HS Prep and Assembly

Although I have not posted in a few weeks, much activity has been occurring on the horizontal stabilizer.  Three long weekends in a row have gone into drilling, scuffing, washing, brightening, alodine, priming and assembly.

IMGP4242May 24 – final stages of jigging and match drilling complete.

 

 

 

 

IMGP4247May 25 – Rita, the not-yet Riveter. Here she is helping me dimple the HS skins with the DRDT-2 machine.

 

 

 

 

IMGP4255May 26 – mixing the DP401LF catalyst with the DP40LF priming for the HS skins.  First the skins were washed with Pre-kote, then dried in the shed.

 

 

 

 

IMGP4258May 26 – suited and ready for skin priming.  Not much can be seen inside the shed once priming starts.

 

 

 

 

IMGP4271May 31 – dunk tank extended to 12′ to hold the HS spars.

 

 

 

 

IMGP4272May 31 – brightening underway. This was the first time I used the garage for corrosion treatments.

 

 

 

 

 

IMGP4280May 31 – another view of the extended dunk tank.  One of the spars is bubbling in the phosphoric acid brightener on the right, a rinse tank is on the left.

 

 

 

 

 

IMGP4287May 31 – the alodine is on the right, rinse on the left.

 

 

 

 

 

IMGP4289June 7 – all parts are primed and ready for riveting.

 

 

 

 

 

IMGP4290June 7 – Rich came over to help rivet on hinges, attachment brackets, spar doublers, caps and stringers. We squeezed as many rivets as possible, only had to buck 6 rivets on the custom made attachment brackets.  Turns out the bracket, spar flange, and doubler combination is too thick for my Main Squeeze 3″ yoke (takes a 4-10

 

 

 

 

 

IMGP4292June 8 – the internal parts of the stingers and ribs must be riveted together before attaching the skins, because afterwards there is no access.

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