sevenperforce Posted April 17, 2023 Share Posted April 17, 2023 On 4/17/2023 at 1:18 PM, RCgothic said: Minimum of 48h to recycle. Expand Sad that it won't be tomorrow, but at least that means I'll be at home again Wednesday for the next attempt. Quote Link to comment Share on other sites More sharing options...
Minmus Taster Posted April 17, 2023 Share Posted April 17, 2023 Weather looks...suboptimal for the next week at least Quote Link to comment Share on other sites More sharing options...
RCgothic Posted April 17, 2023 Share Posted April 17, 2023 Holding and abort at 40s. Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted April 17, 2023 Share Posted April 17, 2023 John notes that they begin lighting the engines over a six-second period rather than the ~2 seconds for Falcon 9. Quote Link to comment Share on other sites More sharing options...
Minmus Taster Posted April 17, 2023 Share Posted April 17, 2023 The only real disappointment from this is that it will probably launch on a cloudy day and explode out of view SN11 style Quote Link to comment Share on other sites More sharing options...
tater Posted April 17, 2023 Share Posted April 17, 2023 Quote Link to comment Share on other sites More sharing options...
RCgothic Posted April 17, 2023 Share Posted April 17, 2023 Until the vehicle is unloaded there could still be an earth shattering kaboom... but probably not. Quote Link to comment Share on other sites More sharing options...
sevenperforce Posted April 17, 2023 Share Posted April 17, 2023 On 4/17/2023 at 1:26 PM, RCgothic said: Until the vehicle is unloaded there could still be an earth shattering kaboom... but probably not. Expand I wouldn't terribly mind seeing a kaboom -- anything past liftoff is a success -- but I'd prefer having it happen at T+ something rather than T- something. Quote Link to comment Share on other sites More sharing options...
Minmus Taster Posted April 17, 2023 Share Posted April 17, 2023 Well at least the launch is now always two days away instead of two months. Quote Link to comment Share on other sites More sharing options...
steve9728 Posted April 17, 2023 Share Posted April 17, 2023 On 4/17/2023 at 1:31 PM, Minmus Taster said: Well at least the launch is now always two days away instead of two months. Expand Don't so that familiar on Space X but... Have to say, although I place my bet on failure because "other reason", but the rest of 49% of my mind is hoping Starship can fully success On 4/17/2023 at 8:09 AM, steve9728 said: Sorry Musk, I'm the 3.2% Expand Another guessing by same guy: what you think about can Starship launch tonight (the time zone in China the live was started around 20:35)? Left is delay and right is launch. I was missed this guess. I think somewhere on this world should have a bookie that running some kind betting like that. Quote Link to comment Share on other sites More sharing options...
magnemoe Posted April 17, 2023 Share Posted April 17, 2023 On 4/16/2023 at 10:50 PM, Meecrob said: Also, GPS is a signal that can be lost or jammed. IGU is self contained. I think I am missing something here...but it seems to me (obviously I'm NOT a rocket scientist) that GPS is a dead end for space. What do you do between the GPS of Earth and the GPS of the Moon or Mars or any other destination in the solar system that we hypothetically set up a GPS around? Have a "Milky-Way Positioning System" out by the Oort cloud? Expand I'm sure GPS works in lower orbits however and it would be very useful as its hard to get your position in space. The standard way is to use multiple ground stations and get direction and distance but that is not practical for swarms like starlink. Note that you need the military gps for this standard one stop working if you go much faster or higher than passenger planes, think 1500 km/h. Quote Link to comment Share on other sites More sharing options...
AtomicTech Posted April 17, 2023 Share Posted April 17, 2023 When do y'all reckon we'll see the launch? My bet is Friday. Quote Link to comment Share on other sites More sharing options...
AVaughan Posted April 17, 2023 Share Posted April 17, 2023 Just watching the livestream now. One quick takeaway. https://youtu.be/L5QXreqOrTA?t=953 Quote For todays test starship does not have its landing legs attached Expand So looks like it is still possible that some early starships might still get landing legs, rather than SpaceX attempting to catch them. (Worth mentioning that 30 seconds earlier he was talking about landing on the Moon/Mars, and so maybe he was referring to Lunar/Martian versions). Quote Link to comment Share on other sites More sharing options...
steve9728 Posted April 17, 2023 Share Posted April 17, 2023 On 4/17/2023 at 4:08 PM, AtomicTech said: When do y'all reckon we'll see the launch? My bet is Friday. Expand I think within this two weeks at most...ish? Quote Link to comment Share on other sites More sharing options...
tater Posted April 17, 2023 Share Posted April 17, 2023 Quote Link to comment Share on other sites More sharing options...
magnemoe Posted April 17, 2023 Share Posted April 17, 2023 On 4/17/2023 at 1:21 PM, sevenperforce said: John notes that they begin lighting the engines over a six-second period rather than the ~2 seconds for Falcon 9. Expand Pretty sure that is for first launch, although raptor is more complex. On the other hand laugh at B 52 engine out capability. At large air force exercises requesting priority landing with an engine out on a B-52 seen as is cutting ahead in queue. The dramatic 7 engines emergency landings as an F 16 pilot said. Quote Link to comment Share on other sites More sharing options...
