REFLECTOR: Canard Center Hinge

[Jeff Barnes]

Hi Richard,
 
     Any chance you weakened the torque tube by decreasing its wall thickness ?
 
Regards,
 
Jeff Barnes

--- On Wed, 4/13/11, Richard J. Gentil <richard at naples-air-center.com> wrote:


From: Richard J. Gentil <richard at naples-air-center.com>
Subject: Re: REFLECTOR: Canard Center Hinge
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Date: Wednesday, April 13, 2011, 2:27 PM



Don,


Those were the bearings I ordered last month. Their outer diameter turned it to be a fraction larger then the inner diameter of the torque tubes. I solved the issue be taking a piece of a wooden broom handle, mounting it on the end of a drill, wrapping the broom handle with sandpaper and reaming out the inner diameter of the torque tubes. 


I used normal washers as spacers and two large area washers against the center hinge to make sure the bolt could not pivot from side to side. 




Richard 

Sent from my iPhone 4

On Apr 13, 2011, at 2:31 PM, Don Johnston <don at numa.aero> wrote:




I almost always end up on the "aviation grade" part side of the fence...

The McMaster-Carr bearings are a very high quality bearing and they only cost $7.10 each. I don't have an Aircraft-Spruce version but I wouldn't be a bit surprised is they were identical.

http://www.mcmaster.com/#6384k55/=buzun1

The other thing I did was to use a large area washer on either side of each bearing that's a little smaller than the OD of the bearing.

-Don

Don Johnston
www.velocity-xl.com

Date: Wed, 13 Apr 2011 07:48:04 -0500
From: " Brett Ferrell " <reflector at velocityxl.com>
Subject: Re: REFLECTOR: Canard Center Hinge
To: reflector <reflector at tvbf.org>

There is now a [LINK:
http://www.velocityxl.com/wiki/index.php?title=Elevator_Center_Bearing]
Wiki page describing this modification, with a complete parts list with
links to the Aircraft Spruce parts page.  The mod can be purchased for
under $50 currently.  Thanks to [LINK:
http://www.velocityxl.com/album.php?albumid=24] Bill Mulrooney for the
design and [LINK: http://kal-soft.com/velocity/] Andy Millin for the
pictures.

Brett
N44VF



http://www.mcmaster.com/#6384k55/=buzun1


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