##  [Small-Disturbance Theory](/small-disturbance-theory) 

  ##  [Small-Disturbance Theory](https://engineering.quantumdictionary.io/small-disturbance-theory-0) 

  

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**Engineering & Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A linearization approach that models small deviations from a steady trimmed condition by retaining first-order terms of the equations of motion, producing linear (often time-invariant) systems that approximate vehicle dynamic behavior near an equilibrium for stability and control analysis.