I have added to the download section on the ACRE web site C. Fayette Taylor's classic
work "Aircraft Propulsion". A history of the aircraft piston engine Vol 4.

Also here is a list of references on VTOL aircraft.

Paul Lamar ...No rotor no motor.

The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Copyright 1998-2006 All world wide rights reserved.