What is "radarmen"

Usage examples of "radarmen".

Simultaneously, Russian radarmen reported the sudden appearance of an enor­mous unidentified flying object bearing down on the fleet.

He darted through, knocking down one of the radarmen who was pushing against the door.

Compared with them the masters, the radarmen, and the astrogators (there were no supers nor stewards in those days) were gentle vegetarians.