Vultee BT-13 Valiant assembly line, c. 1942.
Fullsize image: https://diqn32j8nouaz.cloudfront.net...e_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...embly_line.jpg
Previously:
https://www.homemadetools.net/forum/...398#post173423
https://www.homemadetools.net/forum/...376#post161829
https://www.homemadetools.net/forum/...004#post160534
https://www.homemadetools.net/forum/...623#post155457
https://www.homemadetools.net/forum/...518#post155029
