NASA dixit:
“Exploration Ground Systems at NASA’s Kennedy Space Center in Florida achieved a significant milestone on the path to supporting the agency’s first integrated launch of the SLS and Orion spacecraft by completing the major construction on the main flame deflector in the upgraded flame trench at Pad B. The new main flame deflector is critical to safely deflecting the plume exhaust from the massive rocket during launch. Measuring approximately 57 feet wide, 43 feet high and 70 feet long, the deflector’s north side is slanted at about a 58-degree angle and will divert the rocket’s exhaust, pressure and intense heat to the north at liftoff. “
Credits Video: NASA