Marine Corps · SSN history

517 Chief Plotter, Air Warning

Appendix B lists SSN 515 as a suggested conversion for SSN 517, titled Chief Plotter, Air Warning in the June 1944 tentative manual. This was not an automatic replacement: each affected Qualification Card required review against the manual’s job specifications.

Codes named in this history

Codes without a directory match

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

Documented history

Chief Plotter, Air Warning

June 1945 is the manual’s publication date, not an effective conversion date. No effective date is given for this entry.

  • The June 1945 Present Title column is blank; the entry does not establish a fixed replacement or explicitly identify a cancellation.
  • The September 1942 regulation and supplements column identifies SSN 517 as Plotting Board Supervisor, Aircraft Warning.
Source extraction notes

Predecessor title from the June 1944 tentative-manual column: Chief Plotter, Air Warning. Suggested conversions/remarks: 515. 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.