DozyWannabe
Which is presumably one of the factors in why those designs can't supercruise (not that supercruise was considered a must-have in a fighter of that era), and one of the reasons that once the old girl was supersonic, none of them could catch her.
Not really DW, it was not so much due to the simpler secondary airflow systems, more to do with the design of the engine and intake, and only Concorde achieved the following: The engine itself should be able to operate with a more or less constant turbine entry temperature and with the HP and LP spools operating as close as possible to their individual surge boundaries throughout the entire flight envelope. The intake itself had to operate at a pressure recovery of 94%, no other intake to date had even come close to Concorde, and typical figures of 65-70% are still common. Without all this you did not get the required level of propulsive thrust and supercruise is just not possible without afterburning/reheat. The Concorde intake was also unique in producing far less secondary induced aerodynamic drag than other designs.
The 'old girl' as you call her really was amazing though, wasn't she?
Dude
