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  #1  
Old 03-18-2013, 06:55 PM
DeltaRomeo DeltaRomeo is online now
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Default An idea for a hangar lift....

.....smarter-than-me types (pretty much everybody), please mull over this.

V/r,
dr

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  #2  
Old 03-18-2013, 07:06 PM
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Mike S Mike S is offline
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Default

Tail sling rope to a pulley mounted on the floor at the base of the lift, and then the rope goes up to the lift.

As the lift goes up, it will pull the rope automatically.

Whatever you do, make sure the main wheels are locked into the lift.
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Last edited by Mike S : 03-18-2013 at 07:12 PM.
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  #3  
Old 03-18-2013, 07:06 PM
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Doug,
I like it.

4x8 plate metal 1/4" thick between beams.

4" I beam 15' long welded to plate metal.(Bob Avery)

Should work fine.

Drill 4 holes in plate and secure with bolts.

Look at the post of RV3 in hangar.
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  #4  
Old 03-18-2013, 07:10 PM
David Paule David Paule is offline
 
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A friend of mine suspends his homebuilt, the size of a J-3 but heavier, from the ceiling of his hangar. He welded up two large C-shaped frames. One is positioned under the outboard end of each front strut. A cable runs from each to a pulley on the ceiling, then a pulley at the back of the hangar, and down to a winch. Besides those two cables, he has another for the tailwheel. All three cables are ganged to the same winch drum.

The L frames are welded up from what's probably 6" x 3/8" steel tube, well oversize.

When the homebuilt is raised, which only takes a few moments, it's at least ten feet above the floor.

The advantage of this system is that it leaves the floor available.

The whole hoist was made from scratch, with no analysis. He merely made it stout.

Dave

Last edited by David Paule : 12-26-2016 at 10:35 AM. Reason: Clarification
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  #5  
Old 03-18-2013, 07:50 PM
Kyle Boatright Kyle Boatright is offline
 
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Why not just bolt a "T" shaped beam to the pads on the lift. The top portion of the "T" would capture the mains and the base of the "T" would capture the tailwheel. The balance should be reasonable and the brace you sketched (or braces anchored the floor) would take care of any balance issues.

A question I have after scanning the website is: "What mechanism(s) does the manufacturer use to lock the lift in the "up" position and what fail safe systems do they have to prevent differential lifting or other potentially scary problems?
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Last edited by Kyle Boatright : 03-18-2013 at 07:56 PM.
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  #6  
Old 03-18-2013, 08:09 PM
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GLPalinkas GLPalinkas is offline
 
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Doug, Don't know if you have ruled this approach out but I have seen old photos of Taylorcraft's and J-3's stacked close together with this method. I can't find any in my library but I know they are there. Here is an example.





[ed. Googling 'cub nose stacking' came up with some interesting ideas! If I chocked it properly I could just use a hoise to raise the tail. Thanks Gary. That might be the ticket.
Another pic: http://cdn.j3-cub.com/forum/attachme...bs_stacked.jpg
dr]
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Last edited by DeltaRomeo : 03-18-2013 at 08:30 PM.
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  #7  
Old 03-18-2013, 08:33 PM
DaAV8R DaAV8R is offline
 
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Default Could work

Bolt a sheave to the bottom of the post. The cable runs from the tail, to a sheave in the roof structure, down to the sheave at the bottom of the post and anchors to the arm on the lift.

Maybe you could locate the lift in such that the tail could be taken thru the lift uprights so the wing trailing edge was near the uprights. Place the mains on the lift pads and cantilever a member across the lift arms to support the tail.

No heavier than the plane is you could probably cut up one auto lift and make two airplane lifts with the post anchored to the floor and wall.
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  #8  
Old 03-18-2013, 08:46 PM
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Russ McCutcheon Russ McCutcheon is offline
 
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Quote:
Originally Posted by DaAV8R View Post
No heavier than the plane is you could probably cut up one auto lift and make two airplane lifts with the post anchored to the floor and wall.
That's what I was thinking,,, with a little fab work you could have two lifts!
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  #9  
Old 03-18-2013, 08:55 PM
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GLPalinkas GLPalinkas is offline
 
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Quote:
Originally Posted by GLPalinkas View Post
[ed. Googling 'cub nose stacking' came up with some interesting ideas! If I chocked it properly I could just use a hoise to raise the tail. Thanks Gary. That might be the ticket.
Yep, that photo is what I was thinking. Old guys rule
Make the floor brace like in the photo. Has to be the least expensive route. Let us know what direction you go.
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  #10  
Old 03-18-2013, 08:55 PM
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Jaypratt Jaypratt is offline
 
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Default Lift

Doug,

Larry, across the taxi way from me has one of those car lifts, if you want to see it?

[ed. Thank you Jay! I *think* Phil down from Randy at our airport has same. Will check Tue. br,dr]
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Last edited by DeltaRomeo : 03-18-2013 at 09:04 PM.
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