FYI, I may have mentioned it before but my Grandfather was a joiner (furniture maker) and he built the wings for Mossies in a London street during WWII. He said they built one end, then the local Bobby stopped the traffic while they walked it out into the street, did a 180 and walked the other end back into the workshop. When they were done a truck came around, dropped off the materials for a new one, and took the completed one away. I guess from the way he descrind it the Mosquito had a continuous spar from wing tip to wing tip?