Xd the great Posted September 1, 2018 Share Posted September 1, 2018 8 hours ago, AVaughan said: TBH, I'm more concerned with the landing on Earth. If something goes wrong with the transition from re-entry to vertical landing, then it's potentially going to be fatal for any crew members. Ejection might be feasibly, for some of the flight envelope, but making the control/crew cabin detachable, with integrated launch abort thrusters and parachutes for landing can get you both launch escape functionality, and similar landing escape functionality. (Again only intended for use on Earth, I agree that it isn't going to help at Mars, and I'm not talking about a capsule big enough for 100 people, just 12 or so crew, and only on the first few manned BFRs). BFR has a huge payload capacity to and from Mars. Using afew of tons of that payload capacity for a detachable crew capsule, in the case of a problem during earth ascent/landing might be worthwhile. One thing we learnt (or at least should have learnt) from Columbia and Challenger, is that vehicle and mission designers should consider the possibility of an unanticipated and potentially catastrophic failure, and as much as is feasible design the vehicle/mission so that the crew still has the best chance of survival as is feasible. (Yeah, you could transfer crew in LEO after the ascent. If you get things right, aero-capturing into Earth orbit and transfering crew in Earth orbit might also be possible at mission end, but if you anything goes wrong during that aero-capture, then what's the plan B ?). Great idea, the ejection seats are good. For the failed aerocapture, i suggest a bunch of engine burns. Should be sufficient to place the bfr in an orbit around earth. Then we can refuel the ship and land. Actually, the space shuttle did not have a detachable capsule was due to someone worrying that it might fire accidentally in space. Dude. Quote Link to comment Share on other sites More sharing options...
sh1pman Posted September 1, 2018 Share Posted September 1, 2018 27 minutes ago, Xd the great said: For the failed aerocapture, i suggest a bunch of engine burns. Should be sufficient to place the bfr in an orbit around earth When performing aerocapture, BFS doesn’t have the fuel to do any burns other than landing, couple hundred m/s dv max. Quote Link to comment Share on other sites More sharing options...
Xd the great Posted September 1, 2018 Share Posted September 1, 2018 1 hour ago, sh1pman said: When performing aerocapture, BFS doesn’t have the fuel to do any burns other than landing, couple hundred m/s dv max. assuming the aerocapture failed... bfr is drifting off into space. Some of the KE is lost through aerocapture, and perhaps a lunar gravity assist could help. But if bfr is not drifting out into space, it must be in a orbit or preparing to land somewhere. Quote Link to comment Share on other sites More sharing options...
RCgothic Posted September 1, 2018 Share Posted September 1, 2018 Assuming aerocapture fails, either enough speed has been braked to establish an atmosphere intercepting orbit in which case you'll get a second attempt (although the trajectory may be very harsh on a second attempt or have too long a period), or you're still on an escape course flying off into interplanetary space again. Quote Link to comment Share on other sites More sharing options...
tater Posted September 1, 2018 Share Posted September 1, 2018 Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted September 1, 2018 Share Posted September 1, 2018 Interesting. Didn’t the first two FH boosters arrive already integrated tho? Quote Link to comment Share on other sites More sharing options...
tater Posted September 1, 2018 Share Posted September 1, 2018 Is a goal of Block 5 that any can be used as FH side boosters? Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted September 1, 2018 Share Posted September 1, 2018 42 minutes ago, tater said: Is a goal of Block 5 that any can be used as FH side boosters? That was already a thing with Block 4 I thought? That would be cool if they could just slap the nose on down at the launch site. If it’s that simple, I wonder if they’re still considering flying boosters back from the drone ship? Quote Link to comment Share on other sites More sharing options...
Xd the great Posted September 2, 2018 Share Posted September 2, 2018 2 hours ago, CatastrophicFailure said: That was already a thing with Block 4 I thought? That would be cool if they could just slap the nose on down at the launch site. If it’s that simple, I wonder if they’re still considering flying boosters back from the drone ship? Yes, reusing boosters is always a goal, no matter for falcon 9 or FH. Quote Link to comment Share on other sites More sharing options...
sh1pman Posted September 2, 2018 Share Posted September 2, 2018 Are there any numbers for all-block-5 FH lift capability? The ones on their site haven’t changed since block 4 demo flight, so I assume they’re now outdated. Quote Link to comment Share on other sites More sharing options...
chazbanx Posted September 2, 2018 Share Posted September 2, 2018 Can someone show me how to build the falcon 9 with the mods Quote Link to comment Share on other sites More sharing options...
