Video Caption: We are always excited to test our most powerful engine, the NewtonThree, for long duration. During this specific test, we completed a full ‘mission duty cycle’–a fancy way of saying that we fired the engine for as long as it would fire on a full flight to orbit. We also gimbaled the engine, meaning we changed the angle of thrust by several degrees during the course of the firing. The ability to gimbal is important, since that is one of the main ways a rocket ‘steers’ on its way to space!
As a reminder: our LauncherOne rocket has two rocket engines on board: a single NewtonThree on the main stage and a single NewtonFour on the upper stage. You can see a full duration NewtonFour firing here: https://youtu.be/AGZF4o-gwHk