Tuesday, October 9, 2018

Wings, Bottom Wing Skins (Part 13)

After all the prep work was completed, it was time to Alumiprep, Alodine, and Akzo prime.  Below shows the seven parts that will make up the ADAHRS or GMU22 Magnetometer Mounting Bracket.

Here are the same seven pieces clecoed together.  This is the “top” view.....

.....and this is the “bottom” view.


After each of the pieces were treated with Alumiprep and Alodine, they were hung up to dry prior to getting primed.  The picture below shows the seven pieces that make up the ADAHRS or GMU 22 Magnetometer Mounting Bracket and the six Access Panels 
(3 for each Wing) used on the Left and Right Bottom Skins.

Here are the seven pieces of the ADAHRS or GMU 22 Mounting Bracket after getting primed.

Shown below is the “top” view of the ADAHRS or GMU 22 Magnetometer Mounting Brackets completely riveted together.  Additionally, the Mounting Bracket has been riveted to the J-Stiffener.  (Not sure why the color difference between the pictures above and below.  I think the one on the bottom was taken at night with the flash on my phone).

Here is the “bottom” (opposite side of the picture above) of the ADAHRS GMU 22 Magnetometer Mounting Bracket.

Here are the Left and Right Inboard and Outboard Bottom Skins and J-Stiffeners after being treated with Alumiprep and Alodine.  The next step for them is to be Akzo primed.  I’m not going to show an “after primer” picture of the Skins.  You will get to see “finished” pictures when the nutplates are installed in the Part 14.

After the Akzo primer was dry, I started installing the 48 K1100-08D nutplates on the Inboard and Outboard Bottom Wing Skins of each Wing.  I began by installing the 16 nutplates on the Left Outboard Wing Skin (completed pictures will be shown in the next post when all four Bottom Skins are finished).  During the next session, I will install the remaining 32 nutplates.