Thanks Brett! I have read and watched many documentaries on Hughes. So much info! He seemed to go really downhill after the XF-11 crash. That is when the morphine and codeine became a part of his life and really did change him. Living in constant pain takes a toll on your behaviour and health. Nonetheless, his contributions to aviation will always stand out. Yes, it is unfortunate that the aircraft was prohibited from using more metal in the construction. Difficult to say how well it would have held up. Cheers!