Ray's Helicopter manual - Big Problems!
Maverick: Had you asked me I could have lent you an earlier version that I borrowed from Phil Hill. Larry also has it and like me was not very impressed with it at all. Phil has a couple of VHS tapes covering most of what you need to know about Helis and set up and I'm sure he'll lend them to you although they are long, detailed and can be a bit boring at times but are much better than Ray's book.