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Lew Gallagher

Joined: 04 Jan 2008
Posts: 402
Location: Greenville , SC

Posted: Mon Mar 15, 2010 5:24 pm Post subject: Wing jacks

Hey Guys,



Here's another one.  I'm in the process of building wing jacks like Tim's and I'm wondering how often you need both wheels off the ground ... would one jack work for almost all wheel repairs, put a scale under one wheel at a time, etc.?



Also, with a flat, does the minimum height of these jacks fit under the wing jack point?



Thanks, - Lew

_________________
non-pilot
crazy about building
NOW OFICIALLY BUILDER #40549
Fly off completed !

gengrumpy(at)aol.com
Guest

Posted: Mon Mar 15, 2010 6:02 pm Post subject: Wing jacks

With some recent history on flats and I have Tim's jacks as well......



There will most likely be times when you need to have both main wheels  

off the ground at the same time.  You can do this with 2 jacks, or  

with 1 jack, have some good, tall wood dunnage you can lower one axle  

onto and then move to the other wing and jack it up.



No problem with height of the jack and a flat.....except the nose wheel.



I use my 2 jacks with a 2x4 on top to raise the nose gear off the  

ground (put the 2x4 just behind the bulkhead).  Works great except  

when the nose wheel goes flat.....



I've since put in an anchor in my hangar floor (like Tim did) so that  

I can pull down the tail and raise the nose.  Works great as long as  

the tail is sitting reasonably close to over the anchor.



If I had it to do over again, I would modify Tim's jacks so that they  

sit on a flat piece of iron.  That extra inch kept me from getting the  

2x4 under the fuselage when the nose tire went flat.....



grumpy



On Mar 15, 2010, at 8:24 PM, Lew Gallagher wrote:



 	  Quote: 	
		   



 Hey Guys,



 Here's another one.  I'm in the process of building wing jacks like  

 Tim's and I'm wondering how often you need both wheels off the  

 ground ... would one jack work for almost all wheel repairs, put a  

 scale under one wheel at a time, etc.?



 Also, with a flat, does the minimum height of these jacks fit under  

 the wing jack point?



 Thanks, - Lew



 --------

 non-pilot

 crazy about building

 NOW OFICIALLY BUILDER #40549

 Avionics in, engine started!





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=290397#290397

Jim Berry

Joined: 10 Jan 2006
Posts: 237
Location: Denver

Posted: Mon Mar 15, 2010 7:09 pm Post subject: Re: Wing jacks

Another way to raise the nose wheel is to remove the upper cowl, place a loop of nylon webbing through the upper motor mount tubes, and lift with your engine hoist. It is my understanding that you do not want to use the engine lift point.



Jim Berry

40482

mauledriver(at)nc.rr.com
Guest

Posted: Mon Mar 15, 2010 11:55 pm Post subject: Wing jacks

I don't have wings on but I use 2 nylon web straps under motor mount tubing to lift the front up.  Can send a pic or 2 if it will help.  Anchoring tail sounds like it will solve problem of having the engine stand rolling around.



-- Sent from my Palm Pre



On Mar 15, 2010 11:09 PM, Jim Berry <jimberry(at)qwest.net> wrote: 



--> RV10-List message posted by: "Jim Berry" <jimberry(at)qwest.net> 

 

Another way to raise the nose wheel is to remove the upper cowl, place a loop of nylon webbing through the upper motor mount tubes, and lift with your engine hoist. It is my understanding that you do not want to use the engine lift point. 

 

Jim Berry 

40482 

 

 

 

 

Read this topic online here: 

 

http://forums.matronics.com/viewtopic.php?p=290413#290413 

 

 

 

 

 

 

 ============ ============ ============ ============ 

 

 

 

   [quote][b]

Jim Berry

Joined: 10 Jan 2006
Posts: 237
Location: Denver

Posted: Tue Mar 16, 2010 11:00 am Post subject: Re: Wing jacks

I have read, maybe in LightPlane Mainteance, that lifting the plane by the engine strap can crack the crankcase. Fortunately not one of those things that I learned by experience.



