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Thread: Is it possible?

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  1. #1
    Senior Member chefwarthog's Avatar
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    Lightbulb Is it possible?

    Like I said in other thead, I have to bild my garage(23'X35' with cathedral rafter) before to order my kit.

    I have to order my trusts with +1000lb reinforce structure. Just to recover my garage floor and store my finish plane in same time. So.....

    1- Is it possible to hang the Kitfox from the ceiling with an electric hoist?

    2- Where should be the strongest point of the airframe to put the anchors(2 infront 1 rear)?

    3- Where is the center of gravity of the plane when nobody is in side and the wings are fold?

    I hope my english is comprehensible....

    Thanks for your help.
    Eric
    Last edited by chefwarthog; 02-26-2011 at 09:39 PM.

  2. #2
    Senior Member SkyPirate's Avatar
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    Default Re: Is it possible?

    If I were going to suspend the plane from the rafters after it was completed, I would build a "cradle" that I could roll the plane onto so that the plane sat on it's wheels, then hoist the cradle up after I secured the wheels of the plane to the cradle

    Chase

  3. #3
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    Default Re: Is it possible?

    I would think you would have no problem if you attached on both sides of the front wing carry through. Then a third attachment on the tail at the front of the horizontal stabilizer. Take care,
    Jim Chuk
    Avid MK IV (flying)
    Kitfox 4 (building)
    norhern Mn

  4. #4
    Senior Member t j's Avatar
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    Default Re: Is it possible?

    Where is the center of gravity of the plane when nobody is in side and the wings are fold?
    My classic 4 in level attitude has 515 pounds total on the main wheels and 35 pounds on the tail wheel. In 3 point attitude with wings folded, 375 pounds total on the main wheels and 175 pounds on the tail wheel. Arms are +2.5 inches to the mains and 158.5 inches to the tail wheel in the level attitude.

    Not sure where that puts the CG exactly. A rough estimate is about 52 inches. It gives you a rough idea of how the weight moves back with wings folded.

    Looks like the rear spar carry through tube would be supporting the bulk of the weight.

    Fuel in the tanks will increase these weights.

    If I was going to suspend it I would replace the wing attach bolts and pins with eye bolts. http://www.aircraftspruce.com/catalo...s/eyebolts.php

    The though tube at the front base of the vertical fin might work for the rear attachment but I would want someone with more engineering knowledge than myself to check that first.
    Last edited by t j; 02-27-2011 at 09:01 AM.
    Tom Jones
    Classic 4 builder

  5. #5
    Senior Member chefwarthog's Avatar
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    Default Re: Is it possible?

    In 3 point attitude with wings folded, 375 pounds total on the main wheels and 175 pounds on the tail wheel. Arms are +2.5 inches to the mains and 158.5 inches to the tail wheel in the level attitude.


    So if I follow you, total weight is distribute 2/3 in front 1/3 rear.

    Do you think that this affirmation still exact for the SS and will the those attache point will hold up?

  6. #6

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    Default Re: Is it possible?

    Hi Eric,
    I sent you an e-mail to tell you that I live in Sherbrooke, Quebec and wanted to communicate with you in french by phone. Did you receive it?
    Thanks

    Pat

  7. #7
    Senior Member t j's Avatar
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    Default Re: Is it possible?

    Quote Originally Posted by chefwarthog View Post
    In 3 point attitude with wings folded, 375 pounds total on the main wheels and 175 pounds on the tail wheel. Arms are +2.5 inches to the mains and 158.5 inches to the tail wheel in the level attitude.


    So if I follow you, total weight is distribute 2/3 in front 1/3 rear.

    Do you think that this affirmation still exact for the SS and will the those attache point will hold up?
    2/3 front 1/3 rear is probably a good "Ball park" estimate for most Kitfoxes. Thats my opinion anyhow. This is in three point attitude remember. If you suspend it with the tail wheel higher than the main wheels then some weight will shift to the front.

    I can't say anything about the attach points strength. Consider using all 4 wing attach points and a spreadder bar side to side and front to rear to distribute weight to all 4 points.

    Someone with floats on their kitfox may have an idea if it is good to use these points to lift the kitfox as I see some lift their float planes from these points..
    Tom Jones
    Classic 4 builder

  8. #8
    Administrator DesertFox4's Avatar
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    Default Re: Is it possible?

    Last time I was in Murle Williams shop he had 3 Kitfox's hanging from the steel rafters. All on electric hoists.


    DesertFox4
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  9. #9
    Senior Member t j's Avatar
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    Default Re: Is it possible?

    chefwarthog asked:
    I have to order my trusts with +1000lb reinforce structure. Just to recover my garage floor and store my finish plane in same time. So.....
    Desert Fox 4 said:
    Last time I was in Murle Williams shop he had 3 Kitfox's hanging from the steel rafters. All on electric hoists.
    Now you have me interested!

    Wart, be sure to tell the truss engineers you want to suspend an airplane from their truss design.
    Tom Jones
    Classic 4 builder

  10. #10
    Senior Member chefwarthog's Avatar
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    Default Re: Is it possible?

    Quote Originally Posted by DesertFox4 View Post
    Last time I was in Murle Williams shop he had 3 Kitfox's hanging from the steel rafters. All on electric hoists.

    You think is it possible to get pictures?

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