The 2-percent scale models of the SLS boosters and core stage engines are ignited for a 100 millisecond, hot-fire test. The test was used to validate the design of the models.
Image credit: NASA/MSFC
› Image: Two-percent scale models of the SLS solid rocket boosters and core stage RS-25 engines› Image: Scale model sizes compared› Concept: RS-25 engines power Space Launch System