I blew parts of this one. This video doesn’t have the best bit of what I saw but, if I hadn’t told you that, you’d probably not know. When the Buccaneer was being run up, they undertook a bunch of tests on various systems. The wings were folded and unfolded. The speedbrake was extended and retracted. The bomb bay was rotated. The bit I didn’t get for some reason was the blown flaps. To get the chunky Bucc on to the small decks of the UK carriers, they utilised flap blowing. Air was ducted from the compressors of the engines to the flaps and this improved the low speed lift. It had been raining when the demo was undertaken and the blowing of the flaps was really visible with the moisture getting blown around. Sadly, that is not in this video. Everything else is though.