I started the build session by installing the forward and aft seat floors. In order to fabricate the center tunnel cover (and F-741A angles) the seat floors need to be installed.
I also installed the fuel valve cover and plate just to see how it all looks and fits.I started fabrication of the F-741A angles according to the dimensions given in the plans. I chose to leave the material long at this point and I will trim to fit as needed rather than rely on the length given on the plans.
Once the first hole is defined, I clamped the angle to the seat floor and back drilled the next holes using the seat floor as a template.
I only used the seat floor to define the hole and i finished drilling on the drill press. I put the seat floors back together, cleacoed the parts in, and took measurements. I was ready to start trimming the Aft of the F-741A angles. In the end, the fit is good. I'm going to stop here and get the flap system set up and then I'll finish the tunnel cover.