Ok, I have been having some trouble/ controversy trying to figure out
how much a 4 rotor, the drive, and, well just about everything from
the firewall forward is going to weigh.  I have seen some pretty nice
3 rotors out there but I'm still wondering what we are looking at for
a competitive 4 rotor with aluminum housings, weight wise???  Any one?
By the way, if any of you are wanting to design and build your own
plane, Martin Hollmann's book "Modern Aircraft Design" is fairly easy
to understand and follow.
Ok, hope all of you are doing well!
Jeremy

200 pounds bare two rotor aluminum block.
Four rotor 400 pounds. Add 200 pounds for misc
and you are probably looking at 600 pounds firewall
forward. The trouble is there are no aluminum parts
to make a Mazda stock three rotor let alone a Mazda based 4 rotor.
People have made four rotors with 2 rotor center housings but
it is tricky and entails custom shafts and other parts.

You might contact these people.

And see if they will sell you a KKM-508-TW 394 KW (514 HP) turbo
engine.
Weight 280 KG or 616 pounds.
www.wankelsupertec.de
info@wankelsupertec.de

3 rotor shown but four rotor possible.
I would forget the direct injection and just get the
bare engine and run it on gasoline. A LOT cheaper.
Better learn to speak East German :)
Maybe Martin can help translate.

---------------------------------------------
If you go with SuperTec you will be on the leading edge
no matter what. My suggestion is find a local mechanical engineering
professor partner at a local college and hire him. That will give you
academic credibility. Then approach Supertec as a joint development
company
promising to share all experience. You will have to write technical
reports from time to time. You can get the real help on here.
Try to find a Bell 47 helicopter final drive unit and use it as
a gear reduction. Doug has one but I am sure he does not want to
sell it.

Paul Lamar


Thanks so much Paul!  This is great info.  I will look into the other
engine as well.  We just like the 4 rotor because the F2G Corsair has
a 4 row engine only it has 7 cylinders per row!  This engine just
seems like the right one to use!
Again thanks for the info and if you have any other ideas for us let
me know!
Jeremy