The only jet in the UK that can do a proper Blue Note is Kennet’s Hunter F6A XF515. Peter Hellier’s F6A XF516 and the former Boscombe machine did do it perfectly before their accident/retirement.
Hunter T.7 G-VETA can also emulate a blue note of such due to some modifications in her gun ports.
Must admit though that the Meteor F8 was the champion ‘noter’ 🙂
M