Hi guys,
    Sorry to inject a newbie question into this fascinating discussion,
    but I am
    building a single place gyro and wish to power it with a single-rotor
    Renesis. The airframe is designed for a Rotax 503, and in this
    configuration will accommodate a 66" prop. Does anyone know where I can
    find drawings of the Renesis engine, so that I can work out the
    geometry of
    the engine mount and redrive offset in order to swing a 68" prop?
    Also, any
    info re: CG of the Renesis would be helpful.

    Regards,
    Duncan of Devonport
    Auckland
    New Zealand


    I assume you have a source for single rotor Renesis engines. If so
    there are a bunch of people on here that would like to know
    about it. Here are some drawings of the regular 13B. From this you
    subtract one rotor housing and the center housing. This is about
    as close as I can come. The CG should be very close to the center
    of the engine. You will have to add the starter, alternator and other
    accessories CG's to the basic engine CG.

    Paul Lamar


Paul,

Do I understand this to mean that you can make a one-rotor engine out of
a 13B, by simply removing one rotor and the center section?

If so, how much would such an engine weigh?

Regards,

Gordon.

Well not quite that easy but close. You need to machine down the
shaft and change the balance weights.

Trouble is it is quite heavy for the power.

Richard Sohn is working on a two piece end housings to cut the weight.

Richard Sohn <unicorn@gdsys.net

Paul Lamar

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