Vostok Build

[friznit]

In reality the Blok-A core stage tapers out from 2.15m at the base to 2.95m at its widest point then tapers back slightly to 2.66m. The equivalent scales in KSP are 1.34 > 1.84 > 1.66. Rounded to the nearest regular KSP sizes, that's roughly 1.25 > 1.875 > 1.5.

However, the default Tantares size for Vostok and Blok-E upper stage is 1.25. The rocket looks a little strange when tapered that much. A different approach is to put the whole upper stage and capsule in a fairing.

Alternatively, there is an optional rescale patch in GameData\TantaresLV\Patches\Soyuz_B9_Rescale (enabled by renaming .disabled to .cfg; note that B9 Partswitch and Module Manager are required). This adds switches to adjust the diameter to 1.5m at the top. There is a thrust plate, decoupler and RD-110A engine in the same size to match.

• Size 1 is the standard, unmodified Tantares variant and while it fits the Vostok Blok-E upper stage and crew capsule, it tapers in more than in real life.
• The optional 1.5m diameter is closest to real life proportions. It's the same diameter as the Soyuz capsules, so they need to sit inside a tapered fairing. Vostok capsule would need to be Tweakscaled up to fit.
• Size 1.5 (1.875m diameter) is the standard, unmodified Tantares size for Soyuz rockets and Blok-I upper stage.

[friznit]