ujoint
Supporting Sponsor
Looks like some great rigs in those shots. Also a great time.
I would love more info on the collapsible trailer, ie how it moves up and down, how it seals in each position, how it is raised and lowered, etc. I am thinking about building something similar.
I posted the video a few pages back of the Sherpa. Long story short is that it has an air cylinder in each corner that is supposed to lift 150lbs, they never worked properly so we added the struts to the outside to assist. I use my OBA compressor or a nitrogen tank to raise the top. Deflate the system to bring it down. I wouldn't say that it "seals" in any position. I do have some rubber seals that I can install to seal it off but I rarely use them. I've sent many many nights up there!