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/sci/ - Science & Math


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9928490 No.9928490 [Reply] [Original]

Hi /sci/.

I've been wondering about something lately, how fast will the Dragon 2 and CST-100 capsules reach the ISS? The Soyuz capsule reaches it in 6 hours and the latest Progress cargo capsule reached it in 3 hours and 40 minutes.

Previously, it took up to 2 full DAYS with the Soyuz and the Progress but what about the Dragon 2 and CST-100?

>> No.9928553

>>9928490
>how fast will the Dragon 2
it won't since SpaceX is going to go out of business in 2ish years, shortly after Tesla

>> No.9928560
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>>9928553

Why would SpaceX go bankrupt in a couple of years?

>> No.9928570

>>9928553
t. butthurt Tesla-shorter down 6.6 billion dollars since 2016

>> No.9928982

>>9928553
awwww, poor little guy. you're going to be so disappointed.

>> No.9929027

>>9928490
Dragon 2 will also take two full days. Dunno about CST100

>> No.9929351
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9929351

>>9928490
Can I just take a moment to say what a neat little spacecraft the Soyuz has become? Imagine if the US had continued developing the Apollo or Gemini spacecraft instead of fucking away several decades on the STS dead-end

>> No.9929383

>>9928490
Sure the Dragon 2 and CST-100 could theoretically make the express trip to the ISS, but only if they were launched from Baikonour Cosmodrome which is highly unlikely. The only reason Soyuz can reach the ISS so quickly is because of the inclination of the ISS's orbit. The ISS maintains a relatively high orbital inclination of 51.64 degrees, this is specifically so Russian spacecraft can reach it from the Baikonur cosmodrome, which also has a high inclination of 46 degrees. Because the ISS's inclination is so close to Baikonour's, the Soyuz and Progress can take a relatively simple and direct trajectory to the ISS which significantly cuts the journey time. However this is unfortunately impossible for American spacecraft visiting the station, as Cape Canaveral's inclination is much lower at 28.5 degrees, which means American spacecraft have to perform many more inclination change burns than their Russian counterparts to change their inclination to fit the ISS's orbit, and this takes time (2 days of time).

>> No.9929385

>>9929351
Gemini was the most kino and comfy capsule, I'm sad it was only used 12 times.

>> No.9929442

>>9929351
Soyuz is that ride or die nigga that you dont tell your family about but when shit gets fucky, he right there with you.

>> No.9929629

>>9929383
No dumbass, they wait for the instantaneous lunch window when the orbit of the ISS crosses over the launch site at the Cape then burn directly onto the correct inclination. They don't need to do any plane changes.
Soyuz has done very fast ISS approaches before, but the majority of the time they take several days in orbit to catch up to it. Dragon takes several days right now because there's no time crunch since there aren't any people on board. Dragon 2 and Boeing will both be able to do fast approach and docking on the order of a few hours between launch and rendezvous just like Soyuz can.

>> No.9929941

>>9929385
>most kino
Prolly

>and comfy

Ha, no. Design parameters had lots of input from Grissom, an unusually short astronaut. It was WAY too tight for non manlets -- almost lost Ed White trying to wedge his ass back inside.

>> No.9929943
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Posting some capsule porn.

>> No.9929946
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>> No.9929949
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>> No.9929955
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>> No.9929958
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>> No.9931169
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