How to Say "jet engine" in Spanish
The Spanish word for “jet engine” is “reactor” — B1 level.

Examples
El avión tiene cuatro reactores potentes.
The plane has four powerful jet engines.
Escuchamos el ruido del reactor antes de despegar.
We heard the sound of the jet engine before taking off.
La compañía compró un nuevo reactor para vuelos ejecutivos.
The company bought a new jet for executive flights.
Adding 'es' for Plurals
Since this word ends in a consonant (r), you must add 'es' to make it plural: 'los reactores'.
Gender remains masculine
The word is always masculine ('el reactor'), regardless of the size or type of engine you are describing.
Confusing Jet and Propeller
Mistake: “Using 'reactor' for a small propeller plane.”
Correction: Use 'avioneta' for small planes and 'reactor' only for planes with jet engines.
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