• Does anyone know anything that would be useful in airship discussion?
    45 replies, posted
Carbon Fiber rolls. Seriously, I am a part of an aeronautics club, and we use the stuff for EVERYTHING. It's excellent! [editline]21st September 2011[/editline] [QUOTE=trotskygrad;32404809]hydrogen would require a lot more money and weight if you wanted to do it safely.[/QUOTE] Couldn't you store it in propane tanks?
[QUOTE=ewitwins;32404812]Couldn't you store it in propane tanks?[/QUOTE] I think he was talking about in-flight, not for storing it.
Inflate the balloon with a vacuum, it's lighter than hydrogen!
[QUOTE=teh pirate;32404726]Build a rigid skeleton for it and use hydrogen filled gas bags if you want buoyancy and integrity[/QUOTE] If he does that, he'll be building a goddamn zeppelin.
zeppelin > blimp
[media]http://www.youtube.com/watch?v=Kq-N3_plNq8[/media] /thread
Make it remote control and I will love you.
[QUOTE=adam1172;32406249]Make it remote control and I will love you.[/QUOTE] I flew RC blimps in conference centers a couple times... I was good at it so they unofficially paid me, lol.
I designed a Zeppelin with two friends of mine last year. We got some rough drawings done, figured out an optimal size for it, how much helium we'd need, how much extra lift that'd give us (after lifting the Zeppelin itself). We decided to design it using Duralumin simply because that's what Zeppelins in the olden days used and it proved effective enough. It's also fairly common and cheap due to being mass produced for aircraft. We looked at DuPont's Tedlar for the actual cover of the helium envelope. It's used in the Zeppelin NT so e know it can stand up to the test. I did some research on it and it has some pretty good specs. Low gas permeability, strong and light, can take a beating, has been extensively tested under a range of conditions. Seems like a solid choice for the helium envelope. I still fully intend to build the damn thing if I ever get the money together. Problem is we calculated the cost of Helium to be something like 1.6 million USD (or maybe it was 6.1 million... I forget... I'm fairly sure it was 1.6, though). But that said, we calculated that by finding some site that sells helium then simply finding out how many canisters we'd need to buy. In reality we'd save money by buying in bulk.
Almost as good as my old thread. [url]http://www.facepunch.com/threads/1092231[/url]
[QUOTE=sltungle;32408881]I designed a Zeppelin with two friends of mine last year. We got some rough drawings done, figured out an optimal size for it, how much helium we'd need, how much extra lift that'd give us (after lifting the Zeppelin itself). We decided to design it using Duralumin simply because that's what Zeppelins in the olden days used and it proved effective enough. It's also fairly common and cheap due to being mass produced for aircraft. We looked at DuPont's Tedlar for the actual cover of the helium envelope. It's used in the Zeppelin NT so e know it can stand up to the test. I did some research on it and it has some pretty good specs. Low gas permeability, strong and light, can take a beating, has been extensively tested under a range of conditions. Seems like a solid choice for the helium envelope. I still fully intend to build the damn thing if I ever get the money together. Problem is we calculated the cost of Helium to be something like 1.6 million USD (or maybe it was 6.1 million... I forget... I'm fairly sure it was 1.6, though). But that said, we calculated that by finding some site that sells helium then simply finding out how many canisters we'd need to buy. In reality we'd save money by buying in bulk.[/QUOTE] yeah my calculations for the host of helium run about the same (1.25) I'm pretty sure I was using bulk pricing including costs for canisters and such.
I don't think licensing will be an issue, what would they classify it as?
[QUOTE=No Party Hats;32420347]I don't think licensing will be an issue, what would they classify it as?[/QUOTE] blimp no but seriously, airspace control is serious business. You would have to get anti-collision lights and transponders and stuff
[QUOTE=trotskygrad;32420684]blimp no but seriously, airspace control is serious business. You would have to get anti-collision lights and transponders and stuff[/QUOTE] Not under ultra-light rules! :eng101:
[QUOTE=ChristopherB;32421458]Not under ultra-light rules! :eng101:[/QUOTE] yeah but a ship won't be an ultralight
I don't see this project getting off the ground.
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