Jim Berry

40482

pitts_pilot(at)bellsouth.
Guest

Posted: Tue Mar 16, 2010 11:23 am Post subject: Wing jacks

Jim Berry wrote:

 	  Quote: 	
		   



 Another way to raise the nose wheel is to remove the upper cowl, place a loop of nylon webbing through the upper motor mount tubes, and lift with your engine hoist. It is my understanding that you do not want to use the engine lift point.

   

I wonder why not.  the engine mounts/isolators drag the whole airplane 
	


through the air.  I've been using the engine strap for a long, long time 

... without any bad effects.  Maybe I've just 'dodged the bullet'?

Linn

 	  Quote: 	
		   Jim Berry

 40482





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=290413#290413

pitts_pilot(at)bellsouth.
Guest

Posted: Tue Mar 16, 2010 2:23 pm Post subject: Wing jacks

Jim Berry wrote:

 	  Quote: 	
		   



 I have read, maybe in LightPlane Mainteance, that lifting the plane by the engine strap can crack the crankcase.

I suppose that might be possible ..... but don't know how probable.
	


 	  Quote: 	
		    Fortunately not one of those things that I learned by experience.

   

I'm with ya on that!      I'm hoping that someone with experience 
	


will chime in .  Maybe someone with W&B info can tell us what the weight 

on the nosewheel is.

Linn

do not archive

 	  Quote: 	
		   Jim Berry

 40482





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=290471#290471

dlm46007(at)cox.net
Guest

Posted: Tue Mar 16, 2010 5:14 pm Post subject: Wing jacks

It always amazes me when people are willing to jack a $150000 aircraft with

a makeshift arrangement. Dropping an aircraft will be expensive in both

dollars and time. Aircraft jacks normally require a hydraulic mechanism for

lifting and a locking mechanism to hold the aircraft if a hydraulic cylinder

fails. I have attached several pictures of the jacks we built to jack high

wing aircraft and low wing aircraft like the RV10. You should be able to see

the hydraulic jacks that are available of the shelf and the additional steel

tubing, large nut and threaded steel rod. On the high wing jacks we use

steel bolts inserted into the tubing to lock in place after the lift. On the

low wing jacks the jacks them selves have a locking mechanism and we simply

welded the tube onto the jack and welded the nut and inserted the threaded

rod. One picture is the moveable tail stand/weight. BTW do not use the

threaded tie down bolt areas as the tapped block does not reach the skin (on

my QB wings) and the Vans supplied jack points will compress the skin of the

wing and eventually crack and break it. On top of the jacks we use wooden

block with baffling material siliconed on to protect the surface. We also

place the jack under the main spar.

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Lew Gallagher

Joined: 04 Jan 2008
Posts: 402
Location: Greenville , SC

Posted: Tue Mar 16, 2010 7:59 pm Post subject: Re: Wing jacks

Hey David, et al,



That's a sweet jack!  I'm on it.  Looks like:

 

https://www.toolsmithonline.com/products.php?product=Powerbuilt%C2%AE-3-Ton-All%252dIn%252dOne-Bottle-Jack%7B47%7DJack-Stand



has the jack/stand.  I assume you haven't had any problems with the safety ratchet?  A quick google search turned up several complaints of Powerbuilt's regular jack stands failing -- evidently cheaply cast China ratchet.



About the wing tiedown not being flush with the skin:  I've made a stud that screws into the tiedown with a shoulder on it so that the weight is on the threads, not the skin -- is that a bad idea?  better to spread the weight on the skin?



I'd still like some examples of when both wheels need to be jacked off the ground.



Just a thought about using the engine hoist point to raise the nose wheel:  with the engine mounted, the tail acts as a counterweight and the force on the hoist point is less than when lifting the engine by itself ... so what could the problem be?



