diff --git a/src/rigidBodyDynamics/bodies/rigidBody/rigidBody.C b/src/rigidBodyDynamics/bodies/rigidBody/rigidBody.C
index 7d797f014..a02ad4207 100644
--- a/src/rigidBodyDynamics/bodies/rigidBody/rigidBody.C
+++ b/src/rigidBodyDynamics/bodies/rigidBody/rigidBody.C
@@ -46,6 +46,14 @@ namespace RBD
 }
 
 
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::autoPtr<Foam::RBD::rigidBody> Foam::RBD::rigidBody::clone() const
+{
+    return autoPtr<rigidBody>(new rigidBody(*this));
+}
+
+
 // * * * * * * * * * * * * * * * * Selectors * * * * * * * * * * * * * * * * //
 
 Foam::autoPtr<Foam::RBD::rigidBody> Foam::RBD::rigidBody::New
@@ -104,7 +112,7 @@ void Foam::RBD::rigidBody::merge(const subBody& subBody)
     *this = rigidBody
     (
         name(),
-        *this + transform(subBody.parentXT(), subBody)
+        *this + transform(subBody.parentXT(), subBody.body())
     );
 }
 
diff --git a/src/rigidBodyDynamics/bodies/rigidBody/rigidBody.H b/src/rigidBodyDynamics/bodies/rigidBody/rigidBody.H
index 9d2b3f279..0d763727d 100644
--- a/src/rigidBodyDynamics/bodies/rigidBody/rigidBody.H
+++ b/src/rigidBodyDynamics/bodies/rigidBody/rigidBody.H
@@ -107,7 +107,7 @@ public:
         );
 
         //- Return clone of this rigidBody
-        inline autoPtr<rigidBody> clone() const;
+        virtual autoPtr<rigidBody> clone() const;
 
 
     // Selectors
diff --git a/src/rigidBodyDynamics/bodies/rigidBody/rigidBodyI.H b/src/rigidBodyDynamics/bodies/rigidBody/rigidBodyI.H
index 5b6a66e87..497eddf6a 100644
--- a/src/rigidBodyDynamics/bodies/rigidBody/rigidBodyI.H
+++ b/src/rigidBodyDynamics/bodies/rigidBody/rigidBodyI.H
@@ -60,12 +60,6 @@ inline Foam::RBD::rigidBody::rigidBody
 {}
 
 
-inline Foam::autoPtr<Foam::RBD::rigidBody> Foam::RBD::rigidBody::clone() const
-{
-    return autoPtr<rigidBody>(new rigidBody(*this));
-}
-
-
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
 inline const Foam::word& Foam::RBD::rigidBody::name() const
diff --git a/src/rigidBodyDynamics/bodies/subBody/subBody.C b/src/rigidBodyDynamics/bodies/subBody/subBody.C
index 1508b8f43..b83953862 100644
--- a/src/rigidBodyDynamics/bodies/subBody/subBody.C
+++ b/src/rigidBodyDynamics/bodies/subBody/subBody.C
@@ -25,12 +25,6 @@ License
 
 #include "subBody.H"
 
-// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
-
-Foam::RBD::subBody::~subBody()
-{}
-
-
 // * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
 void Foam::RBD::subBody::write(Ostream& os) const
diff --git a/src/rigidBodyDynamics/bodies/subBody/subBody.H b/src/rigidBodyDynamics/bodies/subBody/subBody.H
index a9163e8e3..f030d32ab 100644
--- a/src/rigidBodyDynamics/bodies/subBody/subBody.H
+++ b/src/rigidBodyDynamics/bodies/subBody/subBody.H
@@ -51,8 +51,6 @@ namespace RBD
 \*---------------------------------------------------------------------------*/
 
 class subBody
-:
-    public rigidBody
 {
     // Private data
 
@@ -84,9 +82,8 @@ public:
             const spatialTransform& parentXT
         );
 
-
-    //- Destructor
-    virtual ~subBody();
+        //- Return clone of this subBody
+        inline autoPtr<subBody> clone() const;
 
 
     // Member Functions
@@ -94,6 +91,9 @@ public:
         //- Return the original body from which this sub-body was constructed
         inline const rigidBody& body() const;
 
+        //- Return the body name
+        inline const word& name() const;
+
         //- Return the parent body name
         inline const word& parentName() const;
 
@@ -104,7 +104,7 @@ public:
         inline const spatialTransform& parentXT() const;
 
         //- Write
-        virtual void write(Ostream&) const;
+        void write(Ostream&) const;
 };
 
 
diff --git a/src/rigidBodyDynamics/bodies/subBody/subBodyI.H b/src/rigidBodyDynamics/bodies/subBody/subBodyI.H
index b8c2813d4..79104889e 100644
--- a/src/rigidBodyDynamics/bodies/subBody/subBodyI.H
+++ b/src/rigidBodyDynamics/bodies/subBody/subBodyI.H
@@ -33,7 +33,6 @@ inline Foam::RBD::subBody::subBody
     const spatialTransform& parentXT
 )
 :
-    rigidBody(bodyPtr()),
     body_(bodyPtr),
     parentName_(parentName),
     parentID_(parentID),
@@ -41,6 +40,12 @@ inline Foam::RBD::subBody::subBody
 {}
 
 
+inline Foam::autoPtr<Foam::RBD::subBody> Foam::RBD::subBody::clone() const
+{
+    return autoPtr<subBody>(new subBody(*this));
+}
+
+
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
 inline const Foam::RBD::rigidBody& Foam::RBD::subBody::body() const
@@ -49,6 +54,12 @@ inline const Foam::RBD::rigidBody& Foam::RBD::subBody::body() const
 }
 
 
+inline const Foam::word& Foam::RBD::subBody::name() const
+{
+    return body_->name();
+}
+
+
 inline const Foam::word& Foam::RBD::subBody::parentName() const
 {
     return parentName_;