tater Posted April 22, 2021 Share Posted April 22, 2021 (edited) 2 hours ago, kerbiloid said: I hope, SpaceX succeeds with cylindric Starship, so I will be able to treat this as a viable design for KSP, because it would simplify a lot. It does have aero surfaces, though (whatever you want to call the flaps). How aerobraking with a plain version might or might not be done is a different issue. Edited April 22, 2021 by tater Quote Link to comment Share on other sites More sharing options...
RCgothic Posted April 22, 2021 Share Posted April 22, 2021 With RCS in the high atmosphere so aero forces don't overpower the control authority would be my guess. Quote Link to comment Share on other sites More sharing options...
SOXBLOX Posted April 22, 2021 Share Posted April 22, 2021 (edited) 3 hours ago, kerbiloid said: quoted with no argument but "In Musk we trust". Earlier I pointed out the SpaceX had considered recovering F9 second stages by putting a heatshield and landing thrusters on it. They scrapped the idea for cost reasons, but it's a cylinder, and they considered reentering and recovering it. There's another argument. I've also pointed out that your argument based on historical designs not being cylinders is a poor one, first because of the small sample set of manned craft, and second because Starship has a totally different set of design requirements. 2 hours ago, kerbiloid said: If I started answering these points, they would say I repeat again, so I better will refrain from that, cause it's scepticism vs believes, and religious discussions are against forum rules. LOL. But no. Edited April 22, 2021 by SOXBLOX Quote Link to comment Share on other sites More sharing options...
tater Posted April 22, 2021 Share Posted April 22, 2021 Also, that nose cone inside a metal cage is apparently being moved. If t heads to the pad, the purpose is probably fairly destructive. Since it's not pressurized, they must be trying to crush it or something. Quote Link to comment Share on other sites More sharing options...
RCgothic Posted April 22, 2021 Share Posted April 22, 2021 It's a tension member construction, so it's definitely for applying external loads. Aero simulator is my guess. Quote Link to comment Share on other sites More sharing options...
tater Posted April 22, 2021 Share Posted April 22, 2021 3 minutes ago, RCgothic said: Aero simulator is my guess. How the unpressurized section deals with max q, lateral aero loads, etc? Quote Link to comment Share on other sites More sharing options...
RCgothic Posted April 22, 2021 Share Posted April 22, 2021 (edited) Yes, that exactly! More max Q than lateral is my reading of the design, but it might be capable of a bit of asymmetric loading. Edited April 22, 2021 by RCgothic Quote Link to comment Share on other sites More sharing options...
tater Posted April 22, 2021 Share Posted April 22, 2021 Also: Quote Link to comment Share on other sites More sharing options...
RCgothic Posted April 22, 2021 Share Posted April 22, 2021 Quote Link to comment Share on other sites More sharing options...
tater Posted April 22, 2021 Share Posted April 22, 2021 Nice overview of the pad layout, as well as the new GSE tanks. Quote Link to comment Share on other sites More sharing options...
Vanamonde Posted April 22, 2021 Share Posted April 22, 2021 If somebody is really bugging you that much, don't read his/her posts or set that forum member to ignore. This saves you the time, effort, and aggravation of writing angry replies to that person's posts. Doesn't that sound more pleasant than growling at each other? Quote Link to comment Share on other sites More sharing options...
mikegarrison Posted April 22, 2021 Share Posted April 22, 2021 7 hours ago, RCgothic said: 1) Re-entry vehicles don't need lift. 2) In any case, cylinders have lift and fins have lift. 1) Is not true except for weapons, where deceleration loading is not really a factor. Otherwise, even capsule-type re-entry vehicles need the ability to control their lift in order to maintain the desired deceleration. Not too much, but not too little. 2) Body lift is indeed a real thing. Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted April 22, 2021 Share Posted April 22, 2021 5 hours ago, .50calBMG said: Wow Quote Link to comment Share on other sites More sharing options...
RCgothic Posted April 22, 2021 Share Posted April 22, 2021 (edited) Vostok and Voskhod didn't have any lift. Therefore also true for re-entry capsules. The desirability of a ballistic entry is, of course, arguable. The necessity is not. Edited April 22, 2021 by RCgothic Quote Link to comment Share on other sites More sharing options...
mikegarrison Posted April 22, 2021 Share Posted April 22, 2021 (edited) 5 hours ago, RCgothic said: It's a tension member construction, so it's definitely for applying external loads. Aero simulator is my guess. But I don't see any actuators. https://en.wikipedia.org/wiki/Iron_bird_(aviation) Usually they have pretty obvious actuators to apply loads. They generally are used for accelerated high-cycle fatigue testing. 1 hour ago, RCgothic said: Vostok and Voskhod didn't have any lift. Therefore also true for re-entry capsules. The desirability of a ballistic entry is, of course, arguable. The necessity is not. And they stopped using that design, didn't they? Edited April 22, 2021 by mikegarrison Quote Link to comment Share on other sites More sharing options...
tater Posted April 22, 2021 Share Posted April 22, 2021 (edited) 20 minutes ago, mikegarrison said: But I don't see any actuators. Apparently a hydraulic ram was lowered inside it before they capped it (was visible in some pics on NSF). Someone actually figured out what specific one it was, and it can pull or push I guess. They are not messing around WRT orbital launch facility. Looks like they are prefabricating "levels" of the tower structure: Edited April 22, 2021 by tater Quote Link to comment Share on other sites More sharing options...
RCgothic Posted April 22, 2021 Share Posted April 22, 2021 The tower's coming along very quickly. Quote Link to comment Share on other sites More sharing options...
tater Posted April 22, 2021 Share Posted April 22, 2021 3 minutes ago, RCgothic said: The tower's coming along very quickly. Gonna need to if they want to stack a SS/SH this summer. Quote Link to comment Share on other sites More sharing options...
tater Posted April 22, 2021 Share Posted April 22, 2021 (edited) Long Crew-2 coverage starts in 9 hours: Launch 5:49 a.m. EDT (0949 GMT) Friday Edited April 23, 2021 by tater Quote Link to comment Share on other sites More sharing options...
RCgothic Posted April 22, 2021 Share Posted April 22, 2021 Tweet deleted. But yeah, thought so. Quote Link to comment Share on other sites More sharing options...
tater Posted April 22, 2021 Share Posted April 22, 2021 Quote Link to comment Share on other sites More sharing options...
tater Posted April 23, 2021 Share Posted April 23, 2021 There was apparently some test this afternoon with SN15 venting. Quote Link to comment Share on other sites More sharing options...
Max von Kerman Posted April 23, 2021 Share Posted April 23, 2021 Excited about Crew 2 launch in 5 hours and since its friday i dont have school after 12:00 yay Quote Link to comment Share on other sites More sharing options...
tater Posted April 23, 2021 Share Posted April 23, 2021 28 minutes ago, Max von Kerman said: Excited about Crew 2 launch in 5 hours and since its friday i dont have school after 12:00 yay More like 11 hours. The coverage starts early since they have all kinds of suiting up, drive to the pad, etc. Takes forever. Launch is at 0949 GMT. Quote Link to comment Share on other sites More sharing options...
Max von Kerman Posted April 23, 2021 Share Posted April 23, 2021 oh yea they said that stream starts 3 hours before launch Quote Link to comment Share on other sites More sharing options...
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