Installing window AC in travel trailer or tent trailer

I put a window A/C in my POP (Mounted it on the front, so the unit was more or less "Normal" in the position it was mounted only I had to cut an opening, and later re-close it when I converted it to a utility trailer)

And in my Scamp, this one was an actual WINDOW install, Just added support bracing to help hold it.

Both worked, not as well as Id have liked but as well as I'd have liked, on the PUP, was simply not possible,, Sure made a diffeence in humidity and comfort though.