Total Members Voted: 133
Voting closed: 05/28/2020 07:21 pm
Quote from: Lars-J on 05/26/2020 07:15 pmQuote from: quasarquantum on 05/26/2020 07:09 pmQuote from: ZachS09 on 05/26/2020 06:46 pmWill F9 do a boostback burn during its descent to the drone ship?Only an entry burn, and then a landing burn. Boostback is only necessary when returning to launch site.There are occasionally short "boostback burns" (more like aiming burns) after staging if the barge is not in the optimal place for the ballistic impact point. It depends on performance margin and/or placement of barge to to weather issues.That’s what I meant by. I should’ve said “partial boostback”.I asked that question because I saw that event on the Crew Dragon ascent artwork and looked back at the Iridium-NEXT F5 flight where B1041 did a single-engine boostback burn to land in a small zone in the Pacific a little bit over 500 km downrange.
Quote from: quasarquantum on 05/26/2020 07:09 pmQuote from: ZachS09 on 05/26/2020 06:46 pmWill F9 do a boostback burn during its descent to the drone ship?Only an entry burn, and then a landing burn. Boostback is only necessary when returning to launch site.There are occasionally short "boostback burns" (more like aiming burns) after staging if the barge is not in the optimal place for the ballistic impact point. It depends on performance margin and/or placement of barge to to weather issues.
Quote from: ZachS09 on 05/26/2020 06:46 pmWill F9 do a boostback burn during its descent to the drone ship?Only an entry burn, and then a landing burn. Boostback is only necessary when returning to launch site.
Will F9 do a boostback burn during its descent to the drone ship?
Quote from: ZachS09 on 05/26/2020 09:09 pmQuote from: Lars-J on 05/26/2020 07:15 pmQuote from: quasarquantum on 05/26/2020 07:09 pmQuote from: ZachS09 on 05/26/2020 06:46 pmWill F9 do a boostback burn during its descent to the drone ship?Only an entry burn, and then a landing burn. Boostback is only necessary when returning to launch site.There are occasionally short "boostback burns" (more like aiming burns) after staging if the barge is not in the optimal place for the ballistic impact point. It depends on performance margin and/or placement of barge to to weather issues.That’s what I meant by. I should’ve said “partial boostback”.I asked that question because I saw that event on the Crew Dragon ascent artwork and looked back at the Iridium-NEXT F5 flight where B1041 did a single-engine boostback burn to land in a small zone in the Pacific a little bit over 500 km downrange.My understanding is that SpaceX does as much partial boostback as margins allow to keep from having to have the drone ship any further out then it needs to be. If they have enough margin to get back to Florida...RTLS.
Where is the landing zone for the booster, off the coast of S. Carolina?Bad weather front off the southeast coastal US right now.
I'm really looking forward to this, love SpaceX etc...But I don't think I could work for them at a time like this, I keep remembering Shepard's Prayer.The pressure must be _really_ tough. Good luck all.
The buoy near the booster zone is showing 5-6ft waves, so watching this will be important tomorrow.https://www.ndbc.noaa.gov/station_page.php?station=41004
I'm having trouble finding information on the various abort scenarios for this mission, in particular with regard to late aborts, i.e. during second stage flight. Such aborts would presumably result in non-nominal splash-downs in the middle of the Atlantic Ocean. A search in this section of the forum turned up nothing on the subject, but I probably didn't look deep enough?
That’s a long time and no Dragon-2 or variant has been up there that long. But Starliner concerns me much, much more, heck even Soyuz does, given quality control issues in Russia.
I'm having trouble finding information on the various abort scenarios for this mission, in particular with regard to late aborts, i.e. during second stage flight. Such aborts would presumably result in non-nominal splash-downs in the middle of the Atlantic Ocean. A search in this section of the forum turned up nothing on the subject, but I probably didn't look deep enough?Does anybody know what protocols are in place for such aborts and how the crew are to be rescued? I've read that such a late abort could result in a splash-down close to Ireland. How true is this? A ground track of the upcoming launch would be of help, but again, I haven't found one. Thanks for any info.
ZCZC MIATWOAT ALLTTAA00 KNHC DDHHMMSpecial Tropical Weather OutlookNWS National Hurricane Center Miami FL725 AM EDT Wed May 27 2020For the North Atlantic...Caribbean Sea and the Gulf of Mexico:Special Tropical Weather Outlook issued to discuss the area of low pressure near the southeast U.S. coast.Radar imagery indicates that the area of disturbed weather located just offshore the South Carolina Coast has become significantly better organized over the past few hours. Reports from an offshore buoy are showing that this system is producing tropical-storm-force winds. If these development trends continue, then this system is likely to become a tropical storm before it moves inland later today. Heavy rainfall could cause flash flooding over portions of the Carolinas today. Gusty winds could also produce rough marine conditions and life-threatening surf and rip currents along the coasts of Georgia and the Carolinas through today.1. For additional information, see products from your local National Weather Service office. The next Special Tropical Weather Outlook on this system will be issued by 3PM EDT Wednesday, or earlier if necessary.* Formation chance through 48 hours...high...70 percent.* Formation chance through 5 days...high...70 percent.Forecaster Latto
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