diff --git a/src/Time/TimeManager.cxx b/src/Time/TimeManager.cxx
index 887ea65e5..856adbcf0 100644
--- a/src/Time/TimeManager.cxx
+++ b/src/Time/TimeManager.cxx
@@ -464,6 +464,10 @@ void TimeManager::setTimeOffset(const std::string& offset_type, long int offset)
             << _warp->getIntValue() );
 }
 
+double TimeManager::getSimSpeedUpFactor() const
+{
+    return _simTimeFactor->getDoubleValue();
+}
 
 // Register the subsystem.
 SGSubsystemMgr::Registrant<TimeManager> registrantTimeManager(
diff --git a/src/Time/TimeManager.hxx b/src/Time/TimeManager.hxx
index 677590232..c8dfc58d2 100644
--- a/src/Time/TimeManager.hxx
+++ b/src/Time/TimeManager.hxx
@@ -55,6 +55,7 @@ public:
     inline double getMPProtocolClockSec() const { return _mpProtocolClock; }
     inline double getSteadyClockSec() const { return _steadyClock; }
 
+    double getSimSpeedUpFactor() const;
 private:
     /**
      * Ensure a consistent update-rate using a combination of