If I'm not mistaken, those warbirds are made of solid wood parts most probably mahogany. One of my hobby is woodworking and I was really wondering why they chose this material to construct those planes. If we look at battleships models, the best of the best are made with a double plank construction and not just a raw piece of wood that was shaped to form. The reason is simple, if you just take one piece of wood, it's gonna crack one day or the other with the changes in humidity in the environment... and that is even if the piece of wood is sealed, stained or painted all over.. Plank construction is more complicated cause you have to build a skeleton and then cover is with a shell... So I guess that was not possible for K&C.. So here is my fear for all those collecting those birds, will they crack one day ? Now hopefully mahogany is one of the best wood for that since it's introduction in the Western world 2 centuries ago, woodworkers enjoy the fact that it's one of the wood that will shrink & expand much less than others with changes in humidity levels.
Cheers,
Alex
Cheers,
Alex