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Jacking the RV-10

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dan(at)syz.com
Guest

Posted: Wed Feb 22, 2017 4:57 pm Post subject: Jacking the RV-10

I'm building the wheel fairings and am at the part in the plans where I jack up the plane for alignment so the wheels are oriented as they are in flight (though they don't give specific recommendations on how to do this).  I've built wing jacks, along with a socket that screws into the wing tiedown bolt holes that a well-supported bottle jack can fit into.  I'm not too worried about the jack slipping out of place, and so far as I know, other RV-10 builders have jacked up their planes in this manner.  But I just wanted to check before I do it that I'm not doing something stupid - the tiedown bolt hole locations are strong enough for this, aren't they?  Obviously, the wings are strong enough to support the weight of the plane, but I just wanted to double check first, considering that when jacking the wings, all the force is in the one location of the tiedown bolt hole, instead of distributed more evenly along the wing as it is in flight.



Any gotchas to be aware of before I do this, other than the obvious making sure the nose wheel is well chocked first, and raising both wings simultaneously to keep things relatively level?



Also, the plans call for lateral and longitudinal levelling when fitting the fairings.  When the plane sits on the ground, the level datum (door sill) is tipped a few degrees nose high - but they say to only jack up the plane until the main wheels are no more than 1/16" off the floor.  I haven't done it yet, but in doing so, will that straighten out the lateral (pitch) axis sufficiently level as the weight is taken off the main gear legs?  I can raise the nose wheel for lateral levelling if it's too nose low with the mains 1/16" off the floor, but if it's still nose high, the only way I could see to laterally level it would be to dig a hole for the nose gear 



Thanks!



Dan

---

Dan Charrois

President, Syzygy Research & Technology

Phone: 780-961-2213

- The Matronics RV10-List Email Forum -

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Bob Turner

Joined: 03 Jan 2009
Posts: 885
Location: Castro Valley, CA

Posted: Wed Feb 22, 2017 5:17 pm Post subject: Re: Jacking the RV-10

Fine-tune the fore-aft leveling by adding/letting out air from the nose tire.

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_________________
Bob Turner
RV-10 QB

flying-nut(at)cfl.rr.com
Guest

Posted: Wed Feb 22, 2017 5:22 pm Post subject: Jacking the RV-10

Nothing to worry about using the socket/bolt as a jack point.  recently 

did that on an RV-9.  I would put a large area washer between the wing 

and the socket to prevent a smiley from the socket .... since it's at an 

angle to the jack.  When I did my wheel pants I jacked up the mains and 

used a scissor jack under the nosegear nut to level the door sill.  The 

1/16" isn't critical .... you just need to get the mains and the nose 

wheel off the ground to simulate level flight.

Linn



On 2/22/2017 7:52 PM, Dan Charrois wrote:

 	  Quote: 	
		   



 I'm building the wheel fairings and am at the part in the plans where I jack up the plane for alignment so the wheels are oriented as they are in flight (though they don't give specific recommendations on how to do this).  I've built wing jacks, along with a socket that screws into the wing tiedown bolt holes that a well-supported bottle jack can fit into.  I'm not too worried about the jack slipping out of place, and so far as I know, other RV-10 builders have jacked up their planes in this manner.  But I just wanted to check before I do it that I'm not doing something stupid - the tiedown bolt hole locations are strong enough for this, aren't they?  Obviously, the wings are strong enough to support the weight of the plane, but I just wanted to double check first, considering that when jacking the wings, all the force is in the one location of the tiedown bolt hole, instead of distributed more evenly along the wing as it is in flight.



 Any gotchas to be aware of before I do this, other than the obvious making sure the nose wheel is well chocked first, and raising both wings simultaneously to keep things relatively level?



 Also, the plans call for lateral and longitudinal levelling when fitting the fairings.  When the plane sits on the ground, the level datum (door sill) is tipped a few degrees nose high - but they say to only jack up the plane until the main wheels are no more than 1/16" off the floor.  I haven't done it yet, but in doing so, will that straighten out the lateral (pitch) axis sufficiently level as the weight is taken off the main gear legs?  I can raise the nose wheel for lateral levelling if it's too nose low with the mains 1/16" off the floor, but if it's still nose high, the only way I could see to laterally level it would be to dig a hole for the nose gear 



 Thanks!



 Dan

 ---

 Dan Charrois

 President, Syzygy Research & Technology

 Phone: 780-961-2213



 -----

 No virus found in this message.

 Checked by AVG - www.avg.com

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

flying-nut(at)cfl.rr.com
Guest

Posted: Wed Feb 22, 2017 5:43 pm Post subject: Jacking the RV-10

I jacked up the mains using jacks just inside the gear and used a 

scissors jack under the nose gear to find out where level was.  Used 

cinder blocks and small bottle jack under the firewall (2x4 across the 

fuse) to level with all three wheels off the floor and did all three 

pants before putting back on the floor.

Linn



On 2/22/2017 8:18 PM, Bob Turner wrote:

 	  Quote: 	
		   



 Fine-tune the fore-aft leveling by adding/letting out air from the nose tire.



 --------

 Bob Turner

 RV-10 QB





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=466523#466523



 -----

 No virus found in this message.

 Checked by AVG - www.avg.com

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Kelly McMullen

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

Posted: Wed Feb 22, 2017 6:12 pm Post subject: Jacking the RV-10

See if you can't borrow a set of real aircraft jacks. You will need the plane in the air for a day or two, and you don't want to be relying on a jerry rigged jack. Carriage bolts with the round head work fine for jack points. I used the same jacks that I use to do retraction checks on my Mooney. I think you will be surprised how many aircraft owners have a set of jacks.



