This weekend I finally bit the bullet and modified the cockpit floors to make them removable. The basic design uses pop rivets to fasten the cockpit floors, which means they are essentially non-removable. I wanted to be able to remove them to inspect the structure underneath, so I finally modified the bottom of the F-805 and F-806 bulkheads so the floors can be removed. I enlarged all the mounting holes to take #8 screws, and started installing all the anchor nuts. All the visible areas will be fastened with countersunk screws, so the floors will be flat. The hidden areas will get round head screws. It is a lot of extra work, but it'll pay dividends a few years down the road.