AugmentCmd should be clamped to [0.0..1.0] for 'augmentation method two' (#1090)

Author: cbirkhold

src/models/propulsion/FGTurbine.cpp

@@ -243,7 +243,7 @@ double FGTurbine::Run()
     if (AugmentCmd > 0.0) {
       Augmentation = true;
       double tdiff = (MaxThrust * MaxThrustLookup->GetValue()) - thrust;
-      thrust += (tdiff * AugmentCmd);
+      thrust += (tdiff * std::min(AugmentCmd, 1.0));
       FuelFlow_pph = Seek(&FuelFlow_pph, thrust * ATSFC->GetValue(), 5000.0, 10000.0);
       NozzlePosition = Seek(&NozzlePosition, 1.0, 0.8, 0.8);
     } else {
@@ -365,7 +365,7 @@ double FGTurbine::Trim()
     if (AugMethod == 2) {
       if (AugmentCmd > 0.0) {
         double tdiff = (MaxThrust * MaxThrustLookup->GetValue()) - thrust;
-        thrust += (tdiff * AugmentCmd);
+        thrust += (tdiff * std::min(AugmentCmd, 1.0));
       }
     }