CJ
Quite right on the two projects of the Sixties. Many of the engineers on Apollo were ex-Avro Arrow types. The shame is that these projects could not get off the ground (no pun intended) today, even with modern technology. Just a "relofted" (to use a nautical term) Concorde would be a marvelous machine. Politics, environmental regs and NIMBYism would kill anything like it.
I was speaking with a seat mate on an airliner who happened to be a civil engineer. As a young man, he had worked on the US Interstate Highway system, said it could never be done today and widening and improving the one that exists is very hard to approve.
Mach2dude
How was takeoff performance calculated? Was it very different from subsonic jets and how did Vzf fit in?
GF