I finished the longerons last night and started putting skins on the bulkheads. Paula was happy to get the bulkheads (aka "nesting dolls") out of the living room. Van was right - it really is fun to start putting big pieces together. It's surprising how rigid things get when you put on the skins. That's semi-monocoque aircraft construction where the skins carry part of the load. If you follow the link in the previous sentence, scroll up one paragraph as there is a picture of an RV-7 with the caption "The Van's Aircraft RV-7 fuselage is slender for high speed flight". I like speed!