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Thread: One bladed propeller

  1. #1

    One bladed propeller

    Got to fly Gene Breiner's J-2 Cub with Everal one bladed prop on Saturday

    http://www.youtube.com/watch?v=fqiBb...ature=youtu.be



    Last edited by Hal Bryan; 10-07-2013 at 08:51 AM. Reason: Embedded video.

  2. #2
    Chad Jensen's Avatar
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    Very cool! Made me a bit nervous watching the start tho...
    Chad Jensen
    EAA #755575

  3. #3
    jjhoneck's Avatar
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    Is there a point to a one-bladed prop? Any advantage?

  4. #4

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    Quote Originally Posted by jjhoneck View Post
    Is there a point to a one-bladed prop? Any advantage?
    It's supposed to be the most efficient way to make a prop. There are lots of discussions on it but there seems to be no general consensus.
    Hy-Tek Hurricane 103



  5. #5
    KDoersom's Avatar
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    Quote Originally Posted by Chad Jensen View Post
    Very cool! Made me a bit nervous watching the start tho...
    Genes been around a long time. I too think he was being a little careless. I think it surprised him. Flown in and out of there a good bit. Nice little 2200 foot grass strip. The people are friendly. If every airport could be like it we wouldn't be having the declining pilot population we have now.

  6. #6
    I think Gene was just hamming it up a bit when it started, feigning surprise, that was all-



    -

  7. #7
    Quote Originally Posted by jjhoneck View Post
    Is there a point to a one-bladed prop? Any advantage?
    Half the chance of a prop strike? :-)

    Ron "Somebody had to say it" Wanttaja

  8. #8
    There are also some single-bladed props that use a teetering hinge at the hub and and a counterweight to create some constant-speed effect without the complication of a true constant-speed prop. In other words, the prop will automatically seek a coarser pitch in climb and a finer pitch in cruise.
    Here's a link to a 1937 article on the Everel prop: http://www.ultraligero.net/Cursos/va...e_una_pala.pdf

    Quote Originally Posted by Downs View Post
    It's supposed to be the most efficient way to make a prop. There are lots of discussions on it but there seems to be no general consensus.
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  9. #9
    KDoersom's Avatar
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    Quote Originally Posted by cluttonfred View Post
    There are also some single-bladed props that use a teetering hinge at the hub and and a counterweight to create some constant-speed effect without the complication of a true constant-speed prop. In other words, the prop will automatically seek a coarser pitch in climb and a finer pitch in cruise.
    Here's a link to a 1937 article on the Everel prop: http://www.ultraligero.net/Cursos/va...e_una_pala.pdf
    Yeah that is the type of prop on Gene's cub. Pretty nest engineering setup.

  10. #10
    FlyingRon's Avatar
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    He seemed to be pretty surprised it actually started.

    Sennsenich had one of these one bladed props hanging on the wall in their Lancaster shop with a story next to it.

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