Thanks Dave,
I have Helicopter Theory and will try to find some of the others on your list.
I have "Principles of helicopter engineering" by Jacob Shapiro 1955, pretty good book for me as I am using mostly old technology.
Wish I had that book by Webb Schuetzow, I sent him a check about 30 years ago for the book and never got it. I think he died about that same time.
I better get the Machinery Handbook, don't have that.
I think I am mostly on my own, as the majority of helicopter engineering has been for very large machines.
Bill