CONTROL OVER SPACESHIP ANGULAR MOTION Russian patent published in 2013 - IPC B64G1/26 

FIELD: transport.

SUBSTANCE: invention relates to rocketry. Proposed method comprises deflecting combustion chambers arranged crosswise in stabilisation planes I, II, III and IV. Note here that pitch, yaw and spin command signals δ_ϑ ^com, δ_ϑ ^com, δ_φ ^com and deflection control signals δ₁, δ₂, δ₃, δ₄ are generated. To create the moment of pitch, chambers located in half-planes II and IV are turned, to create yaw moment, chambers located in half-planes I and III are turned, and, to create spin moment, chambers creating the moment in the plane of drawing 1 are turned. Resultant angle of deflection of every combustion chamber is generated as algebraic sum of angles δ_ϑ ^com, δ_ϑ ^com, δ_φ ^com. In case absolute magnitude of on of control signals δ₁(i = 1, 2, 3, 4) exceeds its maximum tolerable value δ_max, signals are redistributed between chambers by the following law: δ_i*=δ_maxsignδ_i; δ_j*=δ_j±(δ_i-δ_maxsignδ_l), j ≠ i, where sign "+" is used if j-th and i-th chambers are adjacent, while sign "-" is used in case said chambers are opposite.

EFFECT: improved characteristics of stability and controllability.

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