, each powered by seperate motors. The lift fan will have a separate battery pack to the two for steering as it'll be on more. Erm, as for the RC I'm not sure at the moment, maybe take apart an old rc car controller of something, or maybe buy a tradio transmitter with several recievers. Do you happen to know where I could get something like that quite cheap?
yellowblutac 3 years ago
If I were you, I'd look for a local hobby shop. I found one near my house that could sell you virtually every piece of your project. Pay particular attention to model aircraft parts/kits - they contain powerful little engines (many run on gas) and propellers.
dajutster 3 years ago
Very impressive! :) I'm looking at making one myself (a much smaller RC one mind) did you have to do many calculations before the build?
yellowblutac 3 years ago
Most of my "calculating" was trail and error. i.e. trying different skirt materials to see which one works best. Sketch the whole design out on paper with measurements beforehand. My only real number-crunching had to do with the propeller/engine but since you're working on a smaller scale, you probably don't have to be as meticulous. Keep it light - that's my best advice. How are you planning to power it and do the RC?
dajutster 3 years ago