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SESK: Stuff Everyone Should Know · sesk.info/aero-guidance-plans-control-steers

Which rocket system decides the path to the destination?

The guidance system determines the route.

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  1. Airframe
  2. Guidance ✔
  3. Propulsion

Why: Guidance computes the desired trajectory. The control system then steers the rocket and keeps it stable while following that path.

Huh, didn't know that: Movable nozzles or small control rockets can change a vehicle's direction.

The dad joke
Guidance brought a map, and control brought the steering wheel.
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References

Answer: Guidance. Guidance computes the desired trajectory. The control system then steers the rocket and keeps it stable while following that path.

  1. Aerospace Dimensions Module 4, Rockets akwg.cap.gov/media/cms/Module_4__Rockets_6660F78F20B68_4ad77.pdf
    guidance system - determines the path the rocket should take; the brain of the rocket
    Checked 2026-10-10.

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