Hello everyone, I happened to look at the wing structure of a Stinson Reliant and am curious as to how they were manufactured? The structure looked to be built out of welded steel tubing and are the ribs steel too? Are there any other aircrafts that were built in this manner and how did they deal with the heat treating? Are there any similarly sized homebuilts that used a construction method like this? If it's an all metal wing how would they fasten the sheet metal to the structure? Thanks guys.