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1) the Dragon initiated the F5 booster shutdown when its sensors detected that it had reached the pre-programmed abort velocity 2) the Dragon initiated the esca
by vibrolax 7y ago
1) the Dragon initiated the F5 booster shutdown when its sensors detected that it had reached the pre-programmed abort velocity
2) the Dragon initiated the escape according to the abort sequence, not by ground command
3) the fireball was initiated by structural failure as the F5 broke up due to aerodynamic forces, not by the range safety destruct.
4) All of these abort sequence actions were explained in SpaceX's live stream.
- krisoft 7y agoMinor nitpick about point 3. John Insprucker said around 13:40 in the stream: "our simulation show that the Falcon will likely break apart due to the tumbling, instead of having the destruct system triggered and destroying the rocket." So what you wrote at point 3 is only likely, but not certain. (Unless of course you know from some source, that they have confirmed the sequence of events since.)
- brianwawok 7y agoWell point 3 means it didn’t have a blow up at time Y feature. If there was no plan to blow it up and simulations said it would likely blow up, isn’t a pretty safe conclusion that predicated explosion happened?
- JshWright 7y agoThe upper stage (which is wired to the same FTS) hit the ocean intact.
- skykooler 7y agoIf the flight termination system had been activated, the upper stage would have been unzipped by the same detonation cord. Since it hit the ocean intact we can presume the FTS was not activated.
- JshWright 7y agoF[alcon]5 was a concept that never made it past very early designs. The rocket SpaceX flies is the Falcon9.
- LeonM 7y agoI think he is referring to the 'block 5' Falcon, i.e. the current iteration in the development cycle of the Falcon 9.