Quote from: gongora on 01/03/2020 11:26 pmQuote from: SteveU on 01/03/2020 11:01 pmQuestion - won’t the AFSS automatically sense the departure of the capsule as a flight anomaly triggering a termination command?Only if they defined such a rule for this mission. The booster regularly shuts down its engines, separates from the upper stage, moves around, relights engines, etc. AFTS fires if it strays outside of the defined flight corridor. They are shutting down the booster engines first, which the capsule (or wherever the logic resides in avionics) should sense as abnormal at that point in the flight, register it as a launch vehicle failure, and trigger the capsule abort.Now that you mention this, it got me thinking that the AFTS should eventually trigger depending on how the launch corridor is defined. If the corridor is a 2D map then it will most likely not detonate unless strong winds pull the Falcon outside, bit it most likely will if the corridor is defined a 3D thing, like a bent pipe. Anyone knows how it is defined for FTS purposes?
Quote from: SteveU on 01/03/2020 11:01 pmQuestion - won’t the AFSS automatically sense the departure of the capsule as a flight anomaly triggering a termination command?Only if they defined such a rule for this mission. The booster regularly shuts down its engines, separates from the upper stage, moves around, relights engines, etc. AFTS fires if it strays outside of the defined flight corridor. They are shutting down the booster engines first, which the capsule (or wherever the logic resides in avionics) should sense as abnormal at that point in the flight, register it as a launch vehicle failure, and trigger the capsule abort.
Question - won’t the AFSS automatically sense the departure of the capsule as a flight anomaly triggering a termination command?
I KNOW this has been asked but I can't find it. Do we know that the second stage or even the booster will be fully loaded?
Hearing that NASA and SpaceX are now targeting no earlier than Jan. 18 for Crew Dragon's Inflight Abort Test. Falcon 9 static fire set for as early as the end of this week.https://twitter.com/nextspaceflight/status/1214271793113919488
Crew Dragon should be physically ready & at the Cape in Feb, but completing all safety reviews will probably take a few more months
I'm starting to worry that this might push back the crewed flight.
NET January 18, 2020 on Falcon 9 (core 1048.4) from LC-39A at Kennedy Space Center.
The last comment triggered the questionWhere is the Dragon recovery crew ship deployed on a crew launch? Near where a first stage failure would cause the dragon to land? Where a second stage failure would drop it?Will they "cheat" and station the ship near the expected splash down from maxq?
I’m looking forward to putting this milestone behind us and move on to actual crew flights. I expect this to look a similar to the failed CRS-7 flight. Maybe I’m missing something. It will be nice to get this done, SpaceX clear that milestone and get some $, and then back to Starlink and wait for the first crew launch.
Over on SFN they mention that the plan is to shut the 9 Merlins off before separation. Isn't the whole point of doing the test at max Q is to verify it will work in an actual flight? That is to say with the engines firing as they normally would.
Once the launch escape sequence begins, Falcon 9’s first stage Merlin engines will shut down and Crew Dragon’s SuperDraco thrusters will begin their firing sequence
