Gas bag construction..

The actual construction of the gas bag is going to be difficult, as there's little to no info about such things on the internet.. The best I could find was this thread on an RC forum, talking about gluing together mylar film for small blimps. Since my project is substantially bigger, it shouldn't be as sensitive to variables like the thickness/weight of the mylar, so I can make a tougher envelope and not have to worry so much about it tearing, however I haven't decided what glue would be best for this, and how to do the ends of the envelope....

The mylar is available from Ebay down to 1 mil, which is thicker then the RC forum was using but I might even go for 2 mil just because having these things leak/tear sounds like a nightmare and a half. The mylar on ebay is reflective, and is apparently intended to conserve light in indoor marijuana growing operations.... As much as I'd like it to be un-coated (which would probably clear), this mylar should suffice. I will probably by a 4'x100' roll so I have extra to experiment with, perhaps I'll make a bigger/smaller zeppelin when I'm done with this one...

Leaks should not be as much of an issue because I will not have very high pressure gas, unlike regular latex balloons, the mylar balloon is exactly the size I want it, and doesn't need to be stretched when inflated, so that's a plus.

In order to really get the zeppelin look, I'm going to make it rigid bodied, which is silly for an airship of this minute size, but I really love the framework look of zeppelins, so I'm going to do it no matter how difficult.

These posts aren't very structured... Excuse my excitement.