OPS-4

OPS-4 is an unflown Soviet space station, expected to be a fourth in the secret Almaz military program. It remained grounded due to the cancellation of the program.[1]

Spacecraft

OPS-4 underwent several technical and design changes. The aft docking port was designed to receive heavier TKS spacecraft, compared to a lighter Soyuz-enabled docking port in the three previous stations.[1]

It was to be the first station launched with a three panel Mech-A Synthetic Aperture Radar and a manned reusable Return Vehicle VA. The VA was replaced by a second docking port, due to delays in preparing a crew-rated TKS; the front section was refitted with a Soyuz-enabled docking port to receive manned craft.[1]

OPS-4 was to carry an advanced Shchit-2 space-to-space cannon. It was reported to be a two projectile system armed with unguided missiles.[1]

gollark: I use Arch Linux, which is rolling release (there are no fixed versions of the distro, you just update your packages whenever they get updated), very flexible (you install it manually, choosing partition layout, DE, extra software, etc), and has the AUR, a giant collection of user-packaged software.
gollark: Plus different stuff for managing services.
gollark: Many of them have different sets of available packages and stuff, or different package managers, or different desktop environments (you can usually swap them, though).
gollark: There are quite significant differences between distros, actually.
gollark: But I don't think it's the most common or easy distro.

References
  1. "OPS-4". Russianspaceweb.com.


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