Kryten

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About Kryten

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    Flight Director
  1. Has anybody successfully fired a rocket engine with gel/liquid prop combination? Trying to do stuff that hasn't been done before doesn't seem sensible for an amateur effort.
  2. Arabsat-6A isn't your average payload either, it cost somewhere in the region of $300 million: about twice as much as Amos-6. There could be quite a kerfuffle should it end up in the Atlantic.
  3. They make shiny mockups, take money from rubes, and occasionally launch solid fireworks. A big liquid propellant rocket, even monoprop, is vastly outside their realm of expertise. EDIT: They just put up a post on facebook saying their stock price is likely to rise, but cannot fall regardless of the launch outcome. That's the kind of people we're dealing with. I'm not even sure they can legally say that, they certainly couldn't in this country.
  4. It fits with their prior track record. If they actually get anything to space I'll eat a hat.
  5. The Geneva convention only covers warfare. Tear gases are considered CW and banned in military contexts.
  6. Laser weapons for permanent blinding are banned. .
  7. What are you basing that on? There's a Blue presentation that calls the upper stages 'initially expendable'.
  8. Your average mirror is only about 90% efficient, and the reflective layer is fragile enough that the 10% not reflected is enough for it to stop being a mirror pretty quickly.
  9. The CDR assumed the methalox version. The kerolox is in dev, to an extent, but it's clearly getting nowhere near the resources of the methalox version. Hell, have ULA even released an official image of the kerolox version?
  10. And there's much more to get hit with nowadays than there was during most of the shuttle era.
  11. Regolith with particles below 1cm in size is referred to soil by planetary scientists (e.g. in this paper), similar to how anything heavier than helium is metal to an astronomer.
  12. The Apollo system put the ASTP crew in hospital, and could've easily done worse.
  13. Why would a large spaceship be any less maneuverable than a small one?
  14. Apollo couldn't access the interesting far side areas like the aitken basin, only areas which were basically the same as areas they could reach on the near side. There just wasn't a compelling reason to do it.
  15. It's just a matter of performance. Check the charts here; https://www.38north.org/2016/12/musudan122016/ NTO v. IRFNA gives you 200km extra range for a Musudan, effectively for free; the difference would be greatly exacerbated in a multi-stage design like this one. The chemical industry is one of the most advanced in the DPRK. Something like NTO or IRFNA is child's play to people who mass-produce VX.