Spotters books in the seventies and Guiness always quoted the CV990 Coronado as the fastest subsonic cruise with the Trident close behind and fastest british machine.
Are the ex Spantax 990's still decomposing at Palma?, think I remember seeing one execute a smoketrailing departure from LBA in 85. There is/was a beatifully preserved Swissair example in the Swiss transport museum at Lugano, landed at an airforce base across the lake and then floated over on pontoons.