Kerballlistic07 Posted April 17, 2023 Share Posted April 17, 2023 On 4/17/2023 at 1:31 PM, Minmus Taster said: Well at least the launch is now always two days away instead of two months. Expand Don't you dare curse it. It could very well happen! On 4/17/2023 at 1:23 PM, Minmus Taster said: The only real disappointment from this is that it will probably launch on a cloudy day and explode out of view SN11 style Expand NOOOOOOO Quote Link to comment Share on other sites More sharing options...
Meecrob Posted April 17, 2023 Share Posted April 17, 2023 On 4/17/2023 at 3:56 PM, magnemoe said: I'm sure GPS works in lower orbits however and it would be very useful as its hard to get your position in space. The standard way is to use multiple ground stations and get direction and distance but that is not practical for swarms like starlink. Note that you need the military gps for this standard one stop working if you go much faster or higher than passenger planes, think 1500 km/h. Expand I mean how do you navigate between GPS constellations? With regards to Starship, my first thought was "Wow, Elon really wants to launch on 4/20." I really hope not, because I don't think I can handle the onslaught of "Yo, dudes! I was so high while I watched that rocket go so high" comments. Quote Link to comment Share on other sites More sharing options...
BeastHunter Posted April 17, 2023 Share Posted April 17, 2023 On 4/17/2023 at 5:02 PM, Meecrob said: With regards to Starship, my first thought was "Wow, Elon really wants to launch on 4/20." I really hope not, because I don't think I can handle the onslaught of "Yo, dudes! I was so high while I watched that rocket go so high" comments. Expand That would suck, but the more pressing problem to the self-centered part of me is that I’d miss the launch. Quote Link to comment Share on other sites More sharing options...
AVaughan Posted April 17, 2023 Share Posted April 17, 2023 On 4/16/2023 at 10:50 PM, Meecrob said: What do you do between the GPS of Earth and the GPS of the Moon or Mars or any other destination in the solar system that we hypothetically set up a GPS around? Have a "Milky-Way Positioning System" out by the Oort cloud? Expand Assuming you have a decent clock and decent optics, then measuring the position of the Earth/Moon/Venus/Mars/Jupiter/Saturn against the stars should be enough to triangulate your position. (You can also cross-check and calibrate your IGU's orientation against the stars the same way). Quote Link to comment Share on other sites More sharing options...
Meecrob Posted April 17, 2023 Share Posted April 17, 2023 On 4/17/2023 at 5:06 PM, AVaughan said: Assuming you have a decent clock and decent optics, then measuring the position of the Earth/Moon/Venus/Mars/Jupiter/Saturn against the stars should be enough to triangulate your position. (You can also cross-check and calibrate your IGU's orientation against the stars the same way). Expand Thank you; what you just stated is exactly what I'm getting at. It seems to me that the stars are like a natural analogue GPS that we don't have to launch satellites to utilize. Quote Link to comment Share on other sites More sharing options...
AVaughan Posted April 17, 2023 Share Posted April 17, 2023 On 4/17/2023 at 4:45 PM, magnemoe said: Pretty sure that is for first launch, although raptor is more complex. On the other hand laugh at B 52 engine out capability. At large air force exercises requesting priority landing with an engine out on a B-52 seen as is cutting ahead in queue. The dramatic 7 engines emergency landings as an F 16 pilot said. Expand If an engine has failed for an unknown reason, all the other engines on the same aircraft might also be susceptible to the same issue. (What if the cause is fuel contamination, or something else that is common to all the engines on the same plane). Quote Link to comment Share on other sites More sharing options...
CatastrophicFailure Posted April 17, 2023 Share Posted April 17, 2023 On 4/17/2023 at 2:14 PM, steve9728 said: Have to say, although I place my bet on failure because "other reason", but the rest of 49% of my mind is hoping Starship can fully success Expand What other reason? Quote Link to comment Share on other sites More sharing options...
steve9728 Posted April 17, 2023 Share Posted April 17, 2023 (edited) On 4/17/2023 at 5:17 PM, CatastrophicFailure said: What other reason? Expand The original "betting" slot of "other" from that guy literally translate is "other, such as scrapped before launch." At very first moment I think is it highly likely to be delayed. So, I choose other. But think it back, it's guessing how this rocket ended up, and the delay merely delayed the end. My own guess now is that it might be due to low temperature fuel and pressure issues to make "other" comes real. Edited April 17, 2023 by steve9728 Quote Link to comment Share on other sites More sharing options...
Elthy Posted April 17, 2023 Share Posted April 17, 2023 Did SpaceX say anything about the "payload" of this starship? I think flying it empty could mess up the launch profile, as the acceleration would be way higher and they end up with lots of extra fuel, which would mess up the reentry... Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.