Timeline for Minimum velocity required to "skip" a spacecraft across the atmosphere?
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| S Feb 27, 2023 at 18:14 | history | suggested | Golden_Hawk | CC BY-SA 4.0 |
Improved formatting
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| Feb 27, 2023 at 17:33 | review | Suggested edits | |||
| S Feb 27, 2023 at 18:14 | |||||
| Sep 17, 2016 at 3:28 | history | tweeted | twitter.com/StackPhysics/status/776986206815019008 | ||
| Sep 15, 2016 at 17:16 | comment | added | user108787 | @MikeDunlavey Wikipedia says, FWIW it was to climb to 145 km , travelling at 5,000 km/h. It would then gradually descend into the stratosphere, where the increasing density generated lift against the flat underside of the aircraft, eventually causing it to bounce and gain altitude again, the pattern would be repeated. Due to drag, each bounce would be shallower than last. I take your point 100%, and I don't want to take up your time , this is what I should have written instead, going up rather than coming down (if it works in 1st place) en.wikipedia.org/wiki/Silbervogel | |
| Sep 15, 2016 at 15:25 | comment | added | Mike Dunlavey | When Apollo returned from the moon, it was traveling at about escape velocity, which was much higher than orbital velocity. The danger was if they "skipped" they would only slow down below escape velocity, and thus go into orbit (with no way to get down). So they had to pick an angle between a) skipping, and b) smashing into the lower atmosphere. Any skip slows it down, so no skip with lengthen a suborbital flight. | |
| Sep 15, 2016 at 13:31 | comment | added | user108787 | @DirkBruere thank you very much, it's not nice thinking of the same idea that that bunch came up with 70 years ago, though.....but swords to ploughshares . I am sure Branson has thought of it though. | |
| Sep 15, 2016 at 13:10 | comment | added | user56903 | en.wikipedia.org/wiki/Silbervogel | |
| Sep 15, 2016 at 12:52 | history | asked | user108787 | CC BY-SA 3.0 |