Later, - Lew

_________________
non-pilot
crazy about building
NOW OFICIALLY BUILDER #40549
Fly off completed !

Albert Gardner

Joined: 10 Jan 2006
Posts: 455
Location: Yuma, AZ

Posted: Tue Mar 16, 2010 9:04 pm Post subject: Wing jacks

I have a 3 blade Aero Composit prop and in order to remove the lower cowl I

have to pull the tail down so the front gear leg can drop down and provide

clearance. I have a 4-wheel HF furniture dolly wilh 180 lbs of concrete mix

on it and a block and tackle that does the job. My wing jacks (I'm glad I

have two) are HF rams in a plywood stand. I drilled a hole for a short piece

of threaded rod that replaces the wing tie-down so the plane can't slip off

of the jack. There is no safety lock on the jack so I block up the axel as

soon as I remove a wheel. 



Albert Gardner

N991RV

Yuma, AZ

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_________________
RV-9A N872RV
RV-10 N991RV

Kelly McMullen

Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ

Posted: Tue Mar 16, 2010 9:04 pm Post subject: Wing jacks

Why mickey mouse with expensive aircraft indeed!  You normally will

only need one jack. Here is a high quality jack that I use on my

Mooney that should work on RV-10 by just screwing jack points in place

of tie-down rings:

http://www.aircraft-gse.com/lw-3.html

$180. They have gone up a whopping $30 since I bought mine 10 years ago.



On Tue, Mar 16, 2010 at 5:27 PM, DLM <dlm46007(at)cox.net> wrote:

 	  Quote: 	
		  

 It always amazes me when people are willing to jack a $150000 aircraft with

 a makeshift arrangement. Dropping an aircraft will be expensive in both

 dollars and time. Aircraft jacks normally require a hydraulic mechanism for

 lifting and a locking mechanism to hold the aircraft if a hydraulic cylinder

 fails. I have attached several pictures of the jacks we built to jack high

 wing aircraft and low wing aircraft like the RV10. You should be able to see

 the hydraulic jacks that are available of the shelf and the additional steel

 tubing, large nut and threaded steel rod. On the high wing jacks we use

 steel bolts inserted into the tubing to lock in place after the lift. On the

 low wing jacks the jacks them selves have a locking mechanism and we simply

 welded the tube onto the jack and welded the nut and inserted the threaded

 rod. One picture is the moveable tail stand/weight. BTW do not use the

 threaded tie down bolt areas as the tapped block does not reach the skin (on

 my QB wings) and the Vans supplied jack points will compress the skin of the

 wing and eventually crack and break it. On top of the jacks we use wooden

 block with baffling material siliconed on to protect the surface. We also

 place the jack under the main spar.

_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor
KCHD

Albert Gardner

Joined: 10 Jan 2006
Posts: 455
Location: Yuma, AZ

Posted: Wed Mar 17, 2010 12:36 am Post subject: Wing jacks

I have a 3 blade Aero Composit prop and in order to remove the lower cowl I

have to pull the tail down so the front gear leg can drop down and provide

clearance. I have a 4-wheel HF furniture dolly wilh 180 lbs of concrete mix

on it and a block and tackle that does the job. My wing jacks (I'm glad I

have two) are HF rams in a plywood stand.



Albert Gardner

N9914RV

Yuma, AZ

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_________________
RV-9A N872RV
RV-10 N991RV

rene(at)felker.com
Guest

Posted: Wed Mar 17, 2010 12:50 am Post subject: Wing jacks

348 lbs for me when I built it.  I am in the middle of adding a battery on

the firewall....it should go up aft that.



Rene

801-721-6080



--

jesse(at)saintaviation.co
Guest

Posted: Wed Mar 17, 2010 6:39 am Post subject: Wing jacks

I don't remember who posted this, but I did the exact same thing as this but with a welded steel structure.  I screw the jack receiver into the tie-down ring base and jack the plane up from there.  It is very secure and I am very comfortable with it.  I would not use any other system that didn't have the positive connection as I have with the tie-down ring receiver, so there's no way it can fall off the jack.



do not archive



Jesse Saint

Saint Aviation, Inc.

jesse(at)saintaviation.com

Cell: 352-427-0285

Fax: 815-377-3694



On Mar 17, 2010, at 12:36 AM, Albert Gardner wrote:



