Fixed issue where physically insignificant part mass was not being correctly cascaded down through parent parts.
Fixed issue where physically insignificant part mass was not being correctly cascaded down through parent parts.

--- a/Documents/CHANGES.txt
+++ b/Documents/CHANGES.txt
@@ -1,6 +1,9 @@
-1.0.17.1
+1.0.18.0
+    Added: Orbital readouts - "Speed at Periapsis" and "Speed at Apoapsis". (Padishar)
+    Added: Manoeuvre readouts - "Post-burn Apoapsis" and "Post-burn Periapsis". (Padishar)
     Fixed: Synched the minimum simulation time sliders and stopped them from snapping back after 999ms. (saybur)
     Fixed: Added workaround for the bug in Vessel.horizontalSrfSpeed (Padishar)
+    Fixed: Physically insignificant part masses were not correctly being cascaded down through its parents.
 
 1.0.17.0
     Added: 'Mach Number' readout under the 'Surface' category and included it on the default surface HUD.

--- a/KerbalEngineer/EngineerGlobals.cs
+++ b/KerbalEngineer/EngineerGlobals.cs
@@ -25,7 +25,7 @@
         /// <summary>
         ///     Current version of the Kerbal Engineer assembly.
         /// </summary>
-        public const string ASSEMBLY_VERSION = "1.0.17.0";
+        public const string ASSEMBLY_VERSION = "1.0.18.0";
 
         private static string assemblyFile;
         private static string assemblyName;

--- a/KerbalEngineer/Flight/Readouts/Orbital/ManoeuvreNode/ManoeuvreProcessor.cs
+++ b/KerbalEngineer/Flight/Readouts/Orbital/ManoeuvreNode/ManoeuvreProcessor.cs
@@ -63,6 +63,10 @@
 
         public static double NormalDeltaV { get; private set; }
 
+        public static double PostBurnAp { get; private set; }
+
+        public static double PostBurnPe { get; private set; }
+
         public static double ProgradeDeltaV { get; private set; }
 
         public static double RadialDeltaV { get; private set; }
@@ -110,6 +114,8 @@
             NormalDeltaV = deltaV.y;
             RadialDeltaV = deltaV.x;
             TotalDeltaV = node.GetBurnVector(FlightGlobals.ship_orbit).magnitude;
+            PostBurnAp = node.nextPatch != null ? node.nextPatch.ApA : 0;
+            PostBurnPe = node.nextPatch != null ? node.nextPatch.PeA : 0;
 
             UniversalTime = FlightGlobals.ActiveVessel.patchedConicSolver.maneuverNodes[0].UT;
             AngleToPrograde = FlightGlobals.ActiveVessel.patchedConicSolver.maneuverNodes[0].patch.GetAngleToPrograde(UniversalTime);

--- /dev/null
+++ b/KerbalEngineer/Flight/Readouts/Orbital/ManoeuvreNode/PostBurnApoapsis.cs
@@ -1,1 +1,69 @@
+// 
+//     Kerbal Engineer Redux
+// 
+//     Copyright (C) 2014 CYBUTEK
+// 
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as published by
+//     the Free Software Foundation, either version 3 of the License, or
+//     (at your option) any later version.
+// 
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General Public License for more details.
+// 
+//     You should have received a copy of the GNU General Public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// 
 
