# Continuing discussion of SpaceX launches \[edited title\] **URL:** \ **Category:** Miscellaneous and Personal Stuff I Must Share\ **Created:** [December 22, 2015, 12:37am UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048 "2015-12-22T00:37:01Z")\ **Posts on this page:** 20\ **Page:** 49
**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\ **Post date:** [March 7, 2020, 5:25am UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/961 "2020-03-07T05:25:51Z")
The landing seemed to be as smooth and well-centered as any they’ve ever done. Either the winds died down or their control systems are extremely robust. Pretty nice historic moment: 50th successful booster landing, and last launch of a Dragon 1. Future missions will use Crew Dragon. Looking forward to hearing **Alex** ’s report on the launch. I’ve seen a few launches from Vandenberg but I’d really like to see one at Cape Canaveral one day. ---
**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\ **Post date:** [May 12, 2020, 11:01pm UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/962 "2020-05-12T23:01:53Z")
[A cute online docking simulator by SpaceX](https://iss-sim.spacex.com/) Not too much of a challenge for Kerbal Space Program players. For others, maybe not so much! BTW: Turn 180 degrees at the start for an Easter Egg ---
**Author:** ![Elendil\_s\_Heir](https://avatars.discourse-cdn.com/v4/letter/e/7cd45c/32.png) [@Elendil\_s\_Heir](https://boards.straightdope.com/u/Elendil_s_Heir)\ **Post date:** [August 10, 2020, 1:33pm UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/963 "2020-08-10T13:33:41Z")
How SpaceX and NASA overcame a bitter culture clash to bring back US astronaut launches: [How SpaceX and NASA overcame a bitter culture clash to bring back US astronaut launches | CNN Business](https://www.cnn.com/2020/08/09/business/spacex-nasa-astronaut-launch-demo-2-culture-clash-scn/index.html) ---
**Author:** ![N9IWP](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/n9iwp/32/3154_2.png) [@N9IWP](https://boards.straightdope.com/u/N9IWP)\ **Post date:** [September 3, 2020, 6:13pm UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/964 "2020-09-03T18:13:05Z")
SN6 did a successful hop today – watched on youtube live, didn’t find a replay link yet (or really any good links) Brian ---
**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\ **Post date:** [September 5, 2020, 10:13pm UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/965 "2020-09-05T22:13:46Z")
Didn’t see this post due to the new notification system. The SN5 and SN6 hops were a lot of fun to watch. They say they’ll probably do a few more hops like this, working out the various kinks in their ground support systems and processes. The vehicles obviously work, and from what the livestreamers said, SN6 seemed to go more smoothly than SN5 (fewer false starts, etc.). The 20 km hop is the next big milestone. That will require a vehicle with the flaperons or whatever they’re calling the big fins. Probably SN8. They’re shooting for October IIRC. The first Raptor Vacuum engine is complete, and it’s a beast: [![](https://pbs.twimg.com/media/EhHDuH7VoAAZtaw.jpg) ](https://pbs.twimg.com/media/EhHDuH7VoAAZtaw.jpg) The engine part itself is the same, but the vacuum version has a hugely extended nozzle. And unlike the Merlin Vacuum, it’s actively cooled rather than radiatively. This is probably partly due to the higher performance, and partly because the engines will be contained inside the rear part of Starship, and there would be nowhere for the heat to radiate to. In other news, they just had their 12th Starlink flight and are planning two more this month. They’re up to around 700 satellites now. ---
**Author:** ![Snowboarder\_Bo](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/snowboarder_bo/32/229_2.png) [@Snowboarder\_Bo](https://boards.straightdope.com/u/Snowboarder_Bo)\ **Post date:** [November 13, 2020, 9:03pm UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/966 "2020-11-13T21:03:44Z")
> **[SpaceX crew flight delayed; Musk gets mixed COVID-19 results](https://apnews.com/article/us-news-spacex-jim-bridenstine-elon-musk-coronavirus-pandemic-8e1826aed3665fd74455d024d0ce8755)** > > CAPE CANAVERAL, Fla. (AP) — SpaceX delayed its second astronaut flight by a day because of high wind and weather conditions that could jeopardize the recovery and recycling of the rocket booster, pushing the launch to Sunday... ---
