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-   -   Rudder Trailing Edge Wedge (https://vansairforce.net/community/showthread.php?t=158174)

Tiger28760 02-26-2018 12:00 PM

Rudder Trailing Edge Wedge
 
How did you drill the #40 holes perpendicular to the cord of the wedge?

azflyer21 02-26-2018 12:37 PM

I used the extra length that was cut off and reversed it putting the two pieces together so it created a flat surface.

MED 02-26-2018 12:45 PM

Cleaveland Tool makes a nice tool to make this job easy. About $25, I believe.

rvbuilder2002 02-26-2018 12:46 PM

Quote:

Originally Posted by azflyer21 (Post 1242307)
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.

Mudfly 02-26-2018 01:02 PM

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

rvbuilder2002 02-26-2018 01:23 PM

Quote:

Originally Posted by Mudfly (Post 1242314)

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.

Bavafa 02-26-2018 01:44 PM

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.

dejavu 02-26-2018 02:19 PM

Quote:

Originally Posted by rvbuilder2002 (Post 1242312)
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.

PilotjohnS 02-26-2018 02:35 PM


This template is cut to the angle specified in section 5.

smash 02-26-2018 02:44 PM

I used the table saw to cut the appropriate angle on piece of 2 x 2 lumber- one for drilling the holes, another for the counter sink.


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