The best material for envelope

[princo85]

Hi,
My name is Princo and I'm from Wroclaw University of Tewchnology.
I'm designer of this project:
http://airshipworld.blogspot.com/2008/04/airship-one-project-from-poland.html

and now Me and my  team are preparing to build out door airship with full autonomical control. My question is: What is the best material for envelope and where can I get it?

Plese help

[johannes.eissing]

Hi Princo,

What is the proposed size of your outdoor ship? I think you will need a proper shape (google series58 generator), a slenderness ratio of at least 4 to 5, and you will need ballonets. Week PU films might forgive a volume change of the lifting gas due to a change of ambient temperature and pressure, but they can't maintain the shape and can't withstand bending moments in gusts or at higher speed.

Best, Johannes

princo85 wrote:

Hi,
My name is Princo and I'm from Wroclaw University of Tewchnology.
I'm designer of this project:
http://airshipworld.blogspot.com/2008/04/airship-one-project-from-poland.html

and now Me and my  team are preparing to build out door airship with full autonomical control. My question is: What is the best material for envelope and where can I get it?

Plese help