Index: Riskeer/MacroStabilityInwards/src/Riskeer.MacroStabilityInwards.Data/GeneralMacroStabilityInwardsInput.cs
===================================================================
diff -u -r7bc1bc14adf1757b8604fb6b0b280bb8d48ee4ae -r5db2b344fe15c1560c39a8574a6b28811e39439e
--- Riskeer/MacroStabilityInwards/src/Riskeer.MacroStabilityInwards.Data/GeneralMacroStabilityInwardsInput.cs	(.../GeneralMacroStabilityInwardsInput.cs)	(revision 7bc1bc14adf1757b8604fb6b0b280bb8d48ee4ae)
+++ Riskeer/MacroStabilityInwards/src/Riskeer.MacroStabilityInwards.Data/GeneralMacroStabilityInwardsInput.cs	(.../GeneralMacroStabilityInwardsInput.cs)	(revision 5db2b344fe15c1560c39a8574a6b28811e39439e)
@@ -36,6 +36,7 @@
         {
             ModelFactor = 1.06;
             WaterVolumetricWeight = 9.81;
+            B = 50.0;
         }
 
         /// <summary>
@@ -47,5 +48,11 @@
         /// Gets the volumetric weight of water.
         /// </summary>
         public double WaterVolumetricWeight { get; }
+        
+        /// <summary>
+        /// Gets the 'b' parameter used to factor in the 'length effect' when determining
+        /// the maximum tolerated probability of failure.
+        /// </summary>
+        public double B { get; }
     }
 }
\ No newline at end of file
Index: Riskeer/MacroStabilityInwards/test/Riskeer.MacroStabilityInwards.Data.Test/GeneralMacroStabilityInwardsInputTest.cs
===================================================================
diff -u -r7bc1bc14adf1757b8604fb6b0b280bb8d48ee4ae -r5db2b344fe15c1560c39a8574a6b28811e39439e
--- Riskeer/MacroStabilityInwards/test/Riskeer.MacroStabilityInwards.Data.Test/GeneralMacroStabilityInwardsInputTest.cs	(.../GeneralMacroStabilityInwardsInputTest.cs)	(revision 7bc1bc14adf1757b8604fb6b0b280bb8d48ee4ae)
+++ Riskeer/MacroStabilityInwards/test/Riskeer.MacroStabilityInwards.Data.Test/GeneralMacroStabilityInwardsInputTest.cs	(.../GeneralMacroStabilityInwardsInputTest.cs)	(revision 5db2b344fe15c1560c39a8574a6b28811e39439e)
@@ -37,6 +37,7 @@
             Assert.IsInstanceOf<IGeneralMacroStabilityInwardsWaternetInput>(inputParameters);
             Assert.AreEqual(1.06, inputParameters.ModelFactor);
             Assert.AreEqual(9.81, inputParameters.WaterVolumetricWeight);
+            Assert.AreEqual(50.0, inputParameters.B);
         }
     }
 }
\ No newline at end of file
Index: Riskeer/Piping/src/Riskeer.Piping.Data/GeneralPipingInput.cs
===================================================================
diff -u -r2c8489db3f5466761b8d3e2a79989e031a3a21ae -r5db2b344fe15c1560c39a8574a6b28811e39439e
--- Riskeer/Piping/src/Riskeer.Piping.Data/GeneralPipingInput.cs	(.../GeneralPipingInput.cs)	(revision 2c8489db3f5466761b8d3e2a79989e031a3a21ae)
+++ Riskeer/Piping/src/Riskeer.Piping.Data/GeneralPipingInput.cs	(.../GeneralPipingInput.cs)	(revision 5db2b344fe15c1560c39a8574a6b28811e39439e)
@@ -61,6 +61,7 @@
             Gravity = 9.81;
             MeanDiameter70 = 2.08e-4;
             SellmeijerReductionFactor = 0.3;
+            B = 300.0;
         }
 
         #region Heave specific parameters
@@ -171,5 +172,15 @@
         public double SellmeijerReductionFactor { get; }
 
         #endregion
+
+        #region Length Effect parameters
+
+        /// <summary>
+        /// Gets the 'b' parameter used to factor in the 'length effect' when determining
+        /// the maximum tolerated probability of failure.
+        /// </summary>
+        public double B { get; }
+
+        #endregion
     }
 }
\ No newline at end of file
Index: Riskeer/Piping/test/Riskeer.Piping.Data.Test/GeneralPipingInputTest.cs
===================================================================
diff -u -r2c8489db3f5466761b8d3e2a79989e031a3a21ae -r5db2b344fe15c1560c39a8574a6b28811e39439e
--- Riskeer/Piping/test/Riskeer.Piping.Data.Test/GeneralPipingInputTest.cs	(.../GeneralPipingInputTest.cs)	(revision 2c8489db3f5466761b8d3e2a79989e031a3a21ae)
+++ Riskeer/Piping/test/Riskeer.Piping.Data.Test/GeneralPipingInputTest.cs	(.../GeneralPipingInputTest.cs)	(revision 5db2b344fe15c1560c39a8574a6b28811e39439e)
@@ -72,6 +72,7 @@
             Assert.AreEqual(9.81, inputParameters.Gravity);
             Assert.AreEqual(2.08e-4, inputParameters.MeanDiameter70);
             Assert.AreEqual(0.3, inputParameters.SellmeijerReductionFactor);
+            Assert.AreEqual(300.0, inputParameters.B);
         }
 
         [Test]