diff --git a/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/blockMeshDict b/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/blockMeshDict
index e92512dbda..c5556f0a06 100644
--- a/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/blockMeshDict
+++ b/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/blockMeshDict
@@ -29,14 +29,14 @@ vertices
     ( -1.00    1.0   1)
 
     // hullBox
-    (  -0.03  -0.20  -0.2)  // 8
+    (  0.04  -0.20  -0.2)  // 8
     (  0.80  -0.20  -0.2)
     (  0.80   0.20  -0.2)  // 10
-    (  -0.03   0.20  -0.2)
-    (  -0.03  -0.20   0.2)  // 12
+    (  0.04   0.20  -0.2)
+    (  0.04  -0.20   0.2)  // 12
     (  0.80  -0.20   0.2)
     (  0.80   0.20   0.2)  // 14
-    (  -0.03   0.20   0.2)
+    (  0.04   0.20   0.2)
 
     // propeller
     ( -0.03   -0.08  -0.08)  // 16
diff --git a/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/controlDict b/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/controlDict
index d8d31ea468..7d4d6fce32 100644
--- a/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/controlDict
+++ b/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/controlDict
@@ -25,7 +25,7 @@ startTime       0;
 
 stopAt          endTime;
 
-endTime         1;
+endTime         5;
 
 deltaT          0.001;
 
@@ -50,7 +50,7 @@ runTimeModifiable true;
 adjustTimeStep  yes;
 
 //maxCo           1;
-maxCo           2.0;
+maxCo           4.0;
 maxAlphaCo      5.0;
 maxDeltaT       1;
 
diff --git a/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/topoSetDictHull b/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/topoSetDictHull
index 3f991676c9..4d2bdcd22c 100644
--- a/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/topoSetDictHull
+++ b/tutorials/multiphase/overInterDyMFoam/boatAndPropeller/system/topoSetDictHull
@@ -60,7 +60,7 @@ actions
         source  boxToCell;
         boxes
         (
-            (0.06 -0.082 -0.1)(0.52 0.052 0.1) //hullBox
+            (0.07 -0.082 -0.1)(0.52 0.052 0.1) //hullBox
         );
     }