unsafervguy
En-Route
From what I've seen, RVs have incredible step by step documentation and are created to be easy to assemble with lots of (at least partially) prefabricated parts. Something like a T-18 (and I have some experience in this area) is built from just the blueprints (no "builders manual") and you have to fabricate everything from flat stock that you source yourself. You have to figure out which parts to make first. You need to sort out how to assemble it. You have to figure out which size rivet goes in which hole... That takes a lot more work, a lot more head scratching... So it's easy to see why an "insert tab A into slot B" RV would be so much more popular. However, once it is in the air, all of those advantages are behind you.
Behind you? So was my buddies T18 every time I flew with him in my rv-4.......