diff --git a/cpp/Velocities.hpp b/cpp/Velocities.hpp
new file mode 100644
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--- /dev/null
+++ b/cpp/Velocities.hpp
@@ -0,0 +1,93 @@
+/**
+*
+* Velocities.hpp - C++ header for Velocities class
+*
+* Copyright (C) 2014 Simon D. Levy
+
+* This code is free software: you can redistribute it and/or modify
+* it under the terms of the GNU Lesser General Public License as
+* published by the Free Software Foundation, either version 3 of the
+* License, or (at your option) any later version.
+*
+* This code is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU Lesser General Public License
+* along with this code. If not, see .
+*/
+
+#include
+#include
+
+#include
+#include
+using namespace std;
+
+
+/**
+* A class representing the forward and angular velocities of a robot.
+*/
+class Velocities
+{
+ friend class Scan;
+
+public:
+
+/**
+* Creates a new Velocities object with specified velocities.
+*/
+Velocities(double dxy_mm, double dtheta_degrees, double dtSeconds)
+{
+ this->dxy_mm = dxy_mm;
+ this->dtheta_degrees = dtheta_degrees;
+ this->dt_seconds = dtSeconds;
+}
+
+/**
+* Creates a new Velocities object with zero velocities.
+*/
+Velocities(void)
+{
+ this->dxy_mm = 0;
+ this->dtheta_degrees = 0;
+ this->dt_seconds = 0;
+}
+
+
+
+/**
+* Updates this Velocities object.
+* @param dxy_mm new forward distance traveled in millimeters
+* @param dtheta_degrees new angular rotation in degrees
+* @param dtSeconds time in seconds since last velocities
+*/
+void update(double dxy_mm, double dtheta_degrees, double dtSeconds)
+{
+ double velocity_factor = (dtSeconds > 0) ? (1 / dtSeconds) : 0;
+
+ this->dxy_mm = dxy_mm * velocity_factor;
+
+ this->dtheta_degrees = dtheta_degrees * velocity_factor;
+}
+
+friend ostream& operator<< (ostream & out, Velocities & velocities)
+{
+ char str[100];
+
+ sprintf(str, "