Workaround for bug in Vessel.horizontalSrfSpeed
Workaround for bug in Vessel.horizontalSrfSpeed

--- a/KerbalEngineer/Editor/BuildAdvanced.cs
+++ b/KerbalEngineer/Editor/BuildAdvanced.cs
@@ -523,12 +523,12 @@
             GUILayout.EndHorizontal();
 
             GUILayout.BeginHorizontal();
-            GUILayout.Label("Simulate using vectored thrust values:");
+            GUILayout.Label("Simulate using vectored thrust values:", settingStyle);
             SimManager.vectoredThrust = GUILayout.Toggle(SimManager.vectoredThrust, "ENABLED", buttonStyle, GUILayout.Width(100.0f * GuiDisplaySize.Offset));
             GUILayout.EndHorizontal();
 
             GUILayout.BeginHorizontal();
-            GUILayout.Label("Verbose Simulation Log:");
+            GUILayout.Label("Verbose Simulation Log:", settingStyle);
             SimManager.logOutput = GUILayout.Toggle(SimManager.logOutput, "ENABLED", buttonStyle, GUILayout.Width(100.0f * GuiDisplaySize.Offset));
             GUILayout.EndHorizontal();
 

--- a/KerbalEngineer/Flight/Readouts/Surface/HorizontalSpeed.cs
+++ b/KerbalEngineer/Flight/Readouts/Surface/HorizontalSpeed.cs
@@ -21,6 +21,7 @@
 
 using KerbalEngineer.Extensions;
 using KerbalEngineer.Flight.Sections;
+using System;
 
 #endregion
 
@@ -44,7 +45,11 @@
 
         public override void Draw(SectionModule section)
         {
-            this.DrawLine(FlightGlobals.ActiveVessel.horizontalSrfSpeed.ToSpeed(), section.IsHud);
+            // Used to do this but the bug-fix to horizontalSrfSpeed in KSP 1.0.3 actually made it worse so workaround
+            //this.DrawLine(FlightGlobals.ActiveVessel.horizontalSrfSpeed.ToSpeed(), section.IsHud);
+            var ves = FlightGlobals.ActiveVessel;
+            double horizSpeed = Math.Sqrt(ves.srfSpeed * ves.srfSpeed - ves.verticalSpeed * ves.verticalSpeed);
+            this.DrawLine(horizSpeed.ToSpeed(), section.IsHud);
         }
 
         #endregion

--- a/KerbalEngineer/Flight/Readouts/Vessel/IntakeAirDemandSupply.cs
+++ b/KerbalEngineer/Flight/Readouts/Vessel/IntakeAirDemandSupply.cs
@@ -55,10 +55,11 @@
             var demand = 0.0;
             foreach (var part in FlightGlobals.ActiveVessel.Parts)
             {
-                if (part.Modules.Contains("ModuleEngines"))
+                for (int i = 0; i < part.Modules.Count; i++)
                 {
-                    var engine = part.Modules["ModuleEngines"] as ModuleEngines;
-                    if (engine.isOperational)
+                    PartModule partmod = part.Modules[i];
+                    var engine = partmod as ModuleEngines;
+                    if (engine != null && engine.isOperational)
                     {
                         demand += engine.propellants
                             .Where(p => p.name == "IntakeAir")