Fleet power is part of Riftborne’s ships and fleets system and is documented here for patch 11.73. Source
Evidence status — confirmed: Unless noted otherwise, mechanics are verified against the installed patch 11.73 guide.
Fleet power is a context-sensitive combat estimate rather than a fixed conversion from ship count.
The combat calculation weights attack and defense against the opposing fleet’s light and heavy mix, then applies critical chance, tracking, evasion, carrier effects, base defense, shield integrity, directives, SPUs, and culture modifiers. A displayed value such as 3,200 power therefore has no universal ship count.
As a rough reading aid, a 3,200-power force may represent dozens of developed combat hulls or hundreds of inexpensive light hulls. The exact count changes with hull class, culture, shipyard levels, directives, SPUs, and whether the fleet is attacking or defending.
Patch-sensitive: Use the in-game Codex combat simulator for an exact matchup. Headcount alone cannot determine whether a force defeats a fortified base.