Flight Milestones & Engine Performance - Super Heavy 火箭成功点燃 33 个 Raptor 引擎 [1][2] - 成功完成热分级，星舰点燃六个 Raptor 引擎 [3][4] - 星舰六个 Raptor 引擎全部点火，继续进入外太空 [5] - 助推器使用 12/13 个引擎进行返回 [5] - 成功完成助推器返回燃烧，热级分离 [6] - 星舰的六个引擎将继续燃烧约 5 分钟 [7] - 第二级发动机关机 (SECO) 预计在飞行 8 分 58 秒时进行 [14] - 三个真空优化引擎首先关闭，然后关闭中心三个引擎 [15] - 所有星舰 Raptor 引擎均已关闭，未进入轨道 [16] Booster Landing & Recovery - 助推器正在返回海湾的溅落区 [6][10] - 助推器使用四个超音速网格鳍引导自身通过大气层进入着陆点 [11] - 计划进行 13 个引擎的着陆燃烧以减速 [11] - 助推器着陆燃烧关闭，演示了 13 到 5 到 3 的 V3 配置 [12] - 助推器溅落在水中 [13] Trajectory & Guidance - 星舰处于标称轨道 [9] - 助推器正在向海湾的计划溅落区返回 [6] - 由于进入的是亚轨道轨迹，无论如何，星舰都将返回印度洋 [15][16]

5 4 3 2 1. We have liftoff. Go Super Heavy. Go Starship.Thanks for all the historic flights. Bad one. Eagles get you downrange.Raptor chamber pressure nominal booster and ship nominal power and telemetry. All right, we are about 45 seconds into flight. We're still getting the rattle here at Star Factory.We are seeing 33 out of 33 Raptor engines lit on Superheavy as it arcs across the Gulf. Coming up next on Max Q. That's two.So at this point, we've passed through that period of maximum aerodynamic pressure. ...

Flight Progress & Key Events - Vehicle achieved lift-off and maintained nominal booster chamber pressure [1] - Vehicle passed through Max Q (maximum dynamic pressure) [2] - Hot staging (separation of booster and Starship) was successfully executed [2][4] - Booster performed boost back burn to head towards the Gulf for splashdown [3][4][5] Engine Performance & Testing - All six Raptor engines on the ship ignited with nominal chamber pressures [4] - Booster conducted engine tests during landing burn, simulating an engine out situation by intentionally turning off one center engine and lighting one from the middle ring [6][7] - Booster successfully splashed down in the Gulf after engine tests [10] - Ship engine cutoff (SECO) was successful, achieving nominal orbital insertion [11][13][14] System Resilience & Redundancy - Super Heavy demonstrated resilience to engine out during ascent [8] - Landing burn was previously performed at the tower with an engine out, indicating system redundancy [9] Technology & Communication - Starlink provided views during the flight [12]