Timeline for Why are the rocket exhausts so different from rocket to rocket?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 22, 2023 at 6:04 | vote | accept | John Snow | ||
| Oct 21, 2023 at 17:52 | answer | added | RC_23 | timeline score: 1 | |
| Oct 21, 2023 at 9:35 | comment | added | Phil Sweet | Exhaust temp, mostly. Once you are in deep space, you can have very cold stable hypergolic fuels. On the lander for the little asteroid, the exhaust temp was something like -200C, so no glow. Obviously, any heat in the exhaust is wasted energy that could have been used to get a higher impulse. The best mass driver is hydrogen, and it doesn't have much of a glow. But first stage rockets tend to use less hydrogen proportionately. There is some discussion of this over on Space Stack. | |
| Oct 21, 2023 at 7:35 | comment | added | AJN | Some similar questions from another SE 1, 2. | |
| Oct 21, 2023 at 7:31 | comment | added | John Snow | @SolarMike I didn't research as it was just a general curiosity. I think the exhaust where there isn't much to be seen would be hydrogen based, right? The output is just water/steam? | |
| Oct 21, 2023 at 7:03 | comment | added | Solar Mike | Did you research different fuels? what about the power output needed affecting the design? | |
| Oct 21, 2023 at 6:54 | history | asked | John Snow | CC BY-SA 4.0 |