diff --git a/src/internet-node/rtt-estimator.cc b/src/internet-node/rtt-estimator.cc
index 728d85e7f..2a2594894 100644
--- a/src/internet-node/rtt-estimator.cc
+++ b/src/internet-node/rtt-estimator.cc
@@ -74,12 +74,9 @@ RttEstimator::RttEstimator () : next (1), history (),
   //note next=1 everywhere since first segment will have sequence 1
 }
 
-RttEstimator::RttEstimator (Time e) : next (1), history (), est (e),
-    nSamples (0), multiplier (1.0) 
-{ }
-
 RttEstimator::RttEstimator(const RttEstimator& c)
-  : next(c.next), history(c.history), est(c.est), nSamples(c.nSamples),
+  : Object (c), next(c.next), history(c.history), 
+    m_maxMultiplier (c.m_maxMultiplier), est(c.est), nSamples(c.nSamples),
     multiplier(c.multiplier)
 {}
 
@@ -144,6 +141,10 @@ void RttEstimator::ClearSent ()
 
 void RttEstimator::IncreaseMultiplier ()
 {
+  double a;
+  a = multiplier * 2.0;
+  double b;
+  b = m_maxMultiplier * 2.0;
   multiplier = std::min (multiplier * 2.0, m_maxMultiplier);
 }
 
@@ -223,7 +224,7 @@ Time RttMeanDeviation::RetransmitTimeout ()
 
 Ptr<RttEstimator> RttMeanDeviation::Copy () const
 {
-  return Create<RttMeanDeviation> (*this);
+  return CopyObject<RttMeanDeviation> (this);
 }
 
 void RttMeanDeviation::Reset ()
diff --git a/src/internet-node/rtt-estimator.h b/src/internet-node/rtt-estimator.h
index 84fea6c7e..9daf4584f 100644
--- a/src/internet-node/rtt-estimator.h
+++ b/src/internet-node/rtt-estimator.h
@@ -51,7 +51,6 @@ public:
   static TypeId GetTypeId (void);
 
   RttEstimator();
-  RttEstimator(Time e);
   RttEstimator(const RttEstimator&); // Copy constructor
   virtual ~RttEstimator();
 
@@ -71,7 +70,6 @@ private:
   SequenceNumber        next;    // Next expected sequence to be sent
   RttHistory_t history; // List of sent packet
   double m_maxMultiplier;
-  Time m_initialEstimate;
 public:
   Time       est;     // Current estimate
   uint32_t      nSamples;// Number of samples