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using wing jacks

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ghinman(at)mts.net
Guest

Posted: Thu Oct 25, 2007 6:22 am Post subject: using wing jacks

For you guys using wing jacks.Do you put the jack

against the tiedown ring,or use a pillow and platform arrangement?



-- 



George H. Inman

ghinman(at)mts.net

ronlee(at)pcisys.net
Guest

Posted: Thu Oct 25, 2007 7:22 am Post subject: using wing jacks

I use a 2x4 block drilled out to go over the moving part of the jack.



Then that is covered with a rubber mat material for softness.



Ron Lee

---

webmaster(at)flion.com
Guest

Posted: Thu Oct 25, 2007 7:51 am Post subject: using wing jacks

Short steel bolt with the same thread as the tiedown used as a hardpoint.

Or you can go the Lancair route and machine a cup to fit over the jack with

a stud to screw into the tiedown mount.  I've also found that I can use my

engine hoist to lift at the steps; good for getting a main wheel up.  I can

get the nose wheel up by connecting the tail tiedown to a tiedown point with

a come-along and pulling the tail down.



Patrick Kelley - RV-6A - gluing the tip-up canopy in place



--

n223rv(at)wolflakeairport
Guest

Posted: Thu Oct 25, 2007 8:32 am Post subject: using wing jacks

I too just use a grade 8 bolt threaded into the tie down blocks.  This will not let the plane slip off the jacks, at least not with my arrangement.

-Mike



--

jim jewell

Joined: 09 Jan 2006
Posts: 82
Location: Kelowna B.C. Canada

Posted: Thu Oct 25, 2007 8:39 am Post subject: using wing jacks

Geoge,



This suggestion assumes aviation style wing jacks are being used. Failing 

that jack stability is a must.



Get two 2" or 3" x 3/8" national course bolts. cut off the heads.  Remove 

the Van's tie down rings. screw in the headless bolts. If needed modify the 

jack stand by drilling a shallow hole (depression) to accept the headless 

bolts.



Jim in Kelowna



---

_________________
"I never make mistreaks"

Mark Phillips in TN

Joined: 10 Jan 2006
Posts: 431
Location: Columbia, TN

Posted: Thu Oct 25, 2007 10:02 am Post subject: using wing jacks

Tiedown ring.

  

 Mark do not archive



See what [quote][b]

_________________
From The PossumWorks...

cbrxxdrv(at)aol.com
Guest

Posted: Thu Oct 25, 2007 10:42 am Post subject: using wing jacks

Vans sells a kit that includes a attachment for the gear legs (a hose clamp will work) and

 2 screw in jack points for the wings.....I have grove gear so the gear leg attachments don't do much for

 me but the jack points are wonderful. 

 

 Sal

 

   RV8 N898SC

 

   

 

 --

Dale Ensing

Joined: 11 Jan 2006
Posts: 571
Location: Aero Plantation Weddington NC

Posted: Thu Oct 25, 2007 10:51 am Post subject: using wing jacks

I use the jack points that Van's sells with his Jackpoint Kit. They appear 

to be a hard plastic and screw into the wing tie down points.



http://www.vansaircraft.com/cgi-bin/catalog.cgi?ident=1193337723-284-291&browse=airframe&product=jackpoint



The wing jack is cupped and the jackpoint fits in very nicely.

Dale Ensing



 	  Quote: 	
		                         For you guys using wing jacks.Do you put the jack

 against the tiedown ring,or use a pillow and platform arrangement?

 George H. Inman

 ghinman(at)mts.net

_________________
Dale Ensing
RV-6A
Aero Plantation
Weddington NC

mr.gsun+rv-list(at)gmail.
Guest

Posted: Mon Oct 29, 2007 6:27 am Post subject: using wing jacks

I used the hard plastic jackpoint with a borrowed wingjack.  Worked great.  Then I got worried that the plastic would shatter and the wing would jam down on the jack and make a big dent.  So I got a short bolt w/same threads and used that with some help one side at a time to dismount and rotate my tires to even out the wear.   Still I had this worry that somehow, someway the jack would come off and drive itself up thru the beautiful, fragile wing structure.  A nightmare in real life!!   That's why I wanted something that would jack up the landing gear itself.   



Now, after a bunch of landings (some better than others), I'm going to replace tires & tubes.  I got a piece of 3/4 steel rod to weld to the top of my scissor jack.  Also bent a short piece of 3/8 rod to weld on for a cranking handle.  Hope to weld and paint it today because it isn't going to be georgeous flying weather in Western Washington until later in the week. 



Anyone got a great source for tires?  Michelins are on there now and they work fine.



Greg



On 10/25/07, Dale Ensing < densing(at)carolina.rr.com (densing(at)carolina.rr.com)> wrote:[quote]--> RV-List message posted by: "Dale Ensing" < densing(at)carolina.rr.com (densing(at)carolina.rr.com)>



I use the jack points that Van's sells with his Jackpoint Kit. They appear

to be a hard plastic and screw into the wing tie down points. 



http://www.vansaircraft.com/cgi-bin/catalog.cgi?ident=1193337723-284-291&browse=airframe&product=jackpoint 



The wing jack is cupped and the jackpoint fits in very nicely.

Dale Ensing



[quote]                       For you guys using wing jacks.Do you put the jack

 against the tiedown ring,or use a pillow and platform arrangement?  [quote][b]

sbuc(at)hiwaay.net
Guest

Posted: Mon Oct 29, 2007 8:05 am Post subject: using wing jacks

Greg Williams wrote:

 	  Quote: 	
		   I used the hard plastic jackpoint with a borrowed wingjack.  Worked great.

 Then I got worried that the plastic would shatter and the wing would jam

 down on the jack and make a big dent.  So I got a short bolt w/same threads

 and used that with some help one side at a time to dismount and rotate my

 tires to even out the wear.   Still I had this worry that somehow, someway

 the jack would come off and drive itself up thru the beautiful, fragile wing

 structure.  A nightmare in real life!!   That's why I wanted something that

 would jack up the landing gear itself.


	


Seeing a jack go through a wing is indeed a real nightmare! We had this 

happen to a local -6A, and fortunately (?!?) the jack *only* penetrated 

the bottom skin without damaging either the spar or fuel tank. But it 

was a mess and very disheartening to deal with.



I don't recall how the jack was attached to the wing but since an RV can 

be readily jacked up via a gear leg, and a jack failure is more or less 

a minor event when jacking a gear leg, I have *no* desire to use a jack 

on the wing.



Sam Buchanan

peter(at)mather.com
Guest

Posted: Mon Oct 29, 2007 9:33 am Post subject: using wing jacks

The best system I've seen for jacking is as  follows:

  

 Bolt two scissor jacks one either end of a strong  trestle. Bolt a piece of 2*4" wood to the tops of the scissor jacks. Pad the  wood with foam or similar. Place under the fuselage across the spar and jack the  aircraft off the ground winding each jack a bit at a time to keep things even.  This is really a variation on the motorbike jack but much cheaper anjd more  stable and allows both mains to be serviced at the same time. Move up to the  firewall to jack the nosewheel (where applicable).

  

 Best regards

  

 Peter

   [quote][b]

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