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Thread: Setting Whirlwind GA-RW3B pitch on 912ULS

  1. #11
    Senior Member efwd's Avatar
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    Default Re: Setting Whirlwind GA-RW3B pitch on 912ULS

    what are you using for pitch setting?
    My 912is set between cruise and climb gets me about 115TAS in level flight. Im getting 5250rpm static WOT. I found that if I set the pitch any finer I would Redline the engine too easily once level.
    Eddie Forward
    Flying
    SS7, 912iS, Garmin G3X

  2. #12
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    Default Re: Setting Whirlwind GA-RW3B pitch on 912ULS

    Quote Originally Posted by efwd View Post
    what are you using for pitch setting?
    My 912is set between cruise and climb gets me about 115TAS in level flight. Im getting 5250rpm static WOT. I found that if I set the pitch any finer I would Redline the engine too easily once level.
    Mine is set to 17 degrees right now but no flight time on it. I got about 5300 static at WOT. That's with the 75" prop. Interested to know what you are running Eddie.

    Geek
    Gary (Geek) Phenning
    Leavenworth (Not the Prison), WA
    Kitfox STi in Building Stage

  3. #13
    Senior Member efwd's Avatar
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    Default Re: Setting Whirlwind GA-RW3B pitch on 912ULS

    I referenced the rpm because I don't recall what the original setting I put in. By that I mean, when the airframe was level etc etc. Since that time, someone here had mentioned that it wasn't necessary to level the airframe each time pitch is changed. So, I just started at the baseline (that I don't recall) and started changing pitch (while in three point) until I found 5250rpm. You seem to be very close to my setting. I wouldn't change it. I think I originally set it for 5500 static WOT but if I pushed the nose over once I reached pattern altitude, I would easily reach 5800 rpm if I wasn't quick on the throttle. I also didn't enjoy the more turbulent days because each thermal would require I be hypervigilant as well. 5250rpm is suiting me fine.
    Eddie Forward
    Flying
    SS7, 912iS, Garmin G3X

  4. #14
    Senior Member jiott's Avatar
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    Default Re: Setting Whirlwind GA-RW3B pitch on 912ULS

    That's what I use, 5250 rpm static, with my Whirlwind 70" GA-RW3B on a 912uls. A good compromise.
    Jim Ott
    Portland, OR
    Kitfox SS7 flying
    Rotax 912ULS

  5. #15
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    Default Re: Setting Whirlwind GA-RW3B pitch on 912ULS

    Thanks Eddie and Jim. I'll chime in later once I fly this thing. Still playing FAA but in the meantime - I got a hangar so that's progress!!!

    G
    Gary (Geek) Phenning
    Leavenworth (Not the Prison), WA
    Kitfox STi in Building Stage

  6. #16
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    Default Re: Setting Whirlwind GA-RW3B pitch on 912ULS

    For the definition of redundant - see redundant. Sorry about the double pump.

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    Gary (Geek) Phenning
    Leavenworth (Not the Prison), WA
    Kitfox STi in Building Stage

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