After a bit of a break, I finally cut out bulkhead number 7 this morning. That completes all the bulkheads.
Which is a good job because I don’t have any 12mm plywood left. I do have a pile of offcuts which looks as much plywood as is in the bulkheads.
Next job, before I start to cut out the longitudinals, is to make the support rails, floors and doublers which are glued to the bulkheads before assembly on the building frame