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I need some ideas for a 'vehicle lifter'.

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  • The Artful Bodger
    replied
    BJT, thats pretty much what we have in mind although we are considering a bottle jack to push the tire onto a plate. I am really here looking for alternative and maybe better ideas that might be out there. Thanks.

    Flylo, please send us some of those for evaluation! I fear there would not be clearance under some of the aircraft however. Nonetheless it is an excellent principle for consideration and might have more potential than what we have been considering so far. Thanks to you too.

    Bob_s, now that certainly is an interesting idea and no doubt we would not be short of helpers in the winter (such as we have here) when there would be free rations of the appropriate internal combustion liquid!

    Paulsv, you have given me an idea! We have pallet lifters but discounted them as unable to move in all directions but never considered putting castors under the ends {thinks} "Lift aircraft, place castors under end of pallet jack, lower jack until weight is on castors, push aircraft into position...." Thanks very much!

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  • paulsv
    replied
    How about a couple of pallet jacks, with something that will slip under the wheels and over the arms of the pallet jack. There are all different kinds of palet jacks here:

    http://www.pallet-jack.org/index.cfm...FVBgMgod52sArw

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  • bob_s
    replied
    Think outside the box!

    Refrigerate the concrete pad and spray a thin mist of water sufficient to ice the surface. Then you should be able to slide it anywhere you want.

    If you call it a sport, then you should be able to recruit free help. Give some of the "player" brooms/brushes to sweep the path, while you stand there marking the target destination and shouting "Harder, harder".

    What the heck it worked in Scotland.

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  • flylo
    replied
    Check Grays http://www.grayusa.com/wheel_lift.asp

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  • BigJohnT
    replied
    Sounds like what your looking for is something you can position around the tire(s) with a roller across the front and castors under the bottom. As you draw the front and rear frames together the roller allows the tire(s) climb up onto the roller and raise the tire(s) off the floor. Then you can roll the plane around at will on the castors. A simple acme screw on each side could be used to draw the two ends together to lift the plane.

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  • The Artful Bodger
    replied
    Thanks DD40, those skates are good but we are looking for some clever scheme that will not require jacking the aircraft (they all have different jacking arrangements and we cant just push a garage jack under one and lift).

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  • DickDastardly40
    replied
    On an Aircraft Carrier, the 'Chockheads' working the hangar deck used to use a small amount of washing up liquid squirted under the wheel to allow it to be pushed sideways. This was obviously a smooth steel deck painted with a particular sort of paint which had a smooth finish unlike the flight deck which was coated in non-skid; I dunno how this would work on your painted concrete or if it would damage it.

    Failing this you could look for race car skates which would be suitable for your weight.

    http://www.demon-tweeks.co.uk/motors...ic-wheel-skate
    http://www.demon-tweeks.co.uk/motors...heel-dolly-set

    As most of the weight of a Harrier is on the double wheel under the engine you might be better off positioning this traditionally and moving the other exhibits around it.

    edit- just found these:

    http://www.aircraftspruce.com/catalo...aeroroller.php
    Last edited by DickDastardly40; 10-25-2012, 02:42 AM.

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  • RancherBill
    replied
    Look at how they move grand pianos.


    They are ordinary dollies that are connected with a T style frame. You can push it any way you want and the T keeps everybody going the same direction. It cost a lot of money to repair a leg if it does not follow the other two.!!!

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  • The Artful Bodger
    replied
    Yes, air sleds would be exciting. If I thought I could make wooden sleds to leave under the wheels of the heavier aircraft.....!

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  • Opa
    replied
    Check out an auto restoration business or a rigging company. I think that I've seen larger versions of the dollies that are used for moving grand pianos. Only raises the piano or auto several cm. off the deck.

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  • ironmonger
    replied
    air pucks

    I don't know how they would work, but we used 'air pucks' to move heavy equipment over flat floors.

    see:
    http://www.airsled.com/who.htm

    It's kind of like a hovercraft for equipment. If you think they wouldn't lift your plane, one 12" diameter sled at 50 psi would exert 5600 pounds of lift.

    The only problem is moving heavy equipment combined with a rapid air loss can lead to a large pile of tile gouged up in front of the sled (the chiller we moved weighed about 10 tons... no friction but inertia don't care about that). We didn't move fast, but it sure was easy.

    paul

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  • The Artful Bodger
    replied
    To answer the questions...



    The Harrier weighs about 6 tons, there is probably 4 tons on the two (close together) main wheels.

    The hangar floors are all smooth concrete but painted so we do not like to scuff them up.

    We would like to move the aircraft in any direction including sideways and turn them around etc so really we need castors on every wheel. Pallet lifters and trolley jacks (that we have) cannot be moved sideways.

    Plane moving days we usually have a dozen or so people (plus aircraft tug and a forklift).



    Safety is always a concern but in this case the aircraft tires will never be more an inch or so above the floor, not entirely without hazard but at least nothing is going to tumble over or crush anyone.

    Browne92, we have considered something like that but it would require lifting each wheel up on to it and we could not leave them on or the castors would get flat sides on their tires (besides we have 30 or so aircraft). Nonetheless it is a good idea for some of the lighter aircraft, Beech Skipper, Porterfield etc, thanks.

    Rosco, we looked at those devices, they would do the trick if we could get one strong enough.

    Regarding the aircraft shops and carriers, we have a tug (which I think came from a carrier) which is essential when moving between hangars or outside on display days but not really the answer for making the best use of floor space in the exhibition areas.

    Thanks for the contributions..

    P.S. One of our exhibits in the "small hangar"

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  • armedandsafe
    replied
    Contact these guys and ask them how they do it. I worked on their computers when I was in that business in San Diego and was always amazed ath their ability to cram 4 planes in a three plane space. The guys in the shop were always willing to talk about thisthat'n'nother.

    http://www.sandiegoairandspace.org/

    Pops

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  • uncle pete
    replied
    After visiting a few aircraft museums and seeing how they usually shoehorn the aircraft in, probably all 3 points would need to be steerable. I can see where moving a plane sideways would be needed. But Rosco has an excellent point. Aircraft carriers would need to do the same in their confined spaces.

    Pete

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  • browne92
    replied
    If you could build something like this cheaply enough but strong enough, make enough to leave the planes on them at all times.

    http://www.vansairforce.com/communit...d.php?p=704576

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