Q&A: when a naval officer's career path becomes visible

At what point does the Royal Navy effectively decide how far an officer is likely to be promoted?

Usually by commander rank the appointment pattern makes the likely path visible, although strong performance as a captain can still change it.

An officer can still alter a career through exceptional performance, especially as a captain. By commander rank, however, the sequence of appointments usually indicates whether the service expects that officer to become a rear admiral. Some jobs are developmental steps toward operational command, while others require senior rank but normally end further advancement. Reading appointments therefore reveals how the institution selects and signals its future leaders. The answer supplies useful context for the many captains and admirals who pass through Rodney's career.