From cce6e3e350b08d0dba26b965896f07df7047bd7a Mon Sep 17 00:00:00 2001
From: Chris Birkhold <cbirkhold@gmail.com>
Date: Fri, 17 May 2024 17:19:24 -0700
Subject: [PATCH 1/2] Clamp AugmentCmd to [0.0..1.0] when deriving its value
 from ThrottlePos.

---
 src/models/propulsion/FGTurbine.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/models/propulsion/FGTurbine.cpp b/src/models/propulsion/FGTurbine.cpp
index 5a2f510e20..9353d520d7 100644
--- a/src/models/propulsion/FGTurbine.cpp
+++ b/src/models/propulsion/FGTurbine.cpp
@@ -115,6 +115,9 @@ void FGTurbine::Calculate(void)
   if (ThrottlePos > 1.0) {
     AugmentCmd = ThrottlePos - 1.0;
     ThrottlePos -= AugmentCmd;
+    if (AugmentCmd > 1.0) {
+      AugmentCmd = 1.0;
+    }
   } else {
     AugmentCmd = 0.0;
   }

From ec6969809cc1929270b7138c681c644e7f907e72 Mon Sep 17 00:00:00 2001
From: Chris Birkhold <cbirkhold@gmail.com>
Date: Sat, 18 May 2024 11:34:40 -0700
Subject: [PATCH 2/2] Limit clamping of the augmented range to current 'method
 two' ...

this avoid conflicts with potential future augmentation modes while
keeping the thrust produced for 'method two' within the range configured
for the turbine.
---
 src/models/propulsion/FGTurbine.cpp | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/src/models/propulsion/FGTurbine.cpp b/src/models/propulsion/FGTurbine.cpp
index 9353d520d7..0b5c737415 100644
--- a/src/models/propulsion/FGTurbine.cpp
+++ b/src/models/propulsion/FGTurbine.cpp
@@ -115,9 +115,6 @@ void FGTurbine::Calculate(void)
   if (ThrottlePos > 1.0) {
     AugmentCmd = ThrottlePos - 1.0;
     ThrottlePos -= AugmentCmd;
-    if (AugmentCmd > 1.0) {
-      AugmentCmd = 1.0;
-    }
   } else {
     AugmentCmd = 0.0;
   }
@@ -246,7 +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 {
@@ -368,7 +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));
       }
     }