OK Bob, if you really want to read something historical (and deals with ballz-and-all flying) check out either of these books:
The Chopper Boys by Rex Forrester, Penguin Books NZ Ltd., 1988 or
The Helicopter Hunters by Rex Forrester, Whitcoulls Publishers, 1997
It's a little different from what you will ever do.... but I wish I'd done it.
