I'm working on a project for an air platform to inspect roof top.
R/C helicopters like those that we fly requires extensive training and hence not really suitable. Then there is this problem of smashing windows with the main rotor blades.
I'm wondering if there are any r/c blimps/airship that can fly outdoors?
An for those who are familiar with airship design, is it possible to achieve flight stability without having a very big airship? I notice that most airships are very big in size. In my project, I'm looking at airship of around 2m long.