+#region Using Directives
+
+using System;
+
+using KerbalEngineer.Extensions;
+using KerbalEngineer.Flight.Sections;
+
+#endregion
+
+namespace KerbalEngineer.Flight.Readouts.Orbital.ManoeuvreNode
+{
+    public class PostBurnApoapsis : ReadoutModule
+    {
+        #region Constructors
+
+        public PostBurnApoapsis()
+        {
+            this.Name = "Post-burn Apoapsis";
+            this.Category = ReadoutCategory.GetCategory("Orbital");
+            this.HelpString = String.Empty;
+            this.IsDefault = false;
+        }
+
+        #endregion
+
+        #region Methods: public
+
+        public override void Draw(SectionModule section)
+        {
+            if (!ManoeuvreProcessor.ShowDetails)
+            {
+                return;
+            }
+
+            this.DrawLine("Post-burn Apoapsis", ManoeuvreProcessor.PostBurnAp.ToDistance(), section.IsHud);
+        }
+
+        public override void Reset()
+        {
+            ManoeuvreProcessor.Reset();
+        }
+
+        public override void Update()
+        {
+            ManoeuvreProcessor.RequestUpdate();
+        }
+
+        #endregion
+    }
+}

--- /dev/null
+++ b/KerbalEngineer/Flight/Readouts/Orbital/ManoeuvreNode/PostBurnPeriapsis.cs
@@ -1,1 +1,69 @@
+// 
+//     Kerbal Engineer Redux
+// 
+//     Copyright (C) 2014 CYBUTEK
+// 
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as published by
+//     the Free Software Foundation, either version 3 of the License, or
+//     (at your option) any later version.
+// 
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General Public License for more details.
+// 
+//     You should have received a copy of the GNU General Public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// 
 
+#region Using Directives
+
+using System;
+
+using KerbalEngineer.Extensions;
+using KerbalEngineer.Flight.Sections;
+
+#endregion
+
+namespace KerbalEngineer.Flight.Readouts.Orbital.ManoeuvreNode
+{
+    public class PostBurnPeriapsis : ReadoutModule
+    {
+        #region Constructors
+
+        public PostBurnPeriapsis()
+        {
+            this.Name = "Post-burn Periapsis";
+            this.Category = ReadoutCategory.GetCategory("Orbital");
+            this.HelpString = String.Empty;
+            this.IsDefault = false;
+        }
+
+        #endregion
+
+        #region Methods: public
+
+        public override void Draw(SectionModule section)
+        {
+            if (!ManoeuvreProcessor.ShowDetails)
+            {
+                return;
+            }
+
+            this.DrawLine("Post-burn Periapsis", ManoeuvreProcessor.PostBurnPe.ToDistance(), section.IsHud);
+        }
+
+        public override void Reset()
+        {
+            ManoeuvreProcessor.Reset();
+        }
+
+        public override void Update()
+        {
+            ManoeuvreProcessor.RequestUpdate();
+        }
+
+        #endregion
+    }
+}

--- /dev/null
+++ b/KerbalEngineer/Flight/Readouts/Orbital/SpeedAtApoapsis.cs
@@ -1,1 +1,68 @@
+// 
+//     Kerbal Engineer Redux
+// 
+//     Copyright (C) 2014 CYBUTEK
+// 
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as published by
+//     the Free Software Foundation, either version 3 of the License, or
+//     (at your option) any later version.
+// 
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General Public License for more details.
+// 
+//     You should have received a copy of the GNU General Public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// 
 
+#region Using Directives
+
+using System;
+using KerbalEngineer.Flight.Sections;
+using KerbalEngineer.Helpers;
+using KerbalEngineer.Extensions;
+
+#endregion
+
+namespace KerbalEngineer.Flight.Readouts.Orbital
+{
+    public class SpeedAtApoapsis : ReadoutModule
+    {
+        #region Constructors
+
+        public SpeedAtApoapsis()
+        {
+            this.Name = "Speed at Apoapsis";
+            this.Category = ReadoutCategory.GetCategory("Orbital");
+            this.HelpString = "Shows the orbital speed of the vessel when at apoapsis, the highest point of the orbit.";
+            this.IsDefault = false;
+        }
+
+        #endregion
+
+        #region Methods: public
+
+        public override void Draw(SectionModule section)
+        {
+            // Vis-viva: v^2 = GM(2/r - 1/a)
+            // All this is easily got from the ships orbit (and reference body)
+            String str;
+            Orbit orbit = FlightGlobals.ship_orbit;
+            if (orbit.eccentricity > 1.0)
+                str = "---m/s";
+            else
+            {
+                double speedsqr = orbit.referenceBody.gravParameter * ((2 / orbit.ApR) - (1 / orbit.semiMajorAxis));
+                if (Double.IsNaN(speedsqr) || speedsqr < 0)
+                    str = "---m/s";     // Don't think this is possible barring bugs in the Orbit class
+                else
+                    str = Math.Sqrt(speedsqr).ToSpeed();
+            }
+            this.DrawLine(str, section.IsHud);
+        }
+
+        #endregion
+    }
+}

