diff --git a/Assets/Scripts/Boat/Physics/BoatPhysicsMath.cs b/Assets/Scripts/Boat/Physics/BoatPhysicsMath.cs
index 077ef04..a0eaa2c 100644
--- a/Assets/Scripts/Boat/Physics/BoatPhysicsMath.cs
+++ b/Assets/Scripts/Boat/Physics/BoatPhysicsMath.cs
@@ -342,7 +342,7 @@ public static Vector3 AirResistanceForce(float rho, TriangleData triangleData, f
         }
 
         //Find air resistance force
-        Vector3 airResistanceForce = 0.5f * rho * triangleData.velocity.magnitude * triangleData.velocity * triangleData.area * C_air;
+        Vector3 airResistanceForce = 0.5f * rho * triangleData.velocity.magnitude * triangleData.cosTheta * triangleData.velocity * triangleData.area * C_air;
 
         //Acting in the opposite side of the velocity
         airResistanceForce *= -1f;