Trim the horizontal birch plywood braces to accommodate the 3/8″ PVC foam later.
Cut a block of 2″ thick Urethane foam to fit on top of the plywood braces between the aft landing gear bulkhead and the firewall.
Vacuum.
Trim the horizontal birch plywood braces to accommodate the 3/8″ PVC foam later.
Cut a block of 2″ thick Urethane foam to fit on top of the plywood braces between the aft landing gear bulkhead and the firewall.
Vacuum.