**Author:** ![Snowboarder\_Bo](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/snowboarder_bo/32/229_2.png) [@Snowboarder\_Bo](https://boards.straightdope.com/u/Snowboarder_Bo)\ **Post date:** [November 16, 2020, 2:36am UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/967 "2020-11-16T02:36:07Z")
Today’s crew: > **[SpaceX flying ex-football players, flight controller, Scout](https://apnews.com/article/college-football-japan-football-ecf93e858c4417d0eeb0035f2cce6373)** > > CAPE CANAVERAL, Fla. (AP) — SpaceX’s second crew has two military officers who played college football, a former space shuttle flight controller, and the first person in decades to launch aboard three kinds of rocketships. The launch went well: > **[SpaceX launches 2nd crew, regular station crew flights begin](https://apnews.com/article/coronavirus-pandemic-elon-musk-weather-spacex-michael-pence-2c0fc4d264b46278aab40cff11178959)** > > CAPE CANAVERAL, Fla. (AP) — SpaceX launched four astronauts to the International Space Station on Sunday on the first full-fledged taxi flight for NASA by a private company... ---
**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\ **Post date:** [November 16, 2020, 3:00am UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/968 "2020-11-16T03:00:59Z")
Yep, it seemed to be a very smooth launch. It takes them about a day to get there, and I think they said they’re sleeping at the moment. Interestingly, they mentioned that this was the first flight to be FAA certified for passenger use. I don’t know the details there but it sure sounds like this is the first step toward ordinary commercial flights. It really is a much more comfortable ride than Soyuz: [![](https://cdn.cnn.com/cnnnext/dam/assets/200930184556-nasa-spacex-crew-1-mission-exlarge-169.jpg) ](https://cdn.cnn.com/cnnnext/dam/assets/200930184556-nasa-spacex-crew-1-mission-exlarge-169.jpg) [![](https://spaceflightnow.com/station/exp25/101007preview/soyuzcrew.jpg) ](https://spaceflightnow.com/station/exp25/101007preview/soyuzcrew.jpg) ---
**Author:** ![Snowboarder\_Bo](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/snowboarder_bo/32/229_2.png) [@Snowboarder\_Bo](https://boards.straightdope.com/u/Snowboarder_Bo)\ **Post date:** [November 16, 2020, 3:12am UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/969 "2020-11-16T03:12:22Z")
Great pics! Thanks for posting them! And yeah, as one of my links said: > [@](#): > > SpaceX launched four astronauts to the International Space Station on Sunday on the first full-fledged taxi flight for NASA by a private company. ---
**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\ **Post date:** [November 16, 2020, 3:27am UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/970 "2020-11-16T03:27:25Z")
> [@Snowboarder\_Bo](#): > > SpaceX launched four astronauts to the International Space Station on Sunday on the first full-fledged taxi flight for NASA by a private company. It’s not just that, though–this is apparently a brand-new certification process for the FAA, and not one that they’d necessarily undertake if they were just providing seats to NASA. NASA is the customer in this scenario, but there will be others. > **[NASA certifies SpaceX's Crew Dragon for astronaut flights, gives 'go' for...](https://www.space.com/nasa-certifies-spacex-crew-1-astronaut-mission-go-for-launch)** > > SpaceX's next astronaut flight for NASA is "go" for launch this weekend. The company has been certified for regular flights to and from the International Space Station. > Crew-1 will not only be the first mission to launch astronauts on a NASA-certified, commercial spacecraft; it’s also the first time the Federal Aviation Administration (FAA) has issued a launch license for a crewed space mission. > > “So we in the FAA look forward to this historic event,” Randy Repcheck, the FAA’s acting director of operational safety, said in the news conference. “We’ve licensed suborbital launches with flight crew, but not not orbital launches, and certainly none with NASA.” Presumably, previous flights were under some sort of experimental license or special NASA exemption. ---
**Author:** ![Snowboarder\_Bo](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/snowboarder_bo/32/229_2.png) [@Snowboarder\_Bo](https://boards.straightdope.com/u/Snowboarder_Bo)\ **Post date:** [November 16, 2020, 4:33am UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/971 "2020-11-16T04:33:15Z")
Aye: Spacex is now licensed to take passengers off-planet; they are “for hire”. ---
