CSI Starbase: Hot Staging Troubles... and Booster 9 on Test flight 2

This is more than an hour long video. Prepare yourself to dive a bit deep, as you can now consider yourselves warned.

Even a somewhat geeky dude like me got lost in some of these details. The one thing I definitely got out of this presentation is that the project is amazingly complex.

To oversimplify a bit, one of the new things being attempted here is the scale of the ship. It has to carry a massive amount of liquid fuel, while managing these complex maneuvers in suborbital space. Such manuevers require intense complications in plumbing and engineering that can withstand the enormous stresses involved. SpaceX has had success with Falcon Heavy, which manages 27 engines. In comparison, Starship's booster has 33 engines, and a much bigger gas tank. Whereas Falcon Heavy is divided into 3 main sections, Starship's booster is all under one roof, so to speak. The bigness of the mechanism entails certain consequences, one of which is how to manage so much liquid fuel while executing a boost back maneuver.

Most folks who follow this know about the fuel sloshing problems. This video will dive deeper into that. You may be diving deeper than you figured on, and even when you do, you won't necessarily have the complete picture. Just an educated guess is about all you will have. Some of this is going to be considered privileged information not available to the general public. The narrator presents enough to almost get him into trouble-- as he mentions.

This is one of the few of this channel's videos that I've watched. I'm impressed. It will upgrade your understanding if you have the time for it.