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Thread: Twin engines


  1. #1

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    Twin engines

    I would like to controll the engine speeds on my twin airplane . Is there a way using servos and controlling from my transmitter?

  2. #2
    DavidAgar's Avatar
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    RE: Twin engines

    You can use 2 servos and program them to different channels on the radio. I do this to adjust the RPM so they are matched, but I have never tryed to cut one down in flight. What are you trying to accomplish? Dave
    If the screw ain\'t loose then things ain\'t normal.

    Dave Agar
    AMA#97144

  3. #3
    Ed_Moorman's Avatar
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    RE: Twin engines

    Set your engines on 2 different channels and set a 3-position mix switch to combine them with throttle as the master and ch6 as slave, for example. This will let you switch from using the throttle or both the throttle and whatever other level you name. I would use a left-side lever if your radio has one.

    Use a second mix to set ch6 as master and throttle as slave. This was you can use the 3-position switch to allow you to fly with either engine shut down.

    Be sure you have a good, strong rudder servo and a stiff pushrod; pull-pull is better.

    Ed Moorman, AMA 553, Former R/C Report Fun Aerobatics Columnist. 76 and up to my old tricks!

  4. #4

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    RE: Twin engines

    Thing to remember about twins is one engine will always be the master. that is the engine you tune to...you want the master to be the weak engine.... easier to tune the strong engine to the weak one....single engine operation on a twin usually does not work very well. Neither would differental thrust. That is why the weak engine should be master trying to aviod single engine operation since we can't feather a prop. a dead engine is alot of drag on one side


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