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  • Pitot tube installation

    I am considering using a boom style pitot tube on my Patrol. I have considered using the AN5812 style pitot tube and mount but I like the look of a boom style. There are three options that I can find for a boom.

    1. Build my own using the AN5816-1 "sharkfin" style. I like the look (old aircraft) of this pitot static system, but I would need a third party AOA system.
    2. Using the Dynon boom. This supports AOA but is not drilled to drain water like the Dynon AN5812 style. I would need to add some water capture capability to the pitot / AOA lines.
    3. Use the Steen boom. This does not support AOA as well, so back to a third party AOA.

    Has anyone tried using an AN5816-1 style pitot static boom? If so, any problems with accuracy?

    While on the topic of booms, does anyone have any photos of the retention device used to attach the boom to the leading edge of the spar. Eric has a few images on his CD, I was hoping to see how others might have solved this design. A few mention it on websites but don't show any photos of where it is attached to the spar. I'm planning on the fourth "bay" in from the tip or just outside the aileron support frame.

    Thanks
    Scott Ahrens
    Bearhawk Patrol Plans Built
    #254

  • #2
    I strongly advocate for the Dynon style of AOA which is integrated with the headset audio.
    I firmly believe this would save lives every year if installed more widely, no contest with a basic stall warning or visual-only AOA.

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    • #3
      I have the Dynon AOA pitot tube on my RV . I was just looking for other options that keep the look of an older tail dragger while keeping the AOA functionality. Advanced Flight sells a stand alone AOA system that has audio, but that means two additional tubes running into the wing and its not cheap.
      Scott Ahrens
      Bearhawk Patrol Plans Built
      #254

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      • #4
        Hi Scott, Not sure if this is still relevant for you, I am using the 5816-1 pitot tube in a boom, and so does Russ Erb. I am not flying yet, so can't comment on the accuracy, but surely Russ can.

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        • #5
          I hoping to see someone's installation. In the meantime I have done been looking at older aircraft that have a boom style pitot tube. I have Russ' CD and looked at his installation. In the end I purchased a Dynon boom style pitot tube and have decided on a mount that is a cross between a Cessna 195 and Bell 206. Both use a mast that supports the pitot tube and I am just finishing the design and waiting on the appropriate parts. In short there will a base mount on the spar (similar to the Steen Aero) and a second support mount about 1/2 way between the spar and the leading edge.
          Scott Ahrens
          Bearhawk Patrol Plans Built
          #254

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