Instead it used differentiall throthling of outer ring engines to provide pitch and yaw, the downside is that it does not provide roll control. I actually managed to make that in game, and it actually reduces the cost, as gimballed engines are more expensive and heavier than not gimballed ones.

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    2,028 Wenhop

    Isn’t this widely known or am I just stupid?

    one month ago
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    @KirRu That was still not enough and N-1 suffered roll stability problem, but in Juno I did not encounter this problem.

    +1 one month ago
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    @KirRu oh, good to know.

    +1 one month ago
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    53.5k KirRu

    @deepfriedfrenchtoast @jacobssgt2
    Actually all N-1 had Roll control verniers on first three stages
    First stage on first three rockets had too small verniers, so they were changed to 4 RD-58 with short nozzle.

    Look here

    one month ago
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    @Dereric, Sorry for my mistake, I confused RD-107 with RD-108.

    one month ago
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    220 Dereric

    @jacobssgt2
    Are you sure?
    Afaik the RD-107 should look like 6 engines, because it has only 2 Vernier engines, the RD-108 has 4 Vernier engines. The 107 was used at the Soyuz booster, while the 108 was used at the Soyuz core stage. And both engines used 2 turbopumps, one for RP1 and one for LOX. Both pumps were powered by the same turbine, maybe that's the reason for the confusion.

    one month ago
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    21.6k Zenithspeed

    @jacobssgt2 interesting to know either way

    one month ago
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    @Zenithspeed
    In most Soviet engines verniers are not separate small engines, but just auxiliary combustion chambers, that share the same turbopump as the main combustion chamber. RD-107 may look like 8 rocket engines, but in real it's just one turbopump with 8 combustion chambers. Howewer, N-1 did not use verniers.

    +1 one month ago
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    21.6k Zenithspeed

    honestly it surprises me that the Russians always opted for the little vernier thrusters (i think that's what they're called?) rather than full gimbal thrust vectoring, but hey, it works, so i'm not complaining

    one month ago
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    yeah The N1 used grid fins on the first stage to control roll

    one month ago

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