RE: Hughes H-1 1/4 scale
Kir, welcome aboard to RCU and what an entrance with a build of such a great airplane.
I'm glad you found out from your first post not to try to cut and paste anything other than pure text from a simple text program such as Notepad to the forum. There was a bucket load of oddball code in your first post to edit out.
To you others. I don't know of a set of model plans for the H1 but the Peter Westburg drawings of the two versions of the H-1 are a great way to get started on your own version.