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  1. #1

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    Any rotary engines in an RC model airplane?

    I'm just curious, does anyone know if a model rotary engine has ever been used in an RC airplane? I thought it would be cool, but have never heard of anyone ever doing it.

    If you know of such, please post with any info. Pictures would be awesome.

    Thanks,

    Oly

  2. #2
    RCU Forum Manager/Admin RCKen's Avatar
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    RE: Any rotary engines in an RC model airplane?

    OS makes one. It's a .30 sized rotary engine called the Max 49-PI Type III Wankel

    http://www3.towerhobbies.com/cgi-bin...?&I=LXPVE3&P=7

    While it's a neat idea, $499 for a 30 sized engine is a bit steep just to have something cool!! IMHO

    Ken
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  3. #3
    Iflyglow's Avatar
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    RE: Any rotary engines in an RC model airplane?


  4. #4

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    RE: Any rotary engines in an RC model airplane?

    I have 2 of the OS in a Top Flite DC3, GREAT MUSIC IN THE AIR
    THEY ARE .30 DISPLACEMENT, POWER OF A .40 AND DRINK FUEL LIKE A .60
    BEAUTIFUL ENGINES
    Skypupnut MAAC 5057-L Skype jean.blouin
    CFI Club Aeromodeliste de L`Estrie club Saito # 132

  5. #5

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    RE: Any rotary engines in an RC model airplane?

    Thanks for the response, guys. I've got to apologize, as my question was not worded very well. I am aware of the OS Wankel rotary. What I meant to ask about was a Gnome style rotary, like the Sopwith Camel and other WWI fighter aircraft used.

    I've never heard of or seen a production Gnome style rotary (model sized) from a manufacturer, and I was wondering if any skilled machinists had ever produced one and used it in a model aircraft.

    Sorry for the confusion,

    Oly

  6. #6
    carrellh's Avatar
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    RE: Any rotary engines in an RC model airplane?

    When I first started reading RCU I remember seeing a link to a web site that had pictures and a video of a Gnome style engine. It was a one-off custom creation at the time. I cannot remember the details but it took multiple years to build it and make it work.

    OS, Saito, and others make radial engines in the more modern design.
    - Carrell

  7. #7
    Iflyglow's Avatar
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    RE: Any rotary engines in an RC model airplane?

    Replica engines still produces a fully functioning 1/4 scale example.

    http://www.replicaengines.com/about.html
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  8. #8
    Iflyglow's Avatar
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    RE: Any rotary engines in an RC model airplane?


    ORIGINAL: carrellh

    When I first started reading RCU I remember seeing a link to a web site that had pictures and a video of a Gnome style engine. It was a one-off custom creation at the time. I cannot remember the details but it took multiple years to build it and make it work.

    OS, Saito, and others make radial engines in the more modern design.

    The one you are refering too, was advertised by Replica Engines, and is still available.

    http://www.replicaengines.com/about.html

  9. #9

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    RE: Any rotary engines in an RC model airplane?

    Thanks for the info! Boy, It sure would be fun to have a Replica Engine's Gnome rotary to play with.

    I may contact them and see if they know of anyone who's put one in a model and flown it.

    Oly

  10. #10
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    RE: Any rotary engines in an RC model airplane?

    Can you imagine the insane torque and takeoff issues with one of these fixed crank radials !!

  11. #11

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    RE: Any rotary engines in an RC model airplane?

    At least one model was built with a scale Gnome. No clue if it flew or not

    http://www.youtube.com/watch?v=1eXIYiKVGXI
    Kirk Montague Adams
    Free State Aeromodelers, Laurel, MD : http://freestateaeromodelers.org

  12. #12
    Kmot's Avatar
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    RE: Any rotary engines in an RC model airplane?

    I'm positive I have seen a video of a model flying with one. In the meantime:
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    ~Tom~

  13. #13

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    RE: Any rotary engines in an RC model airplane?

    The video and the Morane are the same guy and I think he did an Avro also. I have also heard of a Pup done too. The 2 problems with the engines are the precession and weight. Precession acts 90 degrees to rotation so right rudder will make the plane tuck and up elevator will make the plane go right and so on. The models done seem to be the more stable ones from WW1 to keep this at a min. The weight of these engines are 10+lbs for 1/4 scale so they are not light weights. Because of the weights they are more ground running engines. I want a Camel with one, but there are some big problems to overcome. On the RCSB board, a guy bought the 1/4 Gnome to put in his Eindecker but has backed out on it for right now but has run the engine. There are a bunch of videos on Youtube of these engines running.


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