magnemoe Posted November 8, 2019 Share Posted November 8, 2019 2 hours ago, tater said: Yeah, I was wondering about fabricating a fairing that ends up sealed as the lander structure as per that pic I posed (crappy): Not sure if making the tanks the structure helps or hurts. It's fascinating that a Direct Ascent lander is possible with 2 just launches, though. If the (long pole) of prop transfer was added to such a design, you have a reusable lander, too (though it shares the same issue, that reuse at the Moon basically means replacing the propellants using another vehicle that masses about the same as the lander anyway). Problem is that you need to take this into orbit, you can drop fairing once out of atmosphere. In the later case why not return the second stage too as in starship. The problem is that falcon 9 is pretty marginal here. New glen should be able to pull it off to with an reduced payload Quote Link to comment Share on other sites More sharing options...
tater Posted November 8, 2019 Share Posted November 8, 2019 Just now, magnemoe said: Problem is that you need to take this into orbit, you can drop fairing once out of atmosphere. In the later case why not return the second stage too as in starship. The problem is that falcon 9 is pretty marginal here. New glen should be able to pull it off to with an reduced payload Well, in the case of Dragon/Crew Dragon the spacecraft is the fairing (aeroshell). Dumping the fairing mass is valuable, clearly, but I was wondering about the lightest possible shell that would also serve as tankage. If the hypergols are in smaller tanks anyway, then dumping the fairing normally makes sense, and the spacecraft is a Dragon pressure vessel, a bunch of tanks, some engines, and some legs. Given the "naked FH" concept, there is a ton of margin to make a lander, and indeed a lander and a transfer stage if that is a desirable concept vs 2 stage, or even direct ascent designs. That's the amazing thing---naked FH can send a lander that can do a round trip from gateway without staging. Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted November 8, 2019 Share Posted November 8, 2019 26 minutes ago, tater said: Well, in the case of Dragon/Crew Dragon the spacecraft is the fairing (aeroshell). Dumping the fairing mass is valuable, clearly, but I was wondering about the lightest possible shell that would also serve as tankage. If the hypergols are in smaller tanks anyway, then dumping the fairing normally makes sense, and the spacecraft is a Dragon pressure vessel, a bunch of tanks, some engines, and some legs. You also run into issues like radiators, solar, and so forth. I could see a multipart truncated fairing, where you have a jettisonable fairing over the capsule and upper RCS, a central propellant tank that is the same diameter as the fairing, and a lower fairing around the landing legs/engines/RCS that is not jettisoned until separation. Quote Link to comment Share on other sites More sharing options...
tater Posted November 8, 2019 Share Posted November 8, 2019 To be honest, part of it was that the fairing with legs looks pretty cool, sort of 2016 ITS-ish. Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted November 8, 2019 Share Posted November 8, 2019 10 hours ago, Wjolcz said: He's basically trying to become Weyland with all these companies and tech essential for off-world colonization and sustainability. Well, his stated goal IS Building Better Worlds™️.... Quote Link to comment Share on other sites More sharing options...
tater Posted November 8, 2019 Share Posted November 8, 2019 Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted November 8, 2019 Share Posted November 8, 2019 (edited) wait, what? Spoiler Going live in about 15 minutes from the official channel. Wasn’t expecting this, anyone know what’s going on? orrrrr not. Someone’s been faffing about in the SpaceX media room it seems... Edited November 8, 2019 by CatastrophicFailure Quote Link to comment Share on other sites More sharing options...
ThatGuyWithALongUsername Posted November 8, 2019 Share Posted November 8, 2019 3 minutes ago, CatastrophicFailure said: wait, what? Going live in about 15 minutes from the official channel. Wasn’t expecting this, anyone know what’s going on? Read the description, it's the same as the original Starship Update, complete with September 28th date. I think someone accidentally clicked a button somewhere... Quote Link to comment Share on other sites More sharing options...
