Paul,

    Have you been following the Norton NRV500/700 motorcycle news.
   They ran
    173mph at Bonneville in 2010 with this engine.




http://www.asphaltandrubber.com/racing/norton-racing-nrv588-179-mph-bonneville-salt-flats-bub-week-part-2/

    I can't seem to find any specs on the engine anywhere.

    Mark S.



    http://en.wikipedia.org/wiki/Wankel_engine

    This link may help. At the very bottom there is a little scoop
    about the
    Norton.
    One chamber has 588 cc as the name implies. A larger 700 cc
    chamber size
    is being planned.

    Rolf


    Rolf,

    Did you mean to state that the 588 was a 2-rotor?  According to the
    link, the 588 is a 2-rotor.

    "Norton has used a Wankel engine in several models including the
   F1, F1
    Sports, RC588, RCW588, NRS588, most notably Steve Hislop riding to
    various victories on Norton's F1 in the TT in 1992. *Norton now
   makes a
    588cc twin-rotor model called the NRV588* and is in the process of
    making a 700cc version called the NRV700."

    Mark


   Marc

   The Norton Rotary has 588 cc displacement per chamber. That compares to
   654 cc in the Mazda's, RX3 to RX8, they all have the same displacement
   per chamber.

   Norton started out with a single rotor and later build two rotor
   versions of the same basic design with 588 cc chamber size. The new
   NRV588 and NRV700 with 700 cc displacement per chamber are twin
   versions, as per the company statements.

   In other words the 588 is not far from the 654 Mazda is using. Perhaps
   for smaller hp needs a Norton 588 single could be used. Likely that
   would be simpler than reducing the Mazda to a single rotor version. Even
   the twin might be suitable for aircraft use. Paul probably has more
   insight into that.

   Rolf



Paul.
The BSA/NORTON company have never made for sale a single rotary engine.
The Twin rotor engine was based on the Fichtel and Sachs KM914 engine
the total swept volume is 588cc for the twin sold as a 600cc motorcycle,
The Norton Aeroengine for light aircraft,there was a single with a
displacement of 294cc per rotor/and a twin at 294cc per rotor
The Book NORTON ROTARIES by Kris Perkins . will give you all the
information the you need
robert