100,000 rivets flying in loose formation!
But the sound of a pair of J-79s can really make the ground rumble.
Commonly seeing two F-4 s taking off (always with afterburners) in formation at night is one of my memories that had to be lived and cannot be adequately described.
Rick! It is a good thing there were so many 104 wrecks that needed to be welded together. :p