diff --git a/FerramAerospaceResearch/FARAeroComponents/FARVesselAero.cs b/FerramAerospaceResearch/FARAeroComponents/FARVesselAero.cs
index 8fb1752a4..9b987dc9a 100644
--- a/FerramAerospaceResearch/FARAeroComponents/FARVesselAero.cs
+++ b/FerramAerospaceResearch/FARAeroComponents/FARVesselAero.cs
@@ -511,7 +511,8 @@ private int VoxelCountFromType()
         public override void OnLoadVessel()
         {
             if (vessel.loaded)
-                if (vessel.rootPart.Modules.Contains("MissileLauncher") && vessel.parts.Count == 1)
+                if (ModUtils.IsBDArmoryInstalled && vessel.rootPart.Modules.Contains("MissileLauncher") &&
+                    vessel.parts.Count == 1)
                 {
                     vessel.rootPart.dragModel = Part.DragModel.CUBE;
                     enabled = false;
diff --git a/FerramAerospaceResearch/FARAeroComponents/ModularFlightIntegratorRegisterer.cs b/FerramAerospaceResearch/FARAeroComponents/ModularFlightIntegratorRegisterer.cs
index 598ca6e57..5a50e1a7d 100644
--- a/FerramAerospaceResearch/FARAeroComponents/ModularFlightIntegratorRegisterer.cs
+++ b/FerramAerospaceResearch/FARAeroComponents/ModularFlightIntegratorRegisterer.cs
@@ -106,8 +106,9 @@ private static void UpdateThermodynamicsPre(ModularFlightIntegrator fi)
         private static void UpdateAerodynamics(ModularFlightIntegrator fi, Part part)
         {
             //FIXME Proper model for airbrakes
-            if (part.Modules.Contains<ModuleAeroSurface>() ||
-                part.Modules.Contains("MissileLauncher") && part.vessel.rootPart == part)
+            if (part.vessel.rootPart == part &&
+                part.Modules.Contains<ModuleAeroSurface>() ||
+                ModUtils.IsBDArmoryInstalled && part.Modules.Contains("MissileLauncher"))
             {
                 fi.BaseFIUpdateAerodynamics(part);
             }
diff --git a/FerramAerospaceResearch/FARAeroUtil.cs b/FerramAerospaceResearch/FARAeroUtil.cs
index 6c88cc72a..8f873d842 100644
--- a/FerramAerospaceResearch/FARAeroUtil.cs
+++ b/FerramAerospaceResearch/FARAeroUtil.cs
@@ -267,10 +267,7 @@ public static void LoadAeroDataFromConfig()
             if (loaded)
                 return;
 
-            foreach (AssemblyLoader.LoadedAssembly assembly in AssemblyLoader.loadedAssemblies)
-                if (assembly.assembly.GetName().Name == "AJE")
-                    AJELoaded = true;
-
+            AJELoaded = ModUtils.IsAJEInstalled;
             SetDefaultValuesIfNoValuesLoaded();
 
             loaded = true;
diff --git a/FerramAerospaceResearch/FerramAerospaceResearch.csproj b/FerramAerospaceResearch/FerramAerospaceResearch.csproj
index 3873eb24b..f395bd4a7 100644
--- a/FerramAerospaceResearch/FerramAerospaceResearch.csproj
+++ b/FerramAerospaceResearch/FerramAerospaceResearch.csproj
@@ -214,6 +214,7 @@
     <Compile Include="Utils\GameDatabaseTextureLoader.cs" />
     <Compile Include="Utils\KSPUtils.cs" />
     <Compile Include="Utils\ModuleControlSurfaceUpgradeFix.cs" />
+    <Compile Include="Utils\ModUtils.cs" />
     <Compile Include="Utils\Serialization.cs" />
   </ItemGroup>
   <ItemGroup>
diff --git a/FerramAerospaceResearch/Utils/ModUtils.cs b/FerramAerospaceResearch/Utils/ModUtils.cs
new file mode 100644
index 000000000..caa3187f5
--- /dev/null
+++ b/FerramAerospaceResearch/Utils/ModUtils.cs
@@ -0,0 +1,41 @@
+using System;
+using System.Linq;
+
+namespace FerramAerospaceResearch
+{
+    public static class ModUtils
+    {
+        private static bool ajeInstalled = false;
+        private static bool needFindAJE = true;
+        private static bool bdArmoryInstalled = false;
+        private static bool needFindBDArmory = true;
+
+        public static bool IsAJEInstalled
+        {
+            get
+            {
+                if (needFindAJE)
+                {
+                    needFindAJE = false;
+                    ajeInstalled = AssemblyLoader.loadedAssemblies.Any(a => a.name.Equals("AJE", StringComparison.OrdinalIgnoreCase));
+                }
+
+                return ajeInstalled;
+            }
+        }
+
+        public static bool IsBDArmoryInstalled
+        {
+            get
+            {
+                if (needFindBDArmory)
+                {
+                    needFindBDArmory = false;
+                    bdArmoryInstalled = AssemblyLoader.loadedAssemblies.Any(a => a.name.Equals("BDArmory", StringComparison.OrdinalIgnoreCase));
+                }
+
+                return bdArmoryInstalled;
+            }
+        }
+    }
+}