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<blockquote data-quote="A Man Called Charolais" data-source="post: 63479"><p>So, the first stage detonated after stage separation and the second stage detonated towards the end of its first burn as it went out of view from the ground. It appears that the stages detonated due to trajectory drift - so a flight control issue.</p><p></p><p></p><p>Test vectors:</p><p></p><p><em>Launchpad</em> - there was no visible debris field suggesting the new water deluge system worked, this requires further examination of the pad but it seems largely intact.</p><p><em>Liftoff</em> - the vehicle did not move sideways off the launch pad this time indicating the system took off as planned. Once again, this massive vehicle cleared the pad and proceeded to the main phase of its launch.</p><p><em>Engine integrity</em> - all the engines worked nominally indicating that there was no debris field from the launch and any quality issues for the mass produced engines were resolved.</p><p><em>Max Q</em> - the vehicle successfully went through the maximum dynamic pressure again, remaining intact. It isn't known if there was any damage on the systems due to the pressure that caused any subsequent problems to guidance or controls but they have more data on it. The construction methods are again vindicated although we have no information on any structural alignment issues.</p><p><em>Stage separation</em> - the two stages successfully separated this time with the addition of the hot staging ring (which means that the Starship portion (2nd stage) could start its engines before the Booster portion (1st stage) was out of the way). Damage due to this early engine start may have been the reason why the first stage was lost.</p><p><em>Flight termination system</em> - the auto-detonation system operated successfully this time for both stages</p><p><em>Engine gimbal system</em> - a new electrical, rather than hydraulic, system was installed for this test flight. This may be a failure point.</p><p><em>Orbital insertion</em> - this did not go as planned, apparently during a phase where the vehicle was just on the boundary of communications range and very close to the shut down of the first burn of the Starship's engines.</p><p></p><p></p><p>We should remember that this is the first time that much of this equipment was used in this way. The primary hold-ups to the second test flight were the flight termination system, the launch pad, and the environmental impact. All these appear to have been resolved. Other items were the engine problems and stage separation from the first test. These appear to have been resolved. So much winning.</p><p></p><p> It's likely another test will be approved in the near future after a close examination of this launch.</p></blockquote><p></p>
[QUOTE="A Man Called Charolais, post: 63479"] So, the first stage detonated after stage separation and the second stage detonated towards the end of its first burn as it went out of view from the ground. It appears that the stages detonated due to trajectory drift - so a flight control issue. Test vectors: [I]Launchpad[/I] - there was no visible debris field suggesting the new water deluge system worked, this requires further examination of the pad but it seems largely intact. [I]Liftoff[/I] - the vehicle did not move sideways off the launch pad this time indicating the system took off as planned. Once again, this massive vehicle cleared the pad and proceeded to the main phase of its launch. [I]Engine integrity[/I] - all the engines worked nominally indicating that there was no debris field from the launch and any quality issues for the mass produced engines were resolved. [I]Max Q[/I] - the vehicle successfully went through the maximum dynamic pressure again, remaining intact. It isn't known if there was any damage on the systems due to the pressure that caused any subsequent problems to guidance or controls but they have more data on it. The construction methods are again vindicated although we have no information on any structural alignment issues. [I]Stage separation[/I] - the two stages successfully separated this time with the addition of the hot staging ring (which means that the Starship portion (2nd stage) could start its engines before the Booster portion (1st stage) was out of the way). Damage due to this early engine start may have been the reason why the first stage was lost. [I]Flight termination system[/I] - the auto-detonation system operated successfully this time for both stages [I]Engine gimbal system[/I] - a new electrical, rather than hydraulic, system was installed for this test flight. This may be a failure point. [I]Orbital insertion[/I] - this did not go as planned, apparently during a phase where the vehicle was just on the boundary of communications range and very close to the shut down of the first burn of the Starship's engines. We should remember that this is the first time that much of this equipment was used in this way. The primary hold-ups to the second test flight were the flight termination system, the launch pad, and the environmental impact. All these appear to have been resolved. Other items were the engine problems and stage separation from the first test. These appear to have been resolved. So much winning. It's likely another test will be approved in the near future after a close examination of this launch. [/QUOTE]
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