Marine Corps · SSN history

774 Chief Radar Operator

Appendix B marks SSN 514 as a suggested replacement for SSN 774, Chief Radar Operator, as listed in AR 615-26 of September 1942 and its supplements. This was not an automatic conversion: each affected Marine’s Qualification Card had to be reviewed against the job specifications.

Codes named in this history

Codes without a directory match

  • 514 stated by the source. No directory or archive record matches.

Documented history

Chief Radar Operator

June 1945 is the manual’s publication date. No effective date is given for the suggested change from Chief Radar Operator.

  • The June 1945 title for SSN 774 was Airborne Radar Technician. The retained number does not establish a direct rename or successor relationship with Chief Radar Operator.
Source extraction notes

Predecessor title from the AR 615-26 column: Chief Radar Operator. Suggested conversions/remarks: *514. The table gives no row-level effective date. June 1945 is the manual publication date, not an effective conversion date.

Source documents (1)

Reviewed September 24, 2026 against references 3 and 4.

Historical information is drawn from the sources linked above. Classification dates are not personal service dates. Spot an error? Let us know.