Military Soyuz

Soyuz family tree
Soyuz 7K-OK spacecraft with an active docking unit

The Soviet Union planned several military Soyuz spacecraft models. These versions were named Soyuz P, Soyuz PPK, Soyuz R, Soyuz 7K-VI, and Soyuz OIS (Orbital Research Station). However, none of the spacecraft ever flew in space.[1][2]

  1. ^ Cite error: The named reference auto1 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference auto5 was invoked but never defined (see the help page).