--- /dev/null
+++ b/KerbalEngineer/Flight/Readouts/Orbital/SpeedAtPeriapsis.cs
@@ -1,1 +1,64 @@
+// 
+//     Kerbal Engineer Redux
+// 
+//     Copyright (C) 2014 CYBUTEK
+// 
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as published by
+//     the Free Software Foundation, either version 3 of the License, or
+//     (at your option) any later version.
+// 
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General Public License for more details.
+// 
+//     You should have received a copy of the GNU General Public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// 
 
+#region Using Directives
+
+using System;
+using KerbalEngineer.Flight.Sections;
+using KerbalEngineer.Helpers;
+using KerbalEngineer.Extensions;
+
+#endregion
+
+namespace KerbalEngineer.Flight.Readouts.Orbital
+{
+    public class SpeedAtPeriapsis : ReadoutModule
+    {
+        #region Constructors
+
+        public SpeedAtPeriapsis()
+        {
+            this.Name = "Speed at Periapsis";
+            this.Category = ReadoutCategory.GetCategory("Orbital");
+            this.HelpString = "Shows the orbital speed of the vessel when at periapsis, the lowest point of the orbit.";
+            this.IsDefault = false;
+        }
+
+        #endregion
+
+        #region Methods: public
+
+        public override void Draw(SectionModule section)
+        {
+            // Vis-viva: v^2 = GM(2/r - 1/a)
+            // All this is easily got from the ships orbit (and reference body)
+            String str;
+            Orbit orbit = FlightGlobals.ship_orbit;
+            double oneovera = (orbit.eccentricity == 1) ? 0 : (1 / orbit.semiMajorAxis);
+            double speedsqr = orbit.referenceBody.gravParameter * ((2 / orbit.PeR) - oneovera);
+            if (Double.IsNaN(speedsqr) || speedsqr < 0)
+                str = "---m/s";
+            else
+                str = Math.Sqrt(speedsqr).ToSpeed();
+            this.DrawLine(str, section.IsHud);
+        }
+
+        #endregion
+    }
+}

--- /dev/null
+++ b/KerbalEngineer/Flight/Readouts/Orbital/TimeToAtmosphere.cs
@@ -1,1 +1,99 @@
+// 
+//     Kerbal Engineer Redux
+// 
+//     Copyright (C) 2014 CYBUTEK
+// 
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as published by
+//     the Free Software Foundation, either version 3 of the License, or
+//     (at your option) any later version.
+// 
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General Public License for more details.
+// 
+//     You should have received a copy of the GNU General Public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// 
 