IncongruousGoat Posted September 2, 2018 Share Posted September 2, 2018 2 hours ago, chazbanx said: Can someone show me how to build the falcon 9 with the mods This isn't really the thread to be asking that question in. I recommend you take your question to the Add-on Discussion subforum. Quote Link to comment Share on other sites More sharing options...
ment18 Posted September 2, 2018 Share Posted September 2, 2018 21 hours ago, sh1pman said: Are there any numbers for all-block-5 FH lift capability? The ones on their site haven’t changed since block 4 demo flight, so I assume they’re now outdated. I'm pretty sure they are accurate. SpaceX wasnt ever advertising a block 4 falcon heavy, the demo was a weird mix of 3 and 4 anyway. Quote Link to comment Share on other sites More sharing options...
Xd the great Posted September 3, 2018 Share Posted September 3, 2018 2 hours ago, ment18 said: I'm pretty sure they are accurate. SpaceX wasnt ever advertising a block 4 falcon heavy, the demo was a weird mix of 3 and 4 anyway. Or maybe they were just too lazy and wanted to preserve the extra payload for testing second stage reuseability. Quote Link to comment Share on other sites More sharing options...
tater Posted September 4, 2018 Share Posted September 4, 2018 Quote Link to comment Share on other sites More sharing options...
tater Posted September 4, 2018 Share Posted September 4, 2018 Quote Link to comment Share on other sites More sharing options...
Val Posted September 5, 2018 Share Posted September 5, 2018 Moved a page of colonization posts to the Colonization thread. Quote Link to comment Share on other sites More sharing options...
tater Posted September 5, 2018 Share Posted September 5, 2018 Chris B said static fire happened already. Quote Link to comment Share on other sites More sharing options...
tater Posted September 5, 2018 Share Posted September 5, 2018 Quote Link to comment Share on other sites More sharing options...
cubinator Posted September 5, 2018 Share Posted September 5, 2018 Woohoo! I should watch this one live. It's been a while. Quote Link to comment Share on other sites More sharing options...
Scotius Posted September 5, 2018 Share Posted September 5, 2018 Word, bro Any news about fairing recovery? Where is Mr. Steven? Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted September 5, 2018 Share Posted September 5, 2018 6 minutes ago, Scotius said: Word, bro Any news about fairing recovery? Where is Mr. Steven? West coast last I heard. Quote Link to comment Share on other sites More sharing options...
tater Posted September 5, 2018 Share Posted September 5, 2018 (edited) So we have a launch Saturday night at the Cape, and that's it for September. Oct there is: Oct. 7 Falcon 9 • SAOCOM 1A Launch time: TBDLaunch site: SLC-4E, Vandenberg Air Force Base, California October ? Falcon 9 • Iridium Next 66-75 Launch time: TBDLaunch site: SLC-4E, Vandenberg Air Force Base, California "4th Quarter" there is: 4th Quarter Falcon 9 • Es’hail 2 Launch window: TBDLaunch site: Cape Canaveral, Florida November: November ? Falcon 9 • Spaceflight SSO-A Launch time: TBDLaunch site: SLC-4E, Vandenberg Air Force Base, California November ? Falcon 9 • Crew Dragon Demo 1 Launch window: TBDLaunch site: LC-39A, Kennedy Space Center, Florida Nov. 29 Falcon 9 • SpaceX CRS 16 Launch window: TBDLaunch site: Cape Canaveral, Florida Quote NET Nov. 30 Falcon Heavy • STP-2 Launch window: TBDLaunch site: LC-39A, Kennedy Space Center, Florida ^^^ NSF has this as NET March 2019. The above is from Spaceflightnow November ? Falcon 9 • Radarsat Constellation Mission Launch time: TBDLaunch site: SLC-4E, Vandenberg Air Force Base, California December: December ? Falcon 9 • GPS 3-01 Launch window: TBDLaunch site: Cape Canaveral, Florida Quote Late 2018 (?) Falcon Heavy • Arabsat 6A Launch window: TBDLaunch site: LC-39A, Kennedy Space Center, Florida ^^^NSF has this as Q1 2019. Edited September 5, 2018 by tater Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted September 5, 2018 Share Posted September 5, 2018 That is a depressing lack of launches. We may not see anything out of the Cape until the crew demo. Quote Link to comment Share on other sites More sharing options...
Ultimate Steve Posted September 5, 2018 Share Posted September 5, 2018 15 minutes ago, CatastrophicFailure said: That is a depressing lack of launches. This is when you know you are a nerd beyond the point of no return. Quote of the day! I agree with you. Quote Link to comment Share on other sites More sharing options...
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