Rear wing spar

[uk_figs]

Just finished the rear wing spar and have a quick question, do most people dimple the top flange where the aileron bracket reinforcing plates are mounted or do they countersink? Double plate looks as thick as the main spar flange which Van's recomend to machine countersink.
Just about to start fluting the ribs, any way to make this quick easy and fun

 

[Captain_John]

Hi Dave,

I am countersinkin 'em!

The way I see it is, the material is thick enough, a series of dimples would be silly and the shop head side will be solid material.

Hope this helps!

CJ