"Deorbit now" can presumably lead to a land touchdown.
They would use the Dracos for last-second braking, I guess. Also, having done their due diligence, they would have a mode for using the Dracos for the whole descent in case of parachute failure.
Let's just say I'd love to see them test that eventuality in a non-crewed mission...
Forgive me if I'm straying too far into speculation land, but is it likely that they have at least simulated propulsive landing and are confident that it's theoretically possible with the physical properties of the existing capsule? Actual hardware testing is expensive but computer modeling is relatively cheap! I still wonder if a hail mary option in the flight software might be possible in the event of a chute failure.
I still wonder if a hail mary option in the flight software might be possible in the event of a chute failure
Remember these are Nasa flights and Nasa doesn't do anything on the fly. If it's not in the plan, it doesn't get done.
Quote from: vt_hokie on 01/10/2019 04:15 pmI still wonder if a hail mary option in the flight software might be possible in the event of a chute failureQuote from: kevinof on 01/10/2019 04:20 pmRemember these are Nasa flights and Nasa doesn't do anything on the fly. If it's not in the plan, it doesn't get done.If there's a chute failure during reentry they are going to do whatever is necessary to safely land the capsule, regulations notwithstanding.
Memory says that after the CRS-7 loss that recovery was added to the Cargo Dragon. The software had already been developed for Dragon 2 recovery and would have saved the Dragon and its contents.It would seem likely that, if the software had already been developed, SX would utilize that as an additional layer of safety.
That mode was to pop the chutes in the event of the loss of the booster, and save the capsule. What we're talking about here is using the Dracos to take over in the event of the loss of the chutes and land the capsule.Quote from: Kansan52 on 01/10/2019 06:37 pmMemory says that after the CRS-7 loss that recovery was added to the Cargo Dragon. The software had already been developed for Dragon 2 recovery and would have saved the Dragon and its contents.It would seem likely that, if the software had already been developed, SX would utilize that as an additional layer of safety.
This is SpaceX’s very first human crewVerge SciencePublished on 15 Jan 2019This year, if all goes well, astronauts will launch to space on a private craft for the first time in history. It’s SpaceX’s big chance to show NASA that it can be trusted with the work of ferrying astronauts to and from the international space station. We met the two astronauts selected for this historic mission and spoke with them about what’s different about working with a private company like SpaceX.Read more here: https://www.theverge.com/2019/1/15/18182243/spacex-nasa-astronauts-human-crew-commercial-space-iss-tourism-bob-behnken-doug-hurley
Does anyone know what effect the Government shut down is having / will have on the first manned dragon flight?
NASA and SpaceX tell The Atlantic that, despite speculation, the government shutdown hasn’t affected their work. NASA says the astronaut program, known as Commercial Crew, is part of a small group of NASA activities that are exempt from the government closure, including International Space Station operations, the agency says.
File No. 0023-EX-CM-2019QUESTION 4: Government Project DescriptionSpace Exploration Technologies Corp. (“SpaceX”) is a U.S. space technology companyheadquartered in California, with additional launch and test facilities in Florida and Texas. Theantenna installations included in this application will be used to perform radiofrequency (“RF”)testing in support of SpaceX's Commercial Crew Transportation Contract and CommercialResupply Services Contract with the National Aeronautics and Space Administration (“NASA”).The specific event covered is the CREW-VE-106 verification event as specified in CCT-REQ1130: ISS Crew Transportation Services Requirements, Revision D, Revision F, SSP 50808: ISSto COTS Interface Requirements Document.
QUESTION 7: PURPOSE OF EXPERIMENTNarrative SummarySpace Exploration Technologies Corp. (“SpaceX”) is a U.S. space technology company that designs,manufactures, and launches advanced rockets and spacecraft. The company is headquartered inCalifornia, and has more than 6,000 employees based at various facilities around the United States,including California, Texas, Florida, Washington, and the District of Columbia.On September 27, 2016, SpaceX applied (0091-EX-CN-2016) to the U.S. Federal CommunicationsCommission (“FCC”) for an experimental license to conduct perform radiofrequency (“RF”) testingin support of SpaceX's Commercial Crew Transportation Contract and Commercial ResupplyServices Contract with the National Aeronautics and Space Administration (“NASA”).This filing is for an extension of the test frequencies, emission designators, and locations to supportfurther testing of the hardware and software in the aforementioned license. However, unlike theprevious filed for experimental operation, the only testing to be performed under this license is forvehicle and test rack testing inside test facilities and should not cause substantial emission to theoutside, due to path loss and attenuation caused by the building structural material at all locations.
Commercial crew funding to date:Boeing: $4.82 billionSpaceX: $3.14 billion
QuoteCommercial crew funding to date:Boeing: $4.82 billionSpaceX: $3.14 billionhttps://twitter.com/SciGuySpace/status/1101231265834061824For those keeping track, that's a $540M (21%) increase for SpaceX and $620M (15%) for Boeing. Funding gap between the two is now just shy of $1.7B, up from $1.6B in 2014.
