From Astrobotic on YT.
Astrobotic today announced the successful hot fire test of its Chakram rotating detonation rocket engine (RDRE) at NASA’s Marshall Space Flight Center in Huntsville, Alabama.
Two Chakram engine prototypes completed eight successful hot-fire tests, accumulating more than 470 seconds of total run time without any discernible damage to the engine hardware. The campaign included a 300-second continuous burn, which is now believed to have set the record for longest duration hot firing of an RDRE engine to date.
During testing, each engine produced more than 4,000 pounds of thrust, making Chakram one of the most powerful RDREs ever demonstrated.