The sound and the shock-wave never reached them; the Goblin outran them.
Then the sound and the shock-wave of the first blast reached them.
The shock-wave caused by the impact tapped on the yacht's side-planking a few seconds later.
Then, after the Sunday midday meal, Tom returned to his laboratory to work on ideas for a shock-wave deflector.
The young inventor sketched out the sort of shock-wave deflector which he had in mind.
Tom, meanwhile, plunged back to work on his shock-wave deflector.