11-18-2021
AUX fuel tanks - Pt 3
To contine the fabrication of the AUX fuel tank covers, I located and drilled the nutplate holes for the cover attach fasteners. Because I had drilled out existing fasteners (previously dimpled) I was forced to use dimpled nutplates (K1100-6) in lieu of the flat nutplates (K1000-6).
No big deal right? Well, the dimpled nutplates run about $1.90 each so after a few days of sticker shock and a few breathing exercises I placed the order.
The next step was to countersink the holes in the wing (common to the tank cover) to allow the dimpled cover to sit flat. Then I dimpled the tank cover, beveled the edges of the cover and finally installed the dimpled nutplates.
Fastener holes in AUX tank cutout
Cover dimpled and beveled
Nut plates have been installed
