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Thread: Rotax 915is and VPX installation discussion

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  1. #1
    Senior Member
    Join Date
    Nov 2019
    Location
    Leavenworth WA
    Posts
    627

    Default Re: Rotax 915is and VPX installation discussion

    Quote Originally Posted by VictorV View Post
    .......The primary flaw in #1 is that you need one hand to operate the switch and the other to operate the momentary switch which leaves
    0 hands available to control the throttle. Victor
    How about locating the momentary switch just to the left of the throttle. Wrap your hand around the throttle and use your thumb to pull in the momentary switch. When it starts, let go of the momentary but you still have the throttle controlled. I think that's actually how Kitfox does their panels.

    This however is a great post that I am certain is going to help a lot of people out. Thank you

    Gary
    Gary (Geek) Phenning
    Leavenworth (Not the Prison), WA
    Kitfox STi N68SG

  2. #2
    Senior Member
    Join Date
    Feb 2020
    Location
    Steilacoom, WA
    Posts
    734

    Default Re: Rotax 915is and VPX installation discussion

    I have very limited time around Rotax 4 cylinder engines but my recollection is that they come to life abruptly (unlike the cantankerous clattering stuff I'm used to) and pass through 1500 rpm before you let go of the starter button/switch.
    Kitfox 5 (under construction)
    Commercial SE/ME, CFII

  3. #3

    Join Date
    Dec 2019
    Location
    Idaho
    Posts
    118

    Default Re: Rotax 915is and VPX installation discussion

    Thanks for the feedback Eric. It sure would be easier if Rotax just took care of the start power and just had a single aux power input.

    Victor
    Building SS7
    915iS
    Garmin G3x

  4. #4

    Join Date
    Dec 2019
    Location
    Idaho
    Posts
    118

    Default Re: Rotax 915is and VPX installation discussion

    Quote Originally Posted by Geek View Post
    How about locating the momentary switch just to the left of the throttle. Wrap your hand around the throttle and use your thumb to pull in the momentary switch. When it starts, let go of the momentary but you still have the throttle controlled. I think that's actually how Kitfox does their panels.

    This however is a great post that I am certain is going to help a lot of people out. Thank you

    Gary
    The start-power switch is indeed close to the throttle on the Kitfox 912is panels but I was not able to get my hand on both simultaneously.
    Maybe my hand is just too small
    Building SS7
    915iS
    Garmin G3x

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