| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Navy (Line/Crew) with the new title Crewman. |
| 1 |
22 |
Special assignment or duty on board ship. |
| 1 |
22 |
Commissioned in Navy (Line/Crew) with the new title Ensign. |
| 1 |
22 |
Promoted to Navy (Line/Crew) officer rank 2 with the new title Sublieutenant. |
| 2 |
22 |
Attempted to change assignments. |
| 2 |
22 |
Switched to Navy (Flight) with previous rank. |
| 2 |
24 |
Commanding officer takes an interest in Melton Johnston's career. |
| 2 |
26 |
Promoted to Navy (Flight) officer rank 3 with the new title Lieutenant. |
| 3 |
26 |
Continued as Navy (Flight). |
| 3 |
27 |
Vessel participates in a diplomatic mission. |