Arthurista wrote:Need to decide on which is to be my strategic bomber, if I can only have one:
(a) Generic flying dorito stealth bomber, developed in the mid-80s, but shaped somewhat like the X-47B.
(b) A not-Avro 730 mach 3 aircraft.
If I pick the latter, how feasible is it to re-engine it with modern turbofans?
For a Mach 3 aircraft or really almost any aircraft designed primarily for supersonic flight you would not want a turbofan engine, you would want a turbojet, as these are much more efficient at supersonic speeds. This is why even Concorde used turbojets.
The stealth bomber is probably a better pick though, from an industrial experience perspective (it's a more widely-applicable technology and therefore a more useful one to invest in) and from a cost/upgradeability perspective. Many of the most expensive technologies in the supersonic bomber will not be all that applicable elsewhere and will require separate R&D to keep current.