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Thread: Pitbull gyro look a like or concept?!

  1. #1
    Registered User erkki67's Avatar
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    Pitbull gyro look a like or concept?!

    I haven't realy been interessted about gyros, especially knowing their dangerous habits in some situations.

    But one gyro concept which I would like is a tractor taildragger gyro, not as sophisticated as this:

    http://www.tervis.fidisk.fi/jt9drawi...aildragger.pdf

    but more like the Pitbull Gyro but without the fairings.

    I would imagine, as far as possible a 2" by 2" square tube as fuselage and the same for the mast, 2 tubes joined together, I hope you get my point of view.

    As an engine A B/S or similar in the nose.

    Any thoughts about such an a configuration?

    Bst rgds

    Erkki


  2. #2
    Registered User deskpilot's Avatar
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    Re: Pitbull gyro look a like or concept?!

    That is a damn nice configuration. Starts me thinking the gyro way again.
    Fly safe.

    Cheers, Doug

  3. #3
    Registered User Joe Fisher's Avatar
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    Re: Pitbull gyro look a like or concept?!

    Here is another choice Little Wing Autogyros, Inc..

  4. #4
    Registered User Hot Wings's Avatar
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    Re: Pitbull gyro look a like or concept?!

    There is this one also:

    rotorcraft

    The little industrial engines aren't going to be enough Hp. My personal want in a gyro is a Weir W-2 replica, with a VW or a 2 cyl Franklin up front.

    Autogyro-W2 | Aircraft |
    Conventional wisdom and practices yield conventional results. If that is good enough for you:
    Problem solved.

  5. #5
    Registered User Joe T's Avatar
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    Re: Pitbull gyro look a like or concept?!

    Pitbull gyro look a like or concept?!-dsc01473.jpgPitbull gyro look a like or concept?!-dsc01475.jpgPitbull gyro look a like or concept?!-dsc01474.jpg
    Hi
    I have been working on a tractor you might like.



    Friendly regards,
    Joe T
    Doggzilla likes this.

  6. #6
    Registered User Tom Nalevanko's Avatar
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    Re: Pitbull gyro look a like or concept?!

    Hey Joe, I like your design. And, for the thread, modern gyros don't have any more dangerous habits than fixed wing aircraft. If you take the wrong, stupid action you will kill yourself in either. One of the guys in my EAA Chapter dumped 30 years of old magazines in our hangar clubhouse (the hangar bosses really love this; LOL). Among these were all the old Rotorcraft and similar publications so I grabbed these and have been going through them instead of watching TV. Really interesting to view the evolution but a bit disheartening that all the promises never seemed to have materialized.

  7. #7
    Registered User Joe T's Avatar
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    Re: Pitbull gyro look a like or concept?!

    Tom
    is there any "rotorcraft" magazines from 1978-80?
    if so, i sure would like to see them.

    Friendly regards,
    Joe T

  8. #8
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    Re: Pitbull gyro look a like or concept?!

    Most of the "google-FU" will result in pitbull threads ending in debates and Nay saying on the Tail dragger configuration. There is exactly one clip of a flying pitbull on youtube and it is the Manufacturers unit ( I believe, it is at least the same vid that is on his web site) many were sold few were finished and fewer yet flew, and hardly any with any regularity. the tractor concept is sound and in fact the way most of the early commercial Gyro's were built. the problem comes with inexperience Pilots getting in to a Tail dragger and not being able to handle the two different conditions that exist on take off ... it has to do with the center of drag and the center of resistance etc etc... short answer is when the tail wheel lifts it wants to swap ends. Seems like the general consensus of the pilots I have talked to that have actually flown them is that if you fly it off the ground in a three point attitude they are relatively docile. I am semi half heatedly working on a design that will look similar to the pitbull, but starting from the ground up. Good luck !

  9. #9
    Registered User erkki67's Avatar
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    Re: Pitbull gyro look a like or concept?!

    Hello greywuuf

    Have you done any kind of progress wih your gyro concept ?

    Bst Rgds Erkki

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    Re: Pitbull gyro look a like or concept?!

    Hey,
    Are you still building this, would you build another - I'd like more info. The frame is perfect - looks like my fixie bike.

    DJ

  11. #11
    Registered User rtfm's Avatar
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    A profile fuse concept for gyros

    Hi guys,
    I'm about to launch into a 2nd project while I laboriously work on the Razorback plug - this new project is a profile version of the plane. I want a quick and easy build (also cheap) test-bed for the Razorback. I start on it next week when the foam arrives.

    But this got me thinking - since I have a closet love of gyros, I was wondering how well the profile fuse would adapt to gyros. Almost without modification, here is the profile Razorback fuse wedded to an all-composite A-frame mast with a rear brace. The A-frame would have its apex at the rear brace junction, with a single member mast continuing up to the rotor head. The A-frame would continue down and serve as the main gear also, making the mast and gear a single bolt-on unit. 35 degrees of blade flap angle. 50hp Valley Engineering Big Twin engine up front.

    This design would effectively consist of three main parts: single-pice airframe, mast/undercarriage and rudder. Seat is bonded to the profile fuse. Cowling optional, as would be a cockpit/windshield. I don't think it gets much simpler than this folks...

    This is a preliminary sketch only, but with the details worked out, I believe the concept would work very well.

    Regards,
    Duncan

    Pitbull gyro look a like or concept?!-gyro-profile-4-2-july12.jpg
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  12. #12
    Registered User erkki67's Avatar
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    Re: Pitbull gyro look a like or concept?!

    Does there exist any 3 side view or even plans of the Pitbull Gyro?

    Erkki

  13. #13
    Registered User billyvray's Avatar
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    Re: Pitbull gyro look a like or concept?!

    Here are a few simple designs for inspiration. I'm pretty sure the last 3 of these is a pitbull with no fairing.

    Pitbull gyro look a like or concept?!-gyro-b.jpgPitbull gyro look a like or concept?!-gyro_042_001.jpgPitbull gyro look a like or concept?!-gyro2_541.jpgPitbull gyro look a like or concept?!-gyro4_002.jpg


    ~Bill

  14. #14
    Registered User erkki67's Avatar
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    Re: Pitbull gyro look a like or concept?!

    Thank you Bill

    Indeed it looks like the Pitbull, now it would be great to find a 3view of the Pitbull or even plans of it with a material list. ;-)

    Bst rgds Erkki

  15. #15
    Registered User cluttonfred's Avatar
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    Re: Pitbull gyro look a like or concept?!

    erkki67, check out http://www.rotaryforum.com/forum/ if you haven't already. There is a wealth of info on gyros, including tractor gyros, in that group.
    *******
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