Are the Thunderbird craft as featured in Gerry Andersons classic childrens series aerodynamically feasible designs?
The engineers working on Concorde calculated that TB2 would actually have been able to fly, even with forward facing wings. Apparantly the first public unveiling of Concorde was accompanied with the Thunderbirds theme tune. As for TB1 and TB3, I hope that some clever people can provide you with the answers whilst not shattering my childhood illusions at the same time.