| Term |
Age |
History |
|---|
| 1 |
18 |
Failed to qualify for Surveyor (Scout). |
| 1 |
18 |
Submitted to the draft. |
| 1 |
18 |
Became a Navy (Engineer/Gunner) with the new title Crewman. |
| 1 |
20 |
Vessel participates in a notable military engagement. |
| 1 |
22 |
Attempt at commissioned failed. |
| 1 |
22 |
Promoted to Navy (Engineer/Gunner) rank 1 with the new title Able Spacehand. |
| 2 |
22 |
Continued as Navy (Engineer/Gunner). |
| 2 |
25 |
Birth or Death involving a family member or close friend. |
| 3 |
26 |
Continued as Navy (Engineer/Gunner). |
| 3 |
28 |
Display heroism in battle, saving the whole ship. |
| 3 |
30 |
Commissioned in Navy (Engineer/Gunner) with the new title Ensign. |
| 3 |
30 |
Promoted to Navy (Engineer/Gunner) officer rank 2 with the new title Sublieutenant. |
| 4 |
30 |
Continued as Navy (Engineer/Gunner). |
| 4 |
32 |
Special assignment or duty on board ship. |
| 4 |
34 |
Forced to continue current assignment |
| 4 |
34 |
Promoted to Navy (Engineer/Gunner) officer rank 3 with the new title Lieutenant. |
| 5 |
34 |
Continued as Navy (Engineer/Gunner). |
| 5 |
38 |
Advanced training in a specialist field. |
| 5 |
38 |
Promoted to Navy (Engineer/Gunner) officer rank 4 with the new title Commander. |
| 6 |
38 |
Attempted to change assignments. |
| 6 |
38 |
Failed to qualify for Line/Crew (Navy). |
| 6 |
38 |
Continued as Navy (Engineer/Gunner). |
| 6 |
42 |
Good fortune |
| 6 |
42 |
Promoted to Navy (Engineer/Gunner) officer rank 5 with the new title Captain. |
| 7 |
42 |
Continued as Navy (Engineer/Gunner). |
| 7 |
46 |
Advanced training in a specialist field. |
| 7 |
46 |
Promoted to Navy (Engineer/Gunner) officer rank 6 with the new title Admiral. |