diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/Ah6Entity.java b/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/Ah6Entity.java
index a80bc235a..7d0343fb7 100644
--- a/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/Ah6Entity.java
+++ b/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/Ah6Entity.java
@@ -196,7 +196,6 @@ public class Ah6Entity extends ContainerMobileVehicleEntity implements GeoEntity
         }
 
         if (this.onGround()) {
-            this.terrainCompat(2.7f, 2.7f);
             this.setDeltaMovement(this.getDeltaMovement().multiply(0.8, 1, 0.8));
         } else {
             setZRot(getRoll() * (backInputDown ? 0.9f : 0.99f));
@@ -212,6 +211,7 @@ public class Ah6Entity extends ContainerMobileVehicleEntity implements GeoEntity
 
         releaseDecoy();
         lowHealthWarning();
+        this.terrainCompat(2.7f, 2.7f);
 
         this.refreshDimensions();
     }
diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/SpeedboatEntity.java b/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/SpeedboatEntity.java
index eb74ff5ea..8c32b6cea 100644
--- a/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/SpeedboatEntity.java
+++ b/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/SpeedboatEntity.java
@@ -142,7 +142,6 @@ public class SpeedboatEntity extends ContainerMobileVehicleEntity implements Geo
         this.setDeltaMovement(this.getDeltaMovement().add(0.0, fluidFloat, 0.0));
 
         if (this.onGround()) {
-            this.terrainCompat(2f, 3f);
             this.setDeltaMovement(this.getDeltaMovement().multiply(0.2, 0.85, 0.2));
         } else if (isInWater()) {
             float f = (float) (0.75f - (0.04f * java.lang.Math.min(getSubmergedHeight(this), this.getBbHeight())) + 0.09f * Mth.abs(90 - (float) calculateAngle(this.getDeltaMovement(), this.getViewVector(1))) / 90);
@@ -165,6 +164,7 @@ public class SpeedboatEntity extends ContainerMobileVehicleEntity implements Geo
         turretAngle(40, 40);
         lowHealthWarning();
         inertiaRotate(2);
+        this.terrainCompat(2f, 3f);
 
         this.refreshDimensions();
     }
diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/Tom6Entity.java b/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/Tom6Entity.java
index e04f505fe..c262eac35 100644
--- a/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/Tom6Entity.java
+++ b/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/Tom6Entity.java
@@ -121,10 +121,6 @@ public class Tom6Entity extends MobileVehicleEntity implements GeoEntity {
         this.setDeltaMovement(this.getDeltaMovement().add(this.getViewVector(1).scale((forward ? 0.24 : -0.24) * this.getDeltaMovement().length())));
         this.setDeltaMovement(this.getDeltaMovement().multiply(f, f, f));
 
-        if (onGround()) {
-            this.terrainCompat(1f, 1.2f);
-        }
-
         if (this.isInWater() && this.tickCount % 4 == 0) {
             this.setDeltaMovement(this.getDeltaMovement().multiply(0.6, 0.6, 0.6));
             if (lastTickSpeed > 0.4) {
@@ -132,6 +128,7 @@ public class Tom6Entity extends MobileVehicleEntity implements GeoEntity {
             }
         }
 
+        this.terrainCompat(1f, 1.2f);
         this.setDeltaMovement(this.getDeltaMovement().add(0.0, 0.01, 0.0));
         this.refreshDimensions();
     }
diff --git a/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/base/MobileVehicleEntity.java b/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/base/MobileVehicleEntity.java
index 851d7fa01..fbbbfbdc7 100644
--- a/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/base/MobileVehicleEntity.java
+++ b/src/main/java/com/atsuishio/superbwarfare/entity/vehicle/base/MobileVehicleEntity.java
@@ -230,6 +230,8 @@ public abstract class MobileVehicleEntity extends EnergyVehicleEntity implements
 
     // 地形适应测试
     public void terrainCompat(float w, float l) {
+        if (!onGround()) return;
+
         Matrix4f transform = this.getWheelsTransform(1);
 
         // 点位