reaver engines to get that rocket off the ground. and it's the test of one of those that we are here to film today. is this your baby? or is this one of your babies? this is one of my babies. 0k. sporting her lucky launch shoes, brigitte 0akes will be studying the rocket test in great detail. from an engine perspective, we want to make sure that our engines start up healthy, steady state that is healthy and we're getting the thrust and power levels that we need. and a lot of that, most of all of that, we can be able to test on the ground, because those are the things that we want to make sure are healthy in orbit. what's the height of it? is it pretty muchjust a horizontal flame? it doesn't go too high? now, we've brought along a friend to film the test. remember gav? he is one half of the slow mo guys,