Super Cub with Kubota wind driven genny

Discussion in 'Instruments / Avionics / Electrical System' started by Twodeaddogs, Jun 22, 2017.

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  1. Jun 22, 2017 #1

    Twodeaddogs

    Twodeaddogs

    Twodeaddogs

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    Hi all,
    I'm trying to track down a wind driven generator installation, which I have seen fitted to a Super Cub, in a video. It consists of a Kubota gene or dynamo driven by what appears to be a marine type propeller, which appears to be a multi-bladed type, possibly from a trolling motor,made of either red plastic or red-painted metal and the whole assembly is fitted between the undercarriage legs. If anyone has a clue about this unit, let me know.

    regards
    TDD
     
  2. Jun 22, 2017 #2

    radfordc

    radfordc

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  3. Jun 22, 2017 #3

    cluttonfred

    cluttonfred

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  4. Jun 22, 2017 #4

    radfordc

    radfordc

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    I made a homemade version for my old Team Airbike. I used a Kubota dynamo and a homemade prop hub with a model airplane propeller. The dynamo puts out AC power so you will need a regulator/rectifier. I used a Key West unit: http://www.aircraftspruce.com/catalog/eppages/keywestregulator.php It worked well to keep my small lead acid battery charged.
     
  5. Jun 22, 2017 #5

    Dan Thomas

    Dan Thomas

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    I made one for my Jodel using a small, ball-bearing 12VDC motor from a photocopier. The propeller I made first from wood, then steel, and was only about three inches across. The pitching and airfoil of a wind-driven prop is some different from a driving propeller like a model prop. This thing generated 1.5 amps, enough to keep the small lead-acid battery charged to run the radio. However, it made a lot of RF noise that I couldn't get filtered out; no amount of chokes and capacitors would stop it. I think it was being radiated off that steel prop, which picked it up off the armature shaft. I removed it and just charge the battery occasionally.
     
  6. Jun 22, 2017 #6

    Twodeaddogs

    Twodeaddogs

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    Thanks for all the help but it's not quite the one I'm looking for. The subject aircraft is a Super Cub on big fat tyres, which has a red propellor on the front of the Kubota. For the life of me, I can't remember where I found it. My friends who have used gennipods and other makes found them unsatisfactory.

    regards
    TDD

    I can't upload the video as it is an mp4 and the computer tells me it's an invalid file!
     
    Last edited: Jun 22, 2017
  7. Jun 22, 2017 #7

    FritzW

    FritzW

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    ...just a thought

    Something like the prop/spinner on the Gennipod II would be a simple thing to print out of Nylon and would cost about 50 cents.
     
  8. Jun 23, 2017 #8

    Twodeaddogs

    Twodeaddogs

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    By chance, I found a prop on the internet that appears to be the same as the one in the video; a Vetus bow thruster propellor, about 185mm diameter, which appears to have been installed backwards to the airflow from the aircraft propellor.
     
  9. Jun 23, 2017 #9

    Twodeaddogs

    Twodeaddogs

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    Found it; turned out to be a Vetus bow thruster propeller, driving a Kubota dynamo under an Experimental PA-11, by a chap called Peter Brown on Facebook.
     
  10. Jun 23, 2017 #10

    Mcmark

    Mcmark

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    Would you post a link please?
    Trying to solve power issues for my Cubby.
    Thanks
     
  11. Jun 29, 2019 #11

    103

    103

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    Look at FARMBOY Dialog on link below.

    https://www.supercub.org/forum/showthread.php?48723-Solar-Chargers/page4

    Source for red fan
    https://www.anchorexpress.com/Prope...2q0TXKT7UxwoWOY17hfonFlmO7zZHShhoC-gQQAvD_BwE

    Also here is a nice exploded diagram of the Dynamo.
    https://www.tractorbynet.com/forums.../172004d1279728986-dynamo-bearing-bearing-gif

    REF Good pictures of the Kuboto insides replacing the bearings.

    https://www.mytractorforum.com/54-k...00-alternator-dynamo-bearing-replacement.html
     
    Last edited: Jun 29, 2019
    Dana likes this.

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