**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\ **Post date:** [November 16, 2020, 4:49am UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/972 "2020-11-16T04:49:25Z")
So far, there seem to have been two minor issues: - One was a “pressure spike” in one of the thermal control loops. During the press conference it was said that this was just a transient startup glitch, and in any case they have a backup loop. When they restarted the “alpha” loop it was fine. So maybe they just need to tweak some thresholds. - There’s an ongoing issue with the propellant tank heaters. Doesn’t sound like an immediate issue to me and the propellant is warm enough for the time being, but they’re continuing to diagnose it. So, not quite a _perfect_ flight so far, but certainly nothing serious as of yet. ---
**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\ **Post date:** [November 16, 2020, 6:47am UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/973 "2020-11-16T06:47:19Z")
Just heard that the issue with the propellant heaters (actually line heaters, not tank heaters) has been resolved. Similar to the first issue, the limits on them (not sure of the measurement in question) were set a bit too conservatively and they triggered the limit. They set it to a more realistic value, rebooted the system, and all is good now. ---
**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\ **Post date:** [November 17, 2020, 3:51am UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/974 "2020-11-17T03:51:28Z")
They’re getting very close to the docking: [![](https://img.youtube.com/vi/3hK540tMmvw/maxresdefault.jpg "Crew-1 Mission | Rendezvous and Docking") ](https://www.youtube.com/watch?v=3hK540tMmvw) Some pretty nice views of both the Dragon capsule and the ISS. At the moment, they’re waiting a few minutes for the sun to set (a quick thing when a “day” lasts 90 minutes), but aside from that they’re go for dock. ---
**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\ **Post date:** [November 17, 2020, 4:16am UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/975 "2020-11-17T04:16:39Z")
And they’re docked! Now to equalize the pressure and pop the hatch. ---
**Author:** ![Snowboarder\_Bo](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/snowboarder_bo/32/229_2.png) [@Snowboarder\_Bo](https://boards.straightdope.com/u/Snowboarder_Bo)\ **Post date:** [November 17, 2020, 4:38am UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/976 "2020-11-17T04:38:39Z")
Man, I love watching people move in zero gee. ---
**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\ **Post date:** [November 17, 2020, 4:49am UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/977 "2020-11-17T04:49:15Z")
It does look like a lot of fun. I wish we had a really big station, though, where people could really zip around in a large space. I hope SpaceX sends up a big hab module at some point. Or even just leaves a Starship permanently docked. ---
**Author:** ![Elendil\_s\_Heir](https://avatars.discourse-cdn.com/v4/letter/e/7cd45c/32.png) [@Elendil\_s\_Heir](https://boards.straightdope.com/u/Elendil_s_Heir)\ **Post date:** [November 18, 2020, 4:13pm UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/978 "2020-11-18T16:13:14Z")
It’s no Skylab, that’s for sure. [![](https://img.youtube.com/vi/S_p7LiyOUx0/hqdefault.jpg "Classic NASA Film - Skylab - #4") ](https://www.youtube.com/watch?v=S_p7LiyOUx0) ---
**Author:** ![MEBuckner](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mebuckner/32/2896_2.png) [@MEBuckner](https://boards.straightdope.com/u/MEBuckner)\ **Post date:** [November 18, 2020, 5:03pm UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/979 "2020-11-18T17:03:40Z")
The ISS does have a music video to its credit, though: [![](https://img.youtube.com/vi/KaOC9danxNo/maxresdefault.jpg "Space Oddity") ](https://www.youtube.com/watch?v=KaOC9danxNo) ---
**Author:** ![Elendil\_s\_Heir](https://avatars.discourse-cdn.com/v4/letter/e/7cd45c/32.png) [@Elendil\_s\_Heir](https://boards.straightdope.com/u/Elendil_s_Heir)\ **Post date:** [November 18, 2020, 5:55pm UTC](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048/980 "2020-11-18T17:55:35Z")
Hadn’t seen that before - thanks! For more: [Space Oddity - Wikipedia](https://en.wikipedia.org/wiki/Space_Oddity#Chris_Hadfield_version) [Previous page](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048.md?page=48) [Next page](https://boards.straightdope.com/t/continuing-discussion-of-spacex-launches-edited-title/741048.md?page=50)