I am in the process of replacing both F-405 and F-406 bulkheads on my project. One side was 1 1/2" forward of the other so I have nothing to go off of. The plans are hard to read at best.
It appears to me that the top of both bulkheads meet on the top longeron 49" back from the firewall. I am having trouble reading the measurements for the location of the bottom of the bulkheads. F-405 looks like 41 5/15 ??? and F-406 looks like 55 1/32. Setting F-406 is no problem since you set if off of the bracket bent at 18? that attaches to F-406B. I don't know where to set the bottom of F-405. it attaches to F-405B the 3/4 angle that forms the support for the front seat floor. No where in the plans to I see a measurement for how far back F-405B should be from the aft face of F-404 (spar carry through bulkhead) Am I missing something?
It appears to me that the top of both bulkheads meet on the top longeron 49" back from the firewall. I am having trouble reading the measurements for the location of the bottom of the bulkheads. F-405 looks like 41 5/15 ??? and F-406 looks like 55 1/32. Setting F-406 is no problem since you set if off of the bracket bent at 18? that attaches to F-406B. I don't know where to set the bottom of F-405. it attaches to F-405B the 3/4 angle that forms the support for the front seat floor. No where in the plans to I see a measurement for how far back F-405B should be from the aft face of F-404 (spar carry through bulkhead) Am I missing something?