| Term |
Age |
History |
|---|
| 1 |
18 |
Failed to qualify for Intelligence (Agent). |
| 1 |
18 |
Submitted to the draft. |
| 1 |
18 |
Became a Navy (Engineer/Gunner) with the new title Crewman. |
| 1 |
22 |
Vessel participates in a notable military engagement. |
| 1 |
22 |
Promoted to Navy (Engineer/Gunner) rank 1 with the new title Able Spacehand. |
| 2 |
22 |
Attempted to change assignments. |
| 2 |
22 |
Switched to Navy (Line/Crew) with previous rank. |
| 2 |
24 |
Special assignment or duty on board ship. |
| 3 |
26 |
Continued as Navy (Line/Crew). |
| 3 |
27 |
Special assignment or duty on board ship. |
| 3 |
30 |
Promoted to Navy (Line/Crew) rank 2 with the new title Petty Officer, 3rd class. |
| 4 |
30 |
Attempted to change assignments. |
| 4 |
30 |
Failed to qualify for Flight (Navy). |
| 4 |
30 |
Continued as Navy (Line/Crew). |
| 4 |
34 |
Vessel participates in a diplomatic mission. |
| 4 |
34 |
Gain a contact. |
| 4 |
34 |
Promoted to Navy (Line/Crew) rank 3 with the new title Petty Officer, 2nd class. |
| 5 |
34 |
Continued as Navy (Line/Crew). |
| 5 |
37 |
Special assignment or duty on board ship. |
| 5 |
38 |
Promoted to Navy (Line/Crew) rank 4 with the new title Petty Officer, 1st class. |
| 6 |
38 |
Continued as Navy (Line/Crew). |
| 6 |
39 |
Gained a contact. |
| 6 |
42 |
Promoted to Navy (Line/Crew) rank 5 with the new title Chief Petty Officer. |
| 7 |
42 |
Continued as Navy (Line/Crew). |
| 7 |
44 |
Special assignment or duty on board ship. |
| 7 |
46 |
Promoted to Navy (Line/Crew) rank 6 with the new title Master Chief. |