Wing Kit

Fuel Tank Drain Flange And Attach Angle

 

05/22/04, 3.0 hrs

 

Today, I started trying to remember where I left off during my last real building session.   I decided to start drilling the fuel drain flange (VA-112).  I lined the center hole up with the pre-punched hole in the skin and oriented the pre-countersunk rivet holes so that they lined up forward to aft.

Once I had my alignment close, I used a quick clamp to hold it in position.

This is a staged photo, but to ensure that I was lined up forward and aft, I measured from the center of the most forward (and most aft) rivet hole to the edge of the skin.  I had to rotated the drain flange slightly so that the two measurements were equal.  Theorectically, my holes should line up forward to aft now.

I drilled the first hole and stuck a cleco in it.  After each hole, I stuck a cleo in it....  Duh....  When I was done, it looked great. 

Okay, here is the first screw-up I FOUND today.  On my 5/10/04 and 5/11/04 log entres I detailed how I fabricated the tank attach angle and how I cut the inspection hole into the R-703 tank rib.  Okay, here is the screw-up part.  When I THOUGHT I was working on the right wing inboard rib....  I had actually cut the inspection hole on the outboard rib.  Dag-BERNIT!!!!  Okay, it is not a big deal yet.  I can just exchange the inboard rib on the left wing, put it on the right outboard wing rib location.  Take the rib I previously cut the inspection hole for and fabricated the attach angle and use it on the left wing.  Then it is just intuitively obvious to the most casual observer all I have to do is correctly cutout the inboard rib on the right wing and fabricate the attach angle for the right wing...  Did I lose anybody???

The bad part of this whole deal is I thought I was going to move forward today and right out of the gate this morning I have to back track on the attach angle and rib.  I guess I am moving forward, as I won't have to do this again when I work on the left wing...

Again, it took me about 2 hours to cut the attach angle as that is some HEAVY angle stock...  I had aluminum chips flying everywhere by the time I was done.

I am pretty happy with both attach angles.  They turned out really good.  Lots of filing, fitting, filing some more AND fitting AGAIN... 

Some of the tools I was using and aluminum shavings I generated by the pound....

The last thing I decided to do today was to fabricate T-714 clip which is riveted to the fuel filler flange and is used to support the fuel tank vent line.  I just used some scrap aluminum I had from the emp trim kit.  Van's doesn't offer any dimensions other than make it out of .025" aluminum and a 1/2" wide.  Okee-Dokee, done.

Decided to call it an early night to watch a movie with Tami.  Chick flick ya know:  Something's Gotta Give.

 

       


Last Updated: May 23, 2004