Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Data/Input/HydraRingCalculationInput.cs
===================================================================
diff -u -rf8c28b3b04cdabb62ea37772efcb1f4ebbbf2b9e -rc0d74f4f7288d1d30dd60be04c77fbaf2b7fdc06
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Data/Input/HydraRingCalculationInput.cs	(.../HydraRingCalculationInput.cs)	(revision f8c28b3b04cdabb62ea37772efcb1f4ebbbf2b9e)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Data/Input/HydraRingCalculationInput.cs	(.../HydraRingCalculationInput.cs)	(revision c0d74f4f7288d1d30dd60be04c77fbaf2b7fdc06)
@@ -141,6 +141,17 @@
         }
 
         /// <summary>
+        /// Gets the iteration method to use during the calculation.
+        /// </summary>
+        public virtual int IterationMethod
+        {
+            get
+            {
+                return 3;
+            }
+        }
+
+        /// <summary>
         /// Gets the sub mechanism model id corresponding to the provided sub mechanism id.
         /// </summary>
         /// <param name="subMechanismId">The sub mechanism id to get the sub mechanism model id for.</param>
Index: Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Data/Input/HydraRingCalculationInputTest.cs
===================================================================
diff -u -r64d60335b1deab4bafd37f78f3514660cc4afb27 -rc0d74f4f7288d1d30dd60be04c77fbaf2b7fdc06
--- Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Data/Input/HydraRingCalculationInputTest.cs	(.../HydraRingCalculationInputTest.cs)	(revision 64d60335b1deab4bafd37f78f3514660cc4afb27)
+++ Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Data/Input/HydraRingCalculationInputTest.cs	(.../HydraRingCalculationInputTest.cs)	(revision c0d74f4f7288d1d30dd60be04c77fbaf2b7fdc06)
@@ -45,6 +45,7 @@
             CollectionAssert.IsEmpty(hydraRingCalculationInput.ForelandsPoints);
             Assert.IsNull(hydraRingCalculationInput.BreakWater);
             Assert.IsNaN(hydraRingCalculationInput.Beta);
+            Assert.AreEqual(3, hydraRingCalculationInput.IterationMethod);
         }
 
         [Test]