Dear Mr. Lamar,

 The Rotary Engine newsletter has been a valuable source of real world
 information.

 My background in rotary engines is I'm trying to design one - an extension
 of the Wankel principles.

 At the moment, am quite a bit away from freezing the design. However, in
 the
 future, when I am in a better position - design wise and financially, would
 you be willing to consider critiquing the design?

 My priorities are 1. to freeze the design; 2. to try and patent it; and
 then
 the great unknown.

 For communication and discussion of design (if you're willing, of course),
 do I use the "rotaryeng@earthlink.net" or would you have a different email
 id that I could write to?

 Also, your views on this material in the rotary context would be
 appreciated:

 http://www.schunk-group.com/sixcms/media.php/1722/CarbonPistons-forInternalCombustionEngines.pdf

 Best regards,
 Chandra


 Use this outline as a guide Chandra.
 http://www.rotaryeng.net/What-is-a-rotary-engine4.html

 You can send me private email by placing the word "private"
 in the subject box.

 This carbon material looks good for rotors. Somebody ought
 to try it but a 30% weight savings is not much.
 I wonder what the cost is? The cast iron rotors
 weigh 9 pounds so 2.7 pounds off the rotor
 amount to 5.4 pounds off the engine.
 The cost per pound could be real high.

 Paul Lamar

 Hi Paul and Chandra

 Paul I understood the 30% weight saving was over
 aluminum not Cast Iron making the weight saving much more significant.

 Steve Izett
 Perth WA
 Building Glasair Super IIRG Renesis 4 Port RD1-C EC2 EM3


 Ops. Your right. Thanks for catching that Steve.
 That would be a significant weight savings.


 Paul Lamar

Thanks to Steve Izett, for a moment even I was wondering where my math went
wrong.

In terms of the Wankel rotor, Cast Iron being 9 lbs. that translates to a
2.35 lbs. rotor.

Chandra

Chandra & Paul,

All well and good to want lighter rotors...   Mazda worked for many
years to achieve todays wonderfull rotaries.
Paul wrote a few days ago that 'those that are bound to push
boundaries, will be impaled upon it' (or similar to this idea) :)
What is the goal here?  RB already has alum end plates, existing
rotors can be milled (or use currant RX8 rotors) and there are
good ideas to lighten the e-shaft.  I see the problem as a source
for mostly complete engine systems.  We as a group, THANKS PAUL,
have the most up to date information to build rotaries,
even "light weight" rotaries.  BUT, how much effort and $$
are realistic to take off a few pounds??  I will be very happy
to have a single rotor @130hp &140lbs, wet with PSRU, which
I believe is totally realistic today.

Dan F