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  #11  
Old 05-09-2016, 04:03 AM
dspender dspender is offline
 
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I believe in the FAQs on Vans site they recommend the tie down point on the wing as the lift point
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  #12  
Old 05-09-2016, 05:31 AM
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turbo turbo is offline
 
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whatever method you use, take the load off the lifter and support the axil with something after removing the tire. chalk the other tires to.
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  #13  
Old 05-09-2016, 06:06 AM
BillL BillL is offline
 
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Location: Central IL
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Quote:
Originally Posted by Low Pass View Post
So, we trust the tie down to be good for holding the plane to the ground in conditions that may lift it off the ground. Why can't we trust the tie down point to hold a comparable load in the reverse direction?
The issue does not seem to be the ability of the threads to carry the load, it is how the load is carried into that thread. Jacking under a tie down eye generates a bending load on the joint. A short spherical end with a matching cup on the jack carries the load with minimal bending. Just be sure there is a "fence" in case it wants to slip. There is a lot of wobbling potential with the plane on jacks this tall. The jacks should be very stable, and able to carry some side loads without deflection or tipping. Look at how the multi-thousand dollar jacks are made. They address the issues. Not saying they are required, just an example of a good design.
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  #14  
Old 05-09-2016, 06:29 AM
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Walt Walt is offline
 
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These jack pads are made for RV from the good folks at Bogert aviation:

http://bogertaviation.com/collection...s/rv-jack-pads

http://cdn.shopify.com/s/files/1/083...g?v=1438201869
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  #15  
Old 05-09-2016, 07:02 AM
LuisR LuisR is offline
 
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Location: St Lucie County, FL
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How about someone produce these for resale! I think this is EXCELLENT!! ****...I'll have them made and resell just to contribute to the RV community! Someone send me a spec sheet for these to send to a local machine shop. I don't see any issues with these.

NICE work!!

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  #16  
Old 05-09-2016, 02:42 PM
alpinelakespilot2000 alpinelakespilot2000 is offline
 
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Quote:
Originally Posted by BillL View Post
Hi Bill-
What's this fitting called? (It looks like a u-bolt with a special bridge.) Just in the regular hardware section of any auto parts store store? I've seen others use 1-2 stainless hose clamps to serve the same purpose but yours seems much more substantial.

Although I currently use a tall jack at the tie down, I'd really like to carry this in my travel pack b/c it can be used anywhere with a regular car jack--plus, no danger of anything slipping off the tie down and poking a hole in my wing.
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  #17  
Old 05-09-2016, 03:00 PM
BillL BillL is offline
 
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Quote:
Originally Posted by alpinelakespilot2000 View Post
Hi Bill-
What's this fitting called? (It looks like a u-bolt with a special bridge.) Just in the regular hardware section of any auto parts store store? I've seen others use 1-2 stainless hose clamps to serve the same purpose but yours seems much more substantial.

Although I currently use a tall jack at the tie down, I'd really like to carry this in my travel pack b/c it can be used anywhere with a regular car jack--plus, no danger of anything slipping off the tie down and poking a hole in my wing.
I just reposted the photo - see post#6 above by dustyone.

http://www.vansairforce.com/communit...19&postcount=6
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  #18  
Old 05-09-2016, 04:32 PM
LuisR LuisR is offline
 
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Looks like an automotive exhaust clamp I think.
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Last edited by LuisR : 05-09-2016 at 04:38 PM.
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  #19  
Old 05-10-2016, 03:30 AM
Dustyone Dustyone is offline
 
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Location: Brisbane,Austalia
Posts: 164
Default Saddle Clamp 1 1/8"

Correct,

1 1/8 " Saddle Clamp normally for auto use.

The goal was to have a stable,easy to use way to lift the wheel while on outback adventures away from any hangers or workshops.

It worked so well and was very stable with the bottle jack,that it is now my preferred way to jack one side to rotate the tyres.
The heavy wing jack will be used when lifting both sides.

Cheers,
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  #20  
Old 05-23-2016, 09:13 AM
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MauleDriver MauleDriver is offline
 
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Location: Lake Ridge Aero Park - Durham NC
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I have 4 years of maintenance experience with this.

Simple and solid on hard surface hangar floor. The conduit and hose clamps may look hokey but it works very well (I just copied someone else's design).

Once a tire comes off, I use blocks under the axle.

I've never had a need to lift both sides so only 1 is needed.

I had a flat tire away from home once. Having the round headed bolt in my tool kit made it easy to use an FBO's jack.

I got stuck in the mud once on my home port. I used this jack to lift each wing to slip plywood under each wheel to roll it out. So it worked surprisingly well on an uneven, muddy soft surface - that was a bonus.
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