Received the raw material for the F857B parts. Laid out and constructed both left and right components. I'll set and drill them to the airframe tomorrow. I also finished drilling the F826 & F827 belly skins to the ribs and bulk heads. Al though not perfect everything is lining up and look good. I temporarily set the F842 aft skin in place and the alignment looks like it will not be to far off from straight. I'll check this tomorrow with a string.