Lower-Cost and Derivative Builds
Optional reduced-fit FFG, DDG, and CAG production paths plus export, hospital, drone-support, replenishment, and auxiliary derivatives using common TriSeadon pieces and interfaces.
Open Optional Production PathsBranch Logic
Keep the Combat Baseline Stable
The TriSeadon baseline is the three main combat hulls: FFG, DDG, and CAG. Expedition hulls should exist only when they clearly reduce strain on those combatants, reuse enough of the shared architecture to stay economical, and avoid reopening the core design every time a new mission appears.
Why This Branch Exists
Operational reason: some missions need afloat staging, medical support, sustainment, or drone-control depth more than they need another primary combat hull.
Industrial reason: derivative hulls can preserve common systems, training, yard flow, and module standards while serving different roles.
Program-control reason: separating expedition variants from the core baseline prevents mission creep from destabilizing FFG, DDG, and CAG production.
Best-Fit Expedition Variants
Medical Response Variant
CAG-derived medical and casualty-response hull with aviation, command, and afloat care depth.
Open USNR Medical/Hospital Alternate HullExpedition Staging Variant
Support hull focused on boats, unmanned systems, command relay, and shore-interface support.
Open Builder ContextDrone and Mission-Control Variant
Hull optimized for UxV control, modular mission packages, battle-management relay, and regional persistence.
Open Technology TreeControl Rules for Expedition Hulls
- Do not let expedition roles redefine the primary combat hulls.
- Reuse shared propulsion, power, command, module, and training architecture wherever practical.
- Prefer derivative branches from proven TriSeadon hull logic over entirely new orphan programs.
- Approve expedition variants only when they remove measurable burden from combat hull tasking.
- Route new mission ideas through program governance, not ad hoc redesign pressure.
How to Read This Branch
Start with the baseline fleet, then decide whether the mission actually requires a derivative hull.
Optional Production Paths | Fleet Line | Ship and Builder Line | Industrial Base Line