 	  Quote: 	
		   I have a 3 blade Aero Composit prop and in order to remove the lower cowl I

 have to pull the tail down so the front gear leg can drop down and provide

 clearance. I have a 4-wheel HF furniture dolly wilh 180 lbs of concrete mix

 on it and a block and tackle that does the job. My wing jacks (I'm glad I

 have two) are HF rams in a plywood stand. I drilled a hole for a short piece

 of threaded rod that replaces the wing tie-down so the plane can't slip off

 of the jack. There is no safety lock on the jack so I block up the axel as

 soon as I remove a wheel. 

 

 Albert Gardner

 N991RV

 Yuma, AZ

 <DSC00006 (Small).JPG>

n223rv(at)wolflakeairport
Guest

Posted: Wed Mar 17, 2010 8:16 am Post subject: Wing jacks

I purchased my wing jacks from www.aircraftjacks.com about 3 years  

ago.  I needed them small enough for my RV-4 and to extend big enough  

for my RV-10.  They work great and I highly recommend them for long  

term maintenance.  I also purchased their tail stand for which you add  

your own concrete.....



-Mike Kraus



Sent from my iPhone



On Mar 16, 2010, at 5:31 PM, "Albert Gardner" <ibspud(at)roadrunner.com>  

wrote:



 	  Quote: 	
		   I have a 3 blade Aero Composit prop and in order to remove the lower  

 cowl I

 have to pull the tail down so the front gear leg can drop down and  

 provide

 clearance. I have a 4-wheel HF furniture dolly wilh 180 lbs of  

 concrete mix

 on it and a block and tackle that does the job. My wing jacks (I'm  

 glad I

 have two) are HF rams in a plywood stand.



 Albert Gardner

 N9914RV

 Yuma, AZ



 <DSC00006 (Small).JPG>

Albert Gardner

Joined: 10 Jan 2006
Posts: 455
Location: Yuma, AZ

Posted: Wed Mar 17, 2010 1:26 pm Post subject: Wing jacks

Here is how I hold my tail down when needed. Otherwise I roll it into a

corner.

Albert Gardner

N991RV

Yuma, AZ

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_________________
RV-9A N872RV
RV-10 N991RV

Kelly McMullen

Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ

Posted: Wed Mar 17, 2010 3:09 pm Post subject: Wing jacks

If you attached a fence post of the right length, you could just put a

bolt through to secure the tail from going up or down. With it secure,

jacking on either wing tie down point, or both will raise the nose.

That is how a gear check is done on retractables.



On Wed, Mar 17, 2010 at 3:23 PM, Albert Gardner <ibspud(at)roadrunner.com> wrote:

 	  Quote: 	
		   Here is how I hold my tail down when needed. Otherwise I roll it into a

 corner.

 Albert Gardner

 N991RV

 Yuma, AZ

_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor
KCHD

tsts4

Joined: 06 Aug 2007
Posts: 167
Location: Tampa, FL

Posted: Wed Mar 17, 2010 3:23 pm Post subject: Re: Wing jacks

Has anyone used this type of jack?



http://www.averytools.com/pc-913-48-the-handy-jack-eldorado-aviation.aspx

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_________________
Todd Stovall
aka "Auburntsts" on EAA and VAF
RV-10 N728TT -- Flying

coop85(at)verizon.net
Guest

Posted: Wed Mar 24, 2010 3:04 pm Post subject: Wing jacks

If it's just to change the nosewheel, I use a 2x4 levered over a chock with

one end of the 2x4 under the front bearing and then I sit on the other end.

Sounds cheesy but it works great and then I put a block under the fork to

hold while the wheel is removed.



Marcus

40286

--

Ron B.

Joined: 17 Feb 2009
Posts: 103
Location: Nova Scotia

Posted: Fri Mar 26, 2010 3:09 pm Post subject: Re: Wing jacks

Hi.

Anyone know of a Canadian distributor for the Powerbuilt 3 ton all in one?

Thanks Ron

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