My father worked at the company back then, designing the rudders. After that, he worked at Airbus until retirement. He always said that his coworkers at Cargolifter where really good engineers and much brighter on average than at Airbus, I always wonder where they might be if they didn't run out of funding / if they would have started the company today, where people are much more willing to invest into risky firms like these.
https://en.wikipedia.org/wiki/CargoLifter