RocketSimplicity Posted November 8, 2019 Share Posted November 8, 2019 15 minutes ago, ThatGuyWithALongUsername said: Read the description, it's the same as the original Starship Update, complete with September 28th date. I think someone accidentally clicked a button somewhere... And now it's gone down. They made a mistake obviously. Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted November 8, 2019 Share Posted November 8, 2019 17 minutes ago, ThatGuyWithALongUsername said: Read the description, it's the same as the original Starship Update, complete with September 28th date. I think someone accidentally clicked a button somewhere... So it would seem. Aww, man... Quote Link to comment Share on other sites More sharing options...
Raven Industries Posted November 8, 2019 Share Posted November 8, 2019 Or instead of an accidental button push, someone knows how closely we watch for that sort of thing, and decided to have a bit of fun. Quote Link to comment Share on other sites More sharing options...
tater Posted November 9, 2019 Share Posted November 9, 2019 Assuming the launch goes well Monday, SpaceX will be the second largest satellite operator. If they do another couple launches, they'll be first (beating PlanetLab). Quote Link to comment Share on other sites More sharing options...
tater Posted November 9, 2019 Share Posted November 9, 2019 Given the use of hypergolics this reply is likely correct. Quote Link to comment Share on other sites More sharing options...
RealKerbal3x Posted November 9, 2019 Share Posted November 9, 2019 Just now, tater said: Given the use of hypergolics this reply is likely correct. Yup...you don’t want hypergolic fumes wafting across populated Florida... Quote Link to comment Share on other sites More sharing options...
tater Posted November 9, 2019 Share Posted November 9, 2019 3 minutes ago, RealKerbal3x said: Yup...you don’t want hypergolic fumes wafting across populated Florida... Exactly. And given the last such test... Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted November 9, 2019 Share Posted November 9, 2019 On shore winds? Looks more like a meteor shower. Quote Link to comment Share on other sites More sharing options...
mikegarrison Posted November 9, 2019 Share Posted November 9, 2019 1 hour ago, CatastrophicFailure said: On shore winds? Looks more like a meteor shower. Sharknado. Quote Link to comment Share on other sites More sharing options...
tater Posted November 10, 2019 Share Posted November 10, 2019 Live in... 21 hours, lol. Quote Link to comment Share on other sites More sharing options...
tater Posted November 10, 2019 Share Posted November 10, 2019 Hans Koenigsmann in an interview: https://www.handelsblatt.com/technik/forschung-innovation/spacex-chefingenieur-im-interview-die-lage-deutschlands-ist-eine-herausforderung-fuer-raketenstarts/25190580.html?ticket=ST-74994757-WzD6V61Ldpp39XYHgGrH-ap6 (in German) Quote “I've changed my strategy and, in principle, given up trying to convince Ariane executives of reusability. When I say that Ariane should continue like before, I seem to make more people think. Although the project to continue to build a disposable rocket is about the same as developing a good analog phone now.” Ouch. Also: Quote Link to comment Share on other sites More sharing options...
cubinator Posted November 10, 2019 Share Posted November 10, 2019 So this Starlink mission is a fourth flight for the booster? Quote Link to comment Share on other sites More sharing options...
linuxgurugamer Posted November 10, 2019 Share Posted November 10, 2019 13 minutes ago, cubinator said: So this Starlink mission is a fourth flight for the booster? Yes, and also reusing a payload shroud Quote Link to comment Share on other sites More sharing options...
tater Posted November 10, 2019 Share Posted November 10, 2019 The 2 fairing halves they are reusing were not even caught, they were fished out of the water. Quote Link to comment Share on other sites More sharing options...
Scotius Posted November 10, 2019 Share Posted November 10, 2019 Salty clam shells Quote Link to comment Share on other sites More sharing options...
tater Posted November 10, 2019 Share Posted November 10, 2019 Quote Link to comment Share on other sites More sharing options...
tater Posted November 10, 2019 Share Posted November 10, 2019 Quote Link to comment Share on other sites More sharing options...
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