Bottom rails, vertical stab
Many of the empennage parts had been precut in between other building task and were ready for forming. The obligatory particle board form blocks were cut, smoothed, rounded, etc and the rib were carefully formed. Of course, with the curved flanges, the parts came out of the forms with ripples in the flanges and curved like a banana :( It was finally time to use the shrinker. A few soft presses straightened the part and we drilled and clecoed the ribs to UCA and UCB.