+#region Using Directives
+
+using System;
+using KerbalEngineer.Flight.Sections;
+using KerbalEngineer.Helpers;
+
+#endregion
+
+namespace KerbalEngineer.Flight.Readouts.Orbital
+{
+    public class TimeToAtmosphere : ReadoutModule
+    {
+        //private LogMsg log = new LogMsg();
+        
+        #region Constructors
+
+        public TimeToAtmosphere()
+        {
+            this.Name = "Time to Atmosphere";
+            this.Category = ReadoutCategory.GetCategory("Orbital");
+            this.HelpString = "Shows the time until the vessel enters or leaves atmosphere.";
+            this.IsDefault = false;
+        }
+
+        #endregion
+
+        #region Methods: public
+
+        public override void Draw(SectionModule section)
+        {
+            String str;
+            Orbit orbit = FlightGlobals.ship_orbit;
+
+            if (orbit.referenceBody.atmosphere && orbit.PeA < orbit.referenceBody.atmosphereDepth)
+            {
+                double tA = orbit.TrueAnomalyAtRadius(orbit.referenceBody.atmosphereDepth + orbit.referenceBody.Radius);
+                //log.buf.AppendFormat("tA = {0}\n", tA);
+                double utTime = Planetarium.GetUniversalTime();
+                //log.buf.AppendFormat("utTime = {0}\n", utTime);
+                double timeAtRad1 = orbit.GetUTforTrueAnomaly(tA, orbit.period * 0.5);
+                //log.buf.AppendFormat("timeAtRad1 = {0}\n", timeAtRad1);
+                if (timeAtRad1 < utTime)
+                {
+                    timeAtRad1 += orbit.period;
+                    //log.buf.AppendFormat("timeAtRad1 = {0}\n", timeAtRad1);
+                }
+                double timeAtRad2 = orbit.GetUTforTrueAnomaly(-tA, orbit.period * 0.5);
+                //log.buf.AppendFormat("timeAtRad2 = {0}\n", timeAtRad2);
+                if (timeAtRad2 < utTime)
+                {
+                    timeAtRad2 += orbit.period;
+                    //log.buf.AppendFormat("timeAtRad2 = {0}\n", timeAtRad2);
+                }
+                double time = Math.Min(timeAtRad1, timeAtRad2) - utTime;
+                //log.buf.AppendFormat("time = {0}\n", time);
+
+                if (Double.IsNaN(time))
+                {
+                    str = "---s";
+                    //log.buf.AppendLine("time is NaN");
+                }
+                else
+                {
+                    str = TimeFormatter.ConvertToString(time);
+                    //log.buf.AppendFormat("str = {0}\n", str);
+                }
+            }
+            else
+            {
+                str = "---s";
+                //log.buf.AppendLine("no atmosphere or pe > atmosphere");
+            }
+
+            //log.Flush();
+            this.DrawLine(str, section.IsHud);
+        }
+
+        #endregion
+    }
+}

--- a/KerbalEngineer/Flight/Readouts/ReadoutLibrary.cs
+++ b/KerbalEngineer/Flight/Readouts/ReadoutLibrary.cs
@@ -91,6 +91,11 @@
                 readouts.Add(new NodeTimeToHalfBurn());
                 readouts.Add(new NodeAngleToPrograde());
                 readouts.Add(new NodeAngleToRetrograde());
+                readouts.Add(new PostBurnApoapsis());
+                readouts.Add(new PostBurnPeriapsis());
+                readouts.Add(new SpeedAtApoapsis());
+                readouts.Add(new SpeedAtPeriapsis());
+                readouts.Add(new TimeToAtmosphere());
 
                 // Surface
                 readouts.Add(new AltitudeSeaLevel());