-sent from the I-droid implanted in my forearm

 

On Wed, Feb 22, 2017 at 5:52 PM, Dan Charrois <dan(at)syz.com (dan(at)syz.com)> wrote:

 	  Quote: 	
		  --> RV10-List message posted by: Dan Charrois <dan(at)syz.com (dan(at)syz.com)>

 

 I'm building the wheel fairings and am at the part in the plans where I jack up the plane for alignment so the wheels are oriented as they are in flight (though they don't give specific recommendations on how to do this).Â  I've built wing jacks, along with a socket that screws into the wing tiedown bolt holes that a well-supported bottle jack can fit into.Â  I'm not too worried about the jack slipping out of place, and so far as I know, other RV-10 builders have jacked up their planes in this manner.Â  But I just wanted to check before I do it that I'm not doing something stupid - the tiedown bolt hole locations are strong enough for this, aren't they?Â  Obviously, the wings are strong enough to support the weight of the plane, but I just wanted to double check first, considering that when jacking the wings, all the force is in the one location of the tiedown bolt hole, instead of distributed more evenly along the wing as it is in flight.

 

 Any gotchas to be aware of before I do this, other than the obvious making sure the nose wheel is well chocked first, and raising both wings simultaneously to keep things relatively level?

 

 Also, the plans call for lateral and longitudinal levelling when fitting the fairings.Â  When the plane sits on the ground, the level datum (door sill) is tipped a few degrees nose high - but they say to only jack up the plane until the main wheels are no more than 1/16" off the floor.Â  I haven't done it yet, but in doing so, will that straighten out the lateral (pitch) axis sufficiently level as the weight is taken off the main gear legs?Â  I can raise the nose wheel for lateral levelling if it's too nose low with the mains 1/16" off the floor, but if it's still nose high, the only way I could see to laterally level it would be to dig a hole for the nose gear 

 

 Thanks!

 

 Dan

 ---

 Dan Charrois

 President, Syzygy Research & Technology

 Phone: [url=tel:780-961-2213]780-961-2213[/url]

 

 

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

Leeverett

Joined: 07 Jan 2013
Posts: 14

Posted: Wed Feb 22, 2017 6:13 pm Post subject: Jacking the RV-10

Is that a yearly fee?  From: owner-rv10-list-server(at)matronics.com <owner-rv10-list-server(at)matronics.com> on behalf of Linn Walters <flying-nut(at)cfl.rr.com>

 Sent: Wednesday, February 22, 2017 7:39:46 PM

 To: rv10-list(at)matronics.com

 Subject: Re: Re: Jacking the RV-10  

 

 

  --> RV10-List message posted by: Linn Walters <flying-nut(at)cfl.rr.com>

 

 I jacked up the mains using jacks just inside the gear and used a 

 scissors jack under the nose gear to find out where level was.  Used 

 cinder blocks and small bottle jack under the firewall (2x4 across the 

 fuse) to level with all three wheels off the floor and did all three 

 pants before putting back on the floor.

 Linn

 

 On 2/22/2017 8:18 PM, Bob Turner wrote:

 > --> RV10-List message posted by: "Bob Turner" <bobturner(at)alum.rpi.edu>

 >

 > Fine-tune the fore-aft leveling by adding/letting out air from the nose tire.

 >

 > --------

 > Bob Turner

 > RV-10 QB

 >

 >

 >

 >

 > Read this topic online here:

 >

 > http://forums.matronics.com/viewtopic.php?p=466523#466523

 >

 >

 >

 >

 >

 >

 >

 >

 >

 >

 >

 > -----

 > No virus found in this message.

 > Checked by AVG - www.avg.com

 >

 >

 

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jesse(at)saintaviation.co
Guest

Posted: Wed Feb 22, 2017 6:13 pm Post subject: Jacking the RV-10

Van's recommended point for jacking up the plane is the tie downs. The lift in flight is over a bigger surface, but the forces are transferred through the spar to the fuselage. 



Jesse Saint

Saint Aviation, Inc.

352-427-0285

jesse(at)saintaviation.com



Sent from my iPad



 	  Quote: 	
		   On Feb 22, 2017, at 7:52 PM, Dan Charrois <dan(at)syz.com> wrote:

 

 

 

 I'm building the wheel fairings and am at the part in the plans where I jack up the plane for alignment so the wheels are oriented as they are in flight (though they don't give specific recommendations on how to do this).  I've built wing jacks, along with a socket that screws into the wing tiedown bolt holes that a well-supported bottle jack can fit into.  I'm not too worried about the jack slipping out of place, and so far as I know, other RV-10 builders have jacked up their planes in this manner.  But I just wanted to check before I do it that I'm not doing something stupid - the tiedown bolt hole locations are strong enough for this, aren't they?  Obviously, the wings are strong enough to support the weight of the plane, but I just wanted to double check first, considering that when jacking the wings, all the force is in the one location of the tiedown bolt hole, instead of distributed more evenly along the wing as it is in flight.

 

 Any gotchas to be aware of before I do this, other than the obvious making sure the nose wheel is well chocked first, and raising both wings simultaneously to keep things relatively level?

 

 Also, the plans call for lateral and longitudinal levelling when fitting the fairings.  When the plane sits on the ground, the level datum (door sill) is tipped a few degrees nose high - but they say to only jack up the plane until the main wheels are no more than 1/16" off the floor.  I haven't done it yet, but in doing so, will that straighten out the lateral (pitch) axis sufficiently level as the weight is taken off the main gear legs?  I can raise the nose wheel for lateral levelling if it's too nose low with the mains 1/16" off the floor, but if it's still nose high, the only way I could see to laterally level it would be to dig a hole for the nose gear 

 

 Thanks!

 

 Dan

 ---

 Dan Charrois

 President, Syzygy Research & Technology

 Phone: 780-961-2213

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

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