Helen Lewin
RS-25 Launch Support Lead at L3Harris (formerly Aerojet Rocketdyne), who supports NASA's Space Launch System RS-25 engines for the Artemis Moon missions.
2
APPEARANCES
2
PODCASTS
May 30, 2026
49:33
What is so special about this engine that has made it endure through the space shuttle into the, the SLS?
Helen LewinGUEST
The, the hydrogen that we use for cooling is fed back into the main combustion chamber, so it's all burned.
50:44
... on one side, and then there's spikes, uh, sticking out on the, on the side.
51:44
What is so special about this engine that has made it endure through the space shuttle into the, the SLS?
Helen LewinGUEST
The, the hydrogen that we use for cooling is fed back into the main combustion chamber, so it's all burned.
52:55
... on one side, and then there's spikes, uh, sticking out on the, on the side.