Planes, kinda. They don't fly.

OpenRa.Game/OpenRa.Game.csproj

@@ -143,6 +143,7 @@
     <Compile Include="Traits\RenderBuildingWarFactory.cs" />
     <Compile Include="Traits\RenderSimple.cs" />
     <Compile Include="Traits\RenderUnit.cs" />
+    <Compile Include="Traits\RenderUnitRotor.cs" />
     <Compile Include="Traits\RenderUnitTurreted.cs" />
     <Compile Include="Traits\TraitsInterfaces.cs" />
     <Compile Include="Traits\Tree.cs" />

OpenRa.Game/Traits/RenderUnitRotor.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using IjwFramework.Types;
+using OpenRa.Game.Graphics;
+
+namespace OpenRa.Game.Traits
+{
+	class RenderUnitRotor : RenderUnit
+	{
+		public Animation rotorAnim;
+
+		public RenderUnitRotor( Actor self )
+			: base(self)
+		{
+			rotorAnim = new Animation(self.unitInfo.Name);
+			rotorAnim.PlayRepeating("rotor");
+		}
+
+		public override IEnumerable<Pair<Sprite, float2>> Render(Actor self)
+		{
+			var mobile = self.traits.Get<Mobile>();
+
+			yield return Util.Centered(anim.Image, self.CenterLocation);
+			yield return Util.Centered(rotorAnim.Image, self.CenterLocation 
+				+ Util.GetTurretPosition(self, self.unitInfo.PrimaryOffset, 0));
+			if (self.unitInfo.SecondaryOffset != null)
+				yield return Util.Centered(rotorAnim.Image, self.CenterLocation
+					+ Util.GetTurretPosition(self, self.unitInfo.SecondaryOffset, 0));
+		}
+
+		public override void Tick(Actor self)
+		{
+			base.Tick(self);
+			rotorAnim.Tick();
+		}
+	}
+}