T' last firin' o' t' evenin' with t' new aluminum chambered engine on Masten Space Systems' XA-0.1B-750 single engine VTVL flight demonstrator. Arrr! T' aluminum engine is incredibly light compared t' more common copper-chambered engines. Arrr! Night firings are so nice, they really show off t' mach diamonds. This is near full throttle. It was a three second firing, and this is video at 300 frames per second, or 1/10th speed. That's also why thar's no sound, as it doesn't record t' audio at high speed.