To: Notso Fantastic
It has gotten to the point if I want to establish in my mind what was happening at some point in the past I have to look at my resume. The part about Douglas building a subscale Class A mockup of the C5-A was correct. At that time both Boeing and Douglas were designing the 747 and the DC-10 respectively. Douglas wanted to compete with the 747, which was yet to fly. The Class A mockup would give them a leg up if Douglas got the C5-A contract.
As far as a high wing 747 I believe that Boeing had to comply with the C5-A specs which dictated a high wing design. From a commercial application it would be difficult to operate a high wing 747.
So forgive an old man who lets his alligator mouth overload his hummingbird ass. I stand corrected.