3 ms·I was lucky enough to be on-base for this launch and landing. The sound was something else.by cuSetanta 4y agoI was lucky enough to be on-base for this launch and landing. The sound was something else.darknavi 4y agoQuadruple booms right?cuSetanta 4y agoYeah, 2 in rapid succession for each of the boosters. Really took us by surprise just how loud they are from the SpaceX hangar.