diff --git a/.voidbot/state/aetheria.cc b/.voidbot/state/aetheria.cc
index d68945627..e334b093a 100644
Binary files a/.voidbot/state/aetheria.cc and b/.voidbot/state/aetheria.cc differ
diff --git a/Assets/Scripts/Gameplay/ActionGameManager.cs b/Assets/Scripts/Gameplay/ActionGameManager.cs
index 32ea15417..68a048351 100644
--- a/Assets/Scripts/Gameplay/ActionGameManager.cs
+++ b/Assets/Scripts/Gameplay/ActionGameManager.cs
@@ -1514,7 +1514,11 @@ public class ActionGameManager : MonoBehaviour
                     var threshold = Settings.GameplaySettings.TargetDetectionInfoThreshold;
                     TargetVisibilityFill.fillAmount = lerp(.25f, .75f, (CurrentEntity.EntityInfoGathered[target] - threshold)/(1-threshold));
                     VisibilityToTargetFill.fillAmount = lerp(.25f, .75f, target.EntityInfoGathered[CurrentEntity] / threshold);
-                    TargetHitpointsFill.fillAmount = lerp(.25f, .75f, target.Hull.Durability / target.EquippedHull.Data.Durability);
+                    var targetHull = ItemManager.GetRuntimeItem(target.Hull);
+                    var targetMaxDurability = targetHull?.Durability > 0
+                        ? (float)targetHull.Durability
+                        : Math.Max(target.Hull.Durability, 1f);
+                    TargetHitpointsFill.fillAmount = lerp(.25f, .75f, target.Hull.Durability / targetMaxDurability);
                     TargetShieldsFill.fillAmount = target.Shield == null ? 0 : lerp(.25f, .75f, target.Shield.Progress);
                 }
 
diff --git a/docs/aetheria-perfect-machine-map.md b/docs/aetheria-perfect-machine-map.md
index dd14f1a46..e635a12ee 100644
--- a/docs/aetheria-perfect-machine-map.md
+++ b/docs/aetheria-perfect-machine-map.md
@@ -102,7 +102,9 @@ legacy catalog cache, and legacy UI paths should be migration-only or deleted.
   values until those session facts have typed runtime surfaces.
   Hull and item durability percentages use typed max durability only; incomplete
   typed rows use current runtime durability as the generic denominator instead
-  of falling back to legacy `ItemData.Durability`.
+  of falling back to legacy `ItemData.Durability`. Target HUD hitpoint fill also
+  reads target hull max durability from the typed runtime hull row instead of
+  `EquippedHull.Data.Durability`.
   Gear heat-fill ranges in the schematic HUD also read typed catalog thermal
   bounds; rows without typed thermal bounds use a neutral current-temperature
   range instead of hydrating legacy `ItemData`.
@@ -701,6 +703,8 @@ First Aetheria surfaces to publish:
    - Done: move schematic HUD weapon-row classification onto typed behavior-kind
      rows; runtime `Weapon` instances remain the owner for live ammo/cooldown
      display values.
+   - Done: move target HUD hitpoint fill denominator onto typed hull durability;
+     live hull item durability remains the numerator/runtime damage owner.
    - Done: import typed item specific heat and move `ItemManager` generic mass,
      thermal-mass, and crafted-price helpers onto typed runtime catalog rows.
    - Done: import typed thermal performance curve keys and move PropertiesPanel