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Thread: Sun n Fun

  1. #1
    CubCruiser's Avatar
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    Sun n Fun

    Visit our exhibit at Sun n Fun and see the latest Mother of All Cubs to come out of the building. Click image for larger version. 

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    Daryl Hickman, ATP, CFI, XYZ, PDQ
    N452SP American Legend Cub
    http://www.CubFlying.com
    http://www.KidsFlyCubs.org

  2. #2
    skywagon8a's Avatar
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    Quote Originally Posted by CubCruiser View Post
    Visit our exhibit at Sun n Fun and see the latest Mother of All Cubs to come out of the building. Click image for larger version. 

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    Is it just an optical illusion or is the rudder oversized? If oversized, have you found a need for more rudder or was this just a means to increase the vertical tail area? Was there a consideration to increase the area of the fin or not or why not?

    Just curious since when a Cub is on floats it could use a little more vertical tail area.
    N1PA

  3. #3
    CubCruiser's Avatar
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    Yes, it is oversized. It is common for that mod on both Legend floatplanes and the 195hp version of wheel planes (as well as some 180hp models) like this one with the Titan IO370.
    Personally, I find the ventral fin less aesthetically pleasing and the extra large rudder is a good solution. Here’s extra large vs. standard on two Legends:

    Click image for larger version. 

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ID:	55201 Click image for larger version. 

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    Daryl Hickman, ATP, CFI, XYZ, PDQ
    N452SP American Legend Cub
    http://www.CubFlying.com
    http://www.KidsFlyCubs.org

  4. #4
    CubCruiser's Avatar
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    Another XL:

    Click image for larger version. 

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    Daryl Hickman, ATP, CFI, XYZ, PDQ
    N452SP American Legend Cub
    http://www.CubFlying.com
    http://www.KidsFlyCubs.org
    Likes silflexer liked this post

  5. #5
    skywagon8a's Avatar
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    Thanks, I agree the ventral fin is less appealing. I guess my question wasn't worded correctly.
    I understand the desire for increased total vertical tail area, especially when on floats for stability purposes.
    My question is more towards, did you find a lack of rudder effectiveness under certain conditions? Thus the need to increase the area of the rudder?
    Or, was it just a stability issue which could have been corrected by increasing the fin area?

    Your picture of the "small" tail shows VGs on the fin, thus indicating a desire for more rudder authority.

    My 180 hp floatplane Cub uses a ventral fin for stability purposes. It was a quick easy fix, nothing more. I have never found a lack of rudder authority. Thus my question.
    N1PA

  6. #6
    Scouter's Avatar
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    Daryl
    That blue/yellow/silver plane looks like a beauty. Any chance for bigger pix?
    thx
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  7. #7
    CubCruiser's Avatar
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    We just arrived at Sun n Fun. When I get back to Texas, I’ll try to get some.

    Daryl
    Daryl Hickman, ATP, CFI, XYZ, PDQ
    N452SP American Legend Cub
    http://www.CubFlying.com
    http://www.KidsFlyCubs.org

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