Hmm...

Hmm...

Hmm...

More Posts from Cozy-airlessness and Others

4 years ago

biggest betrayal is when it’s supposed to thunderstorm and it doesn’t

5 years ago

Artemis is ace I think, and ace counts as not straight, and not straight = gay. This checks out.

[radio voice] this is apollo 11 to houston, the moon is gay. i repeat the moon is gay.

[people cheering in the background]

5 years ago
Train 🌟

Train 🌟

Twitter | Instagram | Deviantart

5 years ago
SCP-268-FR - “Dix-Mille Lucioles”

SCP-268-FR - “Dix-Mille Lucioles”

1 year ago
BOBBIE DRAPER In The Expanse Season 6 Episode 6 “Babylon’s Ashes”
BOBBIE DRAPER In The Expanse Season 6 Episode 6 “Babylon’s Ashes”
BOBBIE DRAPER In The Expanse Season 6 Episode 6 “Babylon’s Ashes”
BOBBIE DRAPER In The Expanse Season 6 Episode 6 “Babylon’s Ashes”

BOBBIE DRAPER in The Expanse Season 6 Episode 6 “Babylon’s Ashes”

5 years ago

Space history

It’s a hobby of mine to listen to and watch archives from the Apollo era.

There’s many places where you can just browse transcripts and video archives, but I’d recommend https://apolloinrealtime.org/11/ and https://apollo17.org.

Watching some of the videos from that time is eerie, because these people are so distant and isolated on this dark surface, illuminated by an inclined sun.

1 year ago

1989: ‘Shuttle Evolution “Block II”’

1989: ‘Shuttle Evolution “Block II”’

(sorry for low resolution, I cannot find a higher-res version anywhere)

1989: A concept drawing for a never-realised next-generation Space Shuttle, capable of carrying 8 astronauts and possibly over 30 tonnes to low-Earth orbit. The most noteworthy feature is the detachable cockpit with engines which could serve as a launch escape-system or a lifeboat during an incident in-orbit. It was to use its lifting body, wings, and body flap to glide to a runway and presumably land on skids. The escape system would enable a crew's escape at any point during launch or orbital flight.

Comments and observations

The inclusion of this escape-system in the orbiter would necessitate a gap in the heatshield at the nose, one of the hottest parts of the vehicle during re-entry. That's obviously a big problem. Further, a pad-abort would seem to be very impractical. 3 seconds at 8 Gs would only send the capsule about 2 km high, probably not high enough to glide towards the nearest runway, especially with those stubby wings. Perhaps an emergency parachute system and a splashdown of the capsule would have been more sensible?

Other changes to the orbiter seem to be in the interest of improving gliding performance, such as two wing-tip vertical stabilisers instead of one tail-mounted one (to eliminate wing-tip vortices), shrinkage of the orbital manœuvring system pods by relocation of the OMS's propellant-tanks into the wings, and the addition of canards which would probably yield greater pitch-authority during landing.

The system also proposes replacement of the solid rocket boosters with liquid-hydrogen–fuelled boosters. These could provide a greater payload capacity, as well as greater control of thrust during ascent, and the possibility of an emergency engine shutdown, improving the crew's safety. The biggest and most obvious downside would be increased cost. The drawing doesn't specify whether the LFBs are intended to recover themselves by deploying parachutes, but what's certain is that saltwater generally damages delicate chemical rocket engines, so they probably couldn't just plop into the ocean like the real Shuttle's SRBs did.


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5 years ago
Apollo 17 Ascent Stage Returning To Moon Orbit.

Apollo 17 ascent stage returning to moon orbit.

5 years ago

The circumference of the moon’s orbit is 2,412,743km :/

Yeah! Even For That Diameter You Suck !

Yeah! Even for that diameter you suck !

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cozy-airlessness - Cozy airlessness
Cozy airlessness

21 · female · diagnosed asperger'sThe vacuum of outer space feels so comfy :)

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