A pair of SuperDraco engines firing at the same time is far quieter than I thought it would be. The dual firing is part of SpaceX pad abort testing for the rocket engines, ensuring both engines can simultaneously ignite and throttle if they need to carry the Crew Dragon to safety.
This is the SuperDraco thruster. According to SpaceX, eight of these engines will allow the Dragon V2 spaceship to land anywhere in the planet with the same accuracy of an helicopter. Here you can see it in action, during the last test of its final certification.
If you haven't heard of Space Exploration Technologies (aka SpaceX) yet, chances are you will soon. The space transport company is leading the charge to privatize space flight in the wake of the U.S.'s decommissioned space program, and later this year will begin making delivery runs to and from the ISS with its…