Close-up of the LH forward area. Welding in these flanges stiffened up the panel SUBSTANTIALLY – Wow! The bonded flanges do as well, but we seldom have them bonded and dried onto a bare center section – we bond them in during final assembly. One downside to this though is that these welded bonnets do not do well in crashes – on bonded bonnets, the bonding seperates and the panels bend, but on these welded bonnets, the whole thing gets crunched badly and the spot-welds tear – it’s a real disaster, and just another reason why so few survived.