--- a/VOID.csproj
+++ b/VOID.csproj
@@ -94,6 +94,7 @@
     <Compile Include="VOID_Localization.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="VOID_HUDAdvanced.cs" />
+    <Compile Include="VOID_EditorTWR.cs" />
   </ItemGroup>
   <ProjectExtensions>
     <MonoDevelop>

--- /dev/null
+++ b/VOID_EditorTWR.cs
@@ -1,1 +1,150 @@
+// VOID © 2014 toadicus
+//
+// This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a
+// copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/
 
+using KSP;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using ToadicusTools;
+using UnityEngine;
+
+namespace VOID
+{
+	public class VOID_EditorTWR : VOID_WindowModule, IVOID_EditorModule
+	{
+		private Dictionary<string, double> bodyGeeValues;
+		private List<CelestialBody> sortedBodyList;
+
+		public VOID_EditorTWR() : base()
+		{
+			this._Name = "IP Thrust-to-Weight Ratios";
+		}
+
+		public override void ModuleWindow(int _)
+		{
+			if (bodyGeeValues == null)
+			{
+				if (FlightGlobals.ready && FlightGlobals.Bodies != null && FlightGlobals.Bodies.Count > 0)
+				{
+					this.bodyGeeValues = new Dictionary<string, double>();
+
+					foreach (CelestialBody body in FlightGlobals.Bodies)
+					{
+						this.bodyGeeValues[body.name] = body.GeeASL;
+					}
+
+					this.sortedBodyList = new List<CelestialBody>(FlightGlobals.Bodies);
+					this.sortedBodyList.Sort(new CBListComparer());
+					this.sortedBodyList.Reverse();
+
+					Debug.Log(string.Format("sortedBodyList: {0}", string.Join("\n\t", this.sortedBodyList.Select(b => b.bodyName).ToArray())));
+				}
+				else
+				{
+					return;
+				}
+			}
+
+			GUILayout.BeginVertical();
+
+			foreach (CelestialBody body in this.sortedBodyList)
+			{
+				Tools.PostDebugMessage(this, "Doing label for {0}", body.bodyName);
+				GUILayout.BeginHorizontal();
+
+				GUILayout.Label(body.bodyName);
+				GUILayout.FlexibleSpace();
+				GUILayout.Label(
+					(VOID_Data.currThrustWeight.Value / this.bodyGeeValues[body.bodyName]).ToString("#.0##"),
+					GUILayout.ExpandWidth(true)
+				);
+
+				GUILayout.EndHorizontal();
+			}
+
+			GUILayout.EndVertical();
+		}
+	}
+
+	public class CBListComparer : IComparer<CelestialBody>
+	{
+		public int Compare(CelestialBody bodyA, CelestialBody bodyB)
+		{
+			Tools.PostDebugMessage(this, "got bodyA: {0} & bodyB: {1}", bodyA, bodyB);
+
+			if (bodyA == null && bodyB == null)
+			{
+				Tools.PostDebugMessage(this, "both bodies are null, returning 0");
+				return 0;
+			}
+			if (bodyA == null)
+			{
+				Tools.PostDebugMessage(this, "bodyA is null, returning -1");
+				return -1;
+			}
+			if (bodyB == null)
+			{
+				Tools.PostDebugMessage(this, "bodyB is null, returning 1");
+				return 1;
+			}
+
+			Tools.PostDebugMessage(this, "bodies are not null, carrying on");
+
+			if (object.ReferenceEquals(bodyA, bodyB))
+			{
+				Tools.PostDebugMessage(this, "bodies are equal, returning 0");
+				return 0;
+			}
+
+			Tools.PostDebugMessage(this, "bodies are not equal, carrying on");
+
+			if (bodyA.orbitDriver == null)
+			{
+				Tools.PostDebugMessage(this, "bodyA.orbit is null (bodyA is the sun, returning 1");
+				return 1;
+			}
+			if (bodyB.orbitDriver == null)
+			{
+				Tools.PostDebugMessage(this, "bodyB.orbit is null (bodyB is the sun, returning -1");
+				return -1;
+			}
+
+			Tools.PostDebugMessage(this, "orbits are not null, carrying on");
+
+			if (bodyA.orbit.referenceBody == bodyB.orbit.referenceBody)
+			{
+				Tools.PostDebugMessage(this, "bodies share a parent, comparing SMAs");
+				return -bodyA.orbit.semiMajorAxis.CompareTo(bodyB.orbit.semiMajorAxis);
+			}
+
+			Tools.PostDebugMessage(this, "orbits do not share a parent, carrying on");
+
+			if (bodyA.hasAncestor(bodyB))
+			{
+				Tools.PostDebugMessage(this, "bodyA is a moon or sub-moon of bodyB, returning -1");
+				return -1;
+			}
+			if (bodyB.hasAncestor(bodyA))
+			{
+				Tools.PostDebugMessage(this, "bodyA is a moon or sub-moon of bodyB, returning 1");
+				return 1;
+			}
+
+			Tools.PostDebugMessage(this, "bodies do not have an obvious relationship, searching for one");
+
+			if (VOID_Tools.NearestRelatedParents(ref bodyA, ref bodyB))
+			{
+				Tools.PostDebugMessage(this, "good relation {0} and {1}, comparing", bodyA.bodyName, bodyB.bodyName);
+				return this.Compare(bodyA, bodyB);
+			}
+
+			Tools.PostDebugMessage(this, "bad relation {0} and {1}, giving up", bodyA.bodyName, bodyB.bodyName);
+
+			return 0;
+		}
+	}
+}
+
+