Definition
A direct-current electric motor in which the field windings are connected in parallel (in shunt) with the armature. Because the field receives a relatively constant voltage independent of armature load, a shunt-wound motor maintains a fairly steady speed across a wide range of loads, but produces lower starting torque than a series-wound motor.
Plain English
A DC motor wired so the magnetic field coils sit in a parallel branch alongside the spinning part. This wiring keeps the motor's speed steady even as the load on it changes.
Context Anchor
Seen in aircraft electrical system and maintenance discussions when comparing types of DC motors and their operating behavior.
Derivation
Shunt' comes from the old English meaning 'to turn aside' or 'divert.' In electrical use, a shunt is a parallel path that diverts part of the current. So a shunt-wound motor has its field winding wired as a side path next to the armature, rather than in line with it.
Why Pilots Care
Knowing the motor type helps you understand why some aircraft accessories run at a stable speed regardless of load while others speed up or slow down. It also matters when troubleshooting electrical faults and reading system schematics.
Analogy
Think of two lanes carrying power side by side: one lane feeds the rotating part, and the other feeds the magnetic field. Because the field has its own parallel path, the motor’s speed stays more even.
Intuition Check
Shunt does not mean a short circuit here. It means the field winding is connected in a parallel electrical path.
Example Sentence 1
The cabin blower uses a shunt-wound motor so its airflow stays consistent even when the load changes slightly.
Example Sentence 2
Technicians selected a shunt-wound motor for the cabin blower to keep airflow steady even when battery voltage drops.