Date:	11-5-2009
Number of Hours:	0.50
Brief Description:	Dimpled and Countersank stiffeners
Had some coffee this morning and dimpled the tank stiffeners. Recall I had to make two replacement stiffeners from 063 angle because two were missing from the original set. I decided to countersink the two thicker stiffeners to receive the tank skin dimples. The Tank dimple die set I used created a deeper dimple than normal. Everything fit nice and tight with the countersunk stiffeners. Of course, I practiced four countersinks first on a piece of scrap to get the precise depth needed.