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  #1  
Old 02-26-2018, 12:00 PM
Tiger28760 Tiger28760 is offline
 
Join Date: Feb 2017
Location: Overgaard, AZ
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Default Rudder Trailing Edge Wedge

How did you drill the #40 holes perpendicular to the cord of the wedge?
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  #2  
Old 02-26-2018, 12:28 PM
control control is offline
 
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cant remember, I probably did that one on free hand letting the drill follow the holes in the VA-140.

For some other edges I made a wooden block with an angle that would make the drill go 90 degrees to the cord.
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  #3  
Old 02-26-2018, 12:37 PM
azflyer21 azflyer21 is offline
 
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I used the extra length that was cut off and reversed it putting the two pieces together so it created a flat surface.
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  #4  
Old 02-26-2018, 12:45 PM
MED MED is offline
 
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Cleaveland Tool makes a nice tool to make this job easy. About $25, I believe.
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Last edited by MED : 02-26-2018 at 12:56 PM.
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  #5  
Old 02-26-2018, 12:46 PM
rvbuilder2002 rvbuilder2002 is offline
 
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Quote:
Originally Posted by azflyer21 View Post
I used the extra length that was cut off and reversed it putting the two pieces together so it created a flat surface.
If you reference to the surface of the extra wedge, you would not be drilling perpendicular to the center line of the trailing edge wedge. You would be drilling perpendicular to the opposite side of the trailing edge wedge.
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  #6  
Old 02-26-2018, 01:02 PM
Mudfly Mudfly is offline
 
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EDIT I misread the original post. As Scott explains below, the tool I list in the link should only be used when countersinking the holes of the trailing edge and not for final drilling the #40 holes perpendicular to the chord line. Sorry for the misinformation.
http://www.cleavelandtool.com/Drill-.../#.WpRnhWinHrc
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Last edited by Mudfly : 02-26-2018 at 10:56 PM.
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  #7  
Old 02-26-2018, 01:23 PM
rvbuilder2002 rvbuilder2002 is offline
 
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Quote:
Originally Posted by Mudfly View Post
I didn't even know Mike was selling this tool, but it is not made in a way that it should be used to final drill the wedge. Only for doing the machine countersinking.

The desire is for the holes to be final drilled perpendicular to the cord center line. Not one of the sides

This tool is aligning the side of the wedge square to the chuck (if used in a drill press), so it is fine to use in place of the simple method described in Section 5 of the construction manual, for doing the machine countersinking of the wedge, but not for final drilling.
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  #8  
Old 02-26-2018, 01:44 PM
Bavafa Bavafa is offline
 
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I used a wooden block cut to the angle that would make the drilling 90 to the cord and the back side of the block is set for flush for the counter sinking which needs to be 90 to the surface and not the cord. I have no use for it anymore and if you were nearby, I could just send it out to you.

I may have the measurements (angle) for the cut and will look it up tonight.
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  #9  
Old 02-26-2018, 02:19 PM
dejavu dejavu is offline
 
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Quote:
Originally Posted by rvbuilder2002 View Post
If you reference to the surface of the extra wedge, you would not be drilling perpendicular to the center line of the trailing edge wedge. You would be drilling perpendicular to the opposite side of the trailing edge wedge.
As azflyer21 hinted, I used the extra cut-off wedge as a guide clamped to the drill press. The aft (pointed end) of the TE wedge inserted into the fwd of the cut-off wedge should get you close to the chord line for drilling.

When counter sinking, as azflyer21 & Scott mentioned, I reversed the extra cut-off wedge placed under the TE wedge should provides a perpendicular to the TE wedge surface.
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  #10  
Old 02-26-2018, 02:35 PM
PilotjohnS PilotjohnS is offline
 
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This template is cut to the angle specified in section 5.
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