Hi  Paul  - I am a licensed pilot. I fly strickly for fun and am currently
thinking about building a home built Helicopter (maybe a kit) . I am very
interested in the Wankel Mazda rotary engine for this project and can't
believe that I haven't been introduced to the concept before now . I have heard
about rotary for years but, had always assumed it had pistons of some sort
(simular to other reciprocating engines). Please add me to your Rotary engine
newsletter "Subscribe"  - I am  looking forward to my first letter . Thank
you .                    db  / Wichita Falls, Tx