Finished bulkhead F2 by cutting in the clearance holes for access to instruments. Started bulkhead F8. Sandwiched the aluminum blanks between the forming blocks for final trimming and also for drilling holes and cutting slots for flange relief. Then removed the aluminum from the sandwich and cut off the flange allowances to bring the forming blocks to final size. After forming the four individual components, bulkhead F8 was assembled as directed on the plans.