@gap
Everything that you have listed, I completely agree with you.

Manual cleaning of the duplicated welded sides turned inside out, is a nightmare.))
https://yadi.sk/d/TQ6ZYJQ3379BKd
Take. I started, and you continue.

I have eliminated mistakes, which on screens. Also, has eliminated errors of a lattice of a cabin of the pilot. For elimination of all mistakes long boring fuss is necessary. It is simpler to make new model.