9-09: Elevator Parts Priming

Before priming, i finished the edges of all 4 elevator skins using the Vixen file initially to knock off the stamping marks, then the edge deburring tool to chamfer the edges a little (very gently!), and finally some 150grit AlO2 sandpaper.

I also broke the edges of the skins where they will lay on the trailing edge pieces, and on the left skins where the trim tab goes, where they will lay on the aft spar. I also broke the leading edge top skins, where they will overlap the lower skins when i roll them.

RH skin trailing edge broken toward the centre of the elevator so it sits flush on the trailing edge "wedge"

I did not deburr the holes on the inside of the skins at all, as these are pre-punched to final size on the -14, plus they get thoroughly scuffed as part of the priming process. On the outside, i used a 3m scotchbrite / sandpaper wheel to run over the holes only, to take off the slight raised burr from the stamping process

The parts were cleaned using EkoClean firstly (in batches), then rinsed off a little, then scuffed using EkoEtch, before being dried with a combination of evaporation (not very effective), compressed air blow (yes, this can cause fisheyes i know!), and also a hair dryer, before being primed.

Lots and lots of little parts!

For the skins, i marked up the areas where the foam ribs and the trailing edge pieces will be placed, as these can't be primed (the ProSeal needs to adhere to the aluminium directly).

I even remembered to mask inside the rear spars! 

 

Ready to enter the PRIME TIME!