--- a/KerbalEngineer/KerbalEngineer.csproj
+++ b/KerbalEngineer/KerbalEngineer.csproj
@@ -71,11 +71,21 @@
     <Compile Include="Flight\Readouts\Orbital\ManoeuvreNode\NodeAngleToPrograde.cs" />
     <Compile Include="Flight\Readouts\Orbital\ManoeuvreNode\NodeTotalDeltaV.cs" />
     <Compile Include="Flight\Readouts\Orbital\ManoeuvreNode\NodeProgradeDeltaV.cs" />
+    <Compile Include="Flight\Readouts\Orbital\ManoeuvreNode\PostBurnApoapsis.cs" />
+    <Compile Include="Flight\Readouts\Orbital\ManoeuvreNode\PostBurnPeriapsis.cs" />
     <Compile Include="Flight\Readouts\Orbital\MeanAnomalyAtEpoc.cs" />
     <Compile Include="Flight\Readouts\Orbital\MeanAnomaly.cs" />
     <Compile Include="Flight\Readouts\Orbital\EccentricAnomaly.cs" />
     <Compile Include="Flight\Readouts\Orbital\ArgumentOfPeriapsis.cs" />
     <Compile Include="Flight\Readouts\Orbital\CurrentSoi.cs" />
+    <Compile Include="Flight\Readouts\Orbital\SemiMajorAxis.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Flight\Readouts\Orbital\SpeedAtApoapsis.cs" />
+    <Compile Include="Flight\Readouts\Orbital\SpeedAtPeriapsis.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Flight\Readouts\Orbital\TimeToAtmosphere.cs" />
     <Compile Include="Flight\Readouts\Orbital\TrueAnomaly.cs" />
     <Compile Include="Flight\Readouts\Orbital\TimeToEquatorialAscendingNode.cs" />
     <Compile Include="Flight\Readouts\Orbital\TimeToEquatorialDescendingNode.cs" />
@@ -161,7 +171,6 @@
     <Compile Include="Flight\Readouts\Orbital\OrbitalPeriod.cs" />
     <Compile Include="Flight\Readouts\Orbital\OrbitalSpeed.cs" />
     <Compile Include="Flight\Readouts\Orbital\PeriapsisHeight.cs" />
-    <Compile Include="Flight\Readouts\Orbital\SemiMajorAxis.cs" />
     <Compile Include="Flight\Readouts\Orbital\SemiMinorAxis.cs" />
     <Compile Include="Flight\Readouts\Orbital\TimeToApoapsis.cs" />
     <Compile Include="Flight\Readouts\Orbital\TimeToPeriapsis.cs" />

--- a/KerbalEngineer/LogMsg.cs
+++ b/KerbalEngineer/LogMsg.cs
@@ -15,7 +15,8 @@
 
         public void Flush()
         {
-            MonoBehaviour.print(this.buf);
+            if (this.buf.Length > 0)
+                MonoBehaviour.print(this.buf);
             this.buf.Length = 0;
         }
     }

--- a/KerbalEngineer/VesselSimulator/Simulation.cs
+++ b/KerbalEngineer/VesselSimulator/Simulation.cs
@@ -30,6 +30,7 @@
 
 namespace KerbalEngineer.VesselSimulator
 {
+    using System.ComponentModel;
     using CompoundParts;
     using Extensions;
     using Helpers;
@@ -675,21 +676,28 @@
             for (int i = 0; i < this.allParts.Count; i++)
             {
                 PartSim part = this.allParts[i];
-                // If the part has a parent
-                if (part.parent != null)
-                {
-                    if (part.isNoPhysics)
-                    {
-                        if (part.parent.isNoPhysics && part.parent.parent != null)
-                        {
-                            part.baseMass = 0d;
-                            part.baseMassForCoM = 0d;
-                        }
-                        else
-                        {
-                            part.parent.baseMassForCoM += part.baseMassForCoM;
-                            part.baseMassForCoM = 0d;
-                        }
+
+                // Check if part should pass it's mass onto its parent.
+                if (part.isNoPhysics && part.parent != null)
+                {
+                    PartSim partParent = part.parent;
+
+                    // Loop through all parents until a physically significant parent is found.
+                    while (partParent != null)
+                    {
+                        // Check if parent is physically significant.
+                        if (partParent.isNoPhysics == false)
+                        {
+                            // Apply the mass to the parent and remove it from the originating part.
+                            partParent.baseMassForCoM += part.baseMassForCoM;
+                            part.baseMassForCoM = 0.0;
+
+                            // Break out of the recursive loop.
+                            break;
+                        }
+
+                        // Recursively loop through the parent parts.
+                        partParent = partParent.parent;
                     }
                 }
             }

 Binary files a/Output/KerbalEngineer/KerbalEngineer.dll and b/Output/KerbalEngineer/KerbalEngineer.dll differ