The loudest thing I have ever heard in my life was an EE Lightning chained down on a test pad at RAE Farnborough back in the 1950's. I had just arrived for services day on the Thursday & was making my way to the spectator area. They were running both engines flat out & then started the Scorpion rocket motor mounted between them. My ears are still ringing.
I swear this is true although I've never seen it mentioned anywhere or seen a single photo of it.
English Electric Lightning.....
Matt
People Eating Tasty Animals.
