SpaceX made its rocket engine stronger by removing parts! — Transcript

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1. 0:00They spent millions building it, then
2. 0:02made it stronger by tearing parts out.
3. 0:05[music] Wait, what? Listen, because this
4. 0:08is the craziest engineering plot twist
5. 0:10ever. Back in 2019, SpaceX revealed
6. 0:14Raptor 1. [music] Pipes everywhere,
7. 0:16wires everywhere, sensors covering
8. 0:19almost every surface. [music] People
9. 0:21literally called it the Christmas tree.
10. 0:23It made around 185 tons of thrust,
11. 0:26[music] but it weighed about 2,080 kg.
12. 0:30And in rocket science, every single
13. 0:32kilogram matters. So SpaceX did
14. 0:35something insane. They started deleting
15. 0:38parts.
16. 0:39Enter Raptor 2. [music] Cleaner
17. 0:41plumbing, fewer external components,
18. 0:44simpler construction. And boom, thrust
19. 0:47[music] jumped to around 230 tons, while
20. 0:50weight dropped to just 1,630
21. 0:53kg. [music] Lighter, simpler, stronger.
22. 0:57But wait, it gets razier.
23. 0:59Raptor 3. When SpaceX revealed it,
24. 1:02people were like, [music] where did
25. 1:03everything go? The external pipes had
26. 1:06vanished.
27. 1:07Connections were redesigned. Systems
28. 1:10were integrated directly into the engine
29. 1:12itself. Now here is the twist nobody
30. 1:14expected. SpaceX once targeted 280 tons
31. 1:18of thrust, [music] but the flying Raptor
32. 1:203 is rated at around 250 tons of sea
33. 1:23level thrust [music] and 275 tons in
34. 1:26vacuum with a mass of just 1,525
35. 1:30kg.
36. 1:31That is over 500 kg lighter than Raptor
37. 1:341. Its thrust to weight ratio climbed
38. 1:37from roughly 89 to 164. [music]
39. 1:41That is an improvement of more than 80%.
40. 1:44Ha, less became more.
41. 1:46And here is the secret. [music] Fewer
42. 1:48parts mean fewer connections, fewer
43. 1:51potential leaks, and fewer things that
44. 1:53can fail.
45. 1:54Then came the real test. May 22nd, 2026.
46. 1:59Starship flight
47. 2:0133 Raptor 3 engines roared to life. That
48. 2:04is approximately 8,250 tons of combined
49. 2:08thrust. During ascent, a booster engine
50. 2:11shut down, but Starship kept flying.
51. 2:14Then Ship lost a vacuum engine [music]
52. 2:16and still kept flying.
53. 2:18It deployed 22 satellites, survived
54. 2:21reentry, and splashed down in the Indian
55. 2:24Ocean. [music] The Super Heavy booster,
56. 2:26its boost back burn ended early and it
57. 2:29splashed down hard in the Gulf. So yes,
58. 2:31[music] promising, but far from
59. 2:34finished.
60. 2:35And here is the lesson. [music] We
61. 2:36always think becoming stronger means
62. 2:39adding more,
63. 2:40but sometimes [music]
64. 2:41real progress comes from removing,
65. 2:44removing what holds you back. So tell me
66. 2:47honestly, [music] what is one thing you
67. 2:49need to remove from your life to become
68. 2:51stronger? Drop it in the comments. I am
69. 2:54reading them all. And follow this page
70. 2:56because the next engineering