Hi Paul,
           I'd like to thank you for providing a great website and resource for those interested in rotary powered aircraft. Although I have to admit the science and math sometimes is a little over my head. Its a pleasure to listen to someone who knows there stuff.

I have over the last 25 years been in the business of rebuilding wankel engines, probably over 200 or so. In that time I have seen many engines driven to failure and am happy to share my modest experience of this. All of these have been of the twin rotor configuration. No triple rotor or renesis engines as yet. I have owned and built a number of rotary engined vehicles for road and race, and am aware of the the extreme durability of the twin rotor engine. I am building a mid engine 323 race car at present using an old 12a cosmo block. Last time I used that engine was in 1988, lol. Once finances return to normal this will be replaced with a renesis engine. I cant wait to get my porting tool into those side exhausts. I have over the years developed my own port profiles to optimize torque and be kinder to the seals than standard ports. The last engine I built for a customer was a JC cosmo 13b with a ball bearing TO4 turbo, he ignored my advice and pumped 614hp at the rear wheels, dynoed. Thats about 700ish at the flywheel, not bad for pump gasoline. In its first race it tore the C clamps off the rear axle and parted the driveshaft like it had been turned on a lathe. He was white as a ghost and must have smoked a whole packet of cigarettes non stop after being towed back into the pits. A died in the hole V8 man before that he said he had never driven anything as fast as that before.

Since my youth I have loved aircraft and often dreamed of a rotary powered plane. Sadly it is still a dream, you can only do so much with the available resourses, and I'm not bill gates hehe. I also have a provisional patent for a VTOL/STOL aircraft design here in New Zealand. My design would probably not be feasable without the wankel engine, it was designed with it in mind. Anyway thats enough of my bleating, thanks again for furthering my education with your website. Looking forward to your newsletter.

Cheerio ;o)
Sam