While you can find scanned copies circulating on RC forums like RCGroups or HomebuiltTurbines.com , this exists in a legal gray area. Most hobbyists justify it as "abandonware"—a book whose commercial rights are in limbo.
For hobbyists who want to move beyond buying ready-made turbines and into the realm of , one name appears again and again on forums and workshop benches: Thomas Kamps .
Because the publisher (Traplet) was absorbed by Model Activity Press (MAP) a few years ago, the book is currently out of print. There is no official, legal PDF for sale on Amazon Kindle or Google Books.