diff --git a/src/FDM/YASim/PropEngine.cpp b/src/FDM/YASim/PropEngine.cpp
index 039c75172..429ded72e 100644
--- a/src/FDM/YASim/PropEngine.cpp
+++ b/src/FDM/YASim/PropEngine.cpp
@@ -62,6 +62,11 @@ float PropEngine::getOmega()
     return _omega;
 }
 
+void PropEngine::setOmega (float omega)
+{
+    _omega = omega;
+}
+
 void PropEngine::getThrust(float* out)
 {
     int i;
diff --git a/src/FDM/YASim/PropEngine.hpp b/src/FDM/YASim/PropEngine.hpp
index a0f84dc8c..7b8eac128 100644
--- a/src/FDM/YASim/PropEngine.hpp
+++ b/src/FDM/YASim/PropEngine.hpp
@@ -36,6 +36,7 @@ public:
     virtual void stabilize();
 
     float getOmega();
+    void setOmega (float omega);
     
 private:
     float _moment;