[HN Gopher] First images of Spaceship Neptune's capsule structure
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First images of Spaceship Neptune's capsule structure
Author : belter
Score : 18 points
Date : 2023-12-23 18:54 UTC (4 hours ago)
(HTM) web link (latteluxurynews.com)
(TXT) w3m dump (latteluxurynews.com)
| petarb wrote:
| This looks awesome. Going up shouldn't be too bad; but the decent
| is the part that scares me. Wouldn't it reenter orbit with
| extreme velocity?
| wrs wrote:
| Orbit? It's a balloon gondola.
| imglorp wrote:
| It will have about zero horizontal velocity, or whatever
| ambient wind speed. For orbit, it would need 21000 kph.
| pc86 wrote:
| Average windspeed at 30km altitude looks to be about 15 m/s
| which is certainly not nothing especially compared to average
| surface speeds.
|
| https://www.researchgate.net/figure/Average-wind-speeds-
| in-m...
| dotancohen wrote:
| The fine article states that this "spacecraft" is to launch under
| a "SpaceBalloon". There is no mention of altitude. I am sceptical
| about a launch system whose name implies that it relies on
| buoyancy to be able to rise into the vacuum.
| belter wrote:
| https://spaceperspective.com/spaceship
| dotancohen wrote:
| Still no mention of altitude on that page so far as I could
| see.
| moffkalast wrote:
| Likely around 40 km, like the Baumgartner jump.
| belter wrote:
| It is in the FAQ. - https://spaceperspective.com/faq
|
| "How long is the flight?"
|
| The flight will last approximately six hours, from launch
| to landing. Spaceship Neptune will ascend for two hours,
| float at its apogee of 100,000 ft (30 km) for two hours,
| and descend gently over two more hours before splashdown in
| the ocean where a ship awaits."
| dotancohen wrote:
| Thank you. So it is a spaceship in the sense that it is a
| ship with space inside. It just happens to get to 30% of
| the altitude of space.
| tempodox wrote:
| Knowing that the name "spaceship" is 100% hyperbole brings
| things into perspective.
| irrational wrote:
| I hadn't heard about this before and was confused about why I
| hadn't heard about plans to send a spacecraft to Neptune.
| samstave wrote:
| I thought so as well, then I saw the sphere and thought "oh -
| they are sending it to the bottom of the ocean, hence
| Neptune..." and now its a frickin balloon!?
|
| _/ grabs trident_
| TaylorAlexander wrote:
| Honestly compared to other space tourism outfits this one seems
| pretty reasonable. No flashy new tech, no intense reentry. We
| have sent vehicles and even people up on high altitude balloon
| rides before. I am quite sure it would be too expensive for me
| and I don't care for dangerous experimental tech, but otherwise
| it seems like something I would enjoy.
| FileSorter wrote:
| >Spaceship Neptune was developed to be the most accessible, most
| sustainable, and safest spacecraft on or above our planet.
|
| I was very dubious about the sustainable part since I assumed
| they would be using helium, but it looks like they are using
| renewable hydrogen.
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