diff --git a/AirBomber/AirBomber/AirplaneArrowEngines.cs b/AirBomber/AirBomber/AirplaneArrowEngines.cs
new file mode 100644
index 0000000..3eba788
--- /dev/null
+++ b/AirBomber/AirBomber/AirplaneArrowEngines.cs
@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AirBomber
+{
+    internal class AirplaneArrowEngines : DrawningAirplaneEngines
+    {
+        protected override void DrawEngine(Graphics g, Color colorAirplane, RectangleF rectAroundEngine)
+        {
+            var x = rectAroundEngine.X + rectAroundEngine.Width / 4;
+            g.FillPolygon(new SolidBrush(colorAirplane), new PointF[]
+            {
+                new PointF(rectAroundEngine.Left, rectAroundEngine.Top + rectAroundEngine.Height / 2),
+                new PointF(x, rectAroundEngine.Top),
+                new PointF(x, rectAroundEngine.Bottom),
+            });
+            int margin = 2;
+            g.FillRectangle(new SolidBrush(colorAirplane), 
+                x                         , rectAroundEngine.Top + margin, 
+                rectAroundEngine.Right - x, rectAroundEngine.Height - margin * 2);
+        }
+    }
+}
diff --git a/AirBomber/AirBomber/AirplaneRectEngines.cs b/AirBomber/AirBomber/AirplaneRectEngines.cs
new file mode 100644
index 0000000..a23dd24
--- /dev/null
+++ b/AirBomber/AirBomber/AirplaneRectEngines.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AirBomber
+{
+    internal class AirplaneRectEngines : DrawningAirplaneEngines
+    {
+        protected override void DrawEngine(Graphics g, Color colorAirplane, RectangleF rectAroundEngine)
+        {
+            g.FillRectangle(new SolidBrush(colorAirplane), rectAroundEngine);
+            g.FillRectangle(new SolidBrush(Color.Black), 
+                rectAroundEngine.Left, rectAroundEngine.Top, rectAroundEngine.Width / 4, rectAroundEngine.Height);
+        }
+    }
+}
diff --git a/AirBomber/AirBomber/DrawningAirplaneEngines.cs b/AirBomber/AirBomber/DrawningAirplaneEngines.cs
index 2fe3e1b..23d5585 100644
--- a/AirBomber/AirBomber/DrawningAirplaneEngines.cs
+++ b/AirBomber/AirBomber/DrawningAirplaneEngines.cs
@@ -37,7 +37,7 @@ namespace AirBomber
             }
         }
 
-        private void DrawEngine(Graphics g, Color colorAirplane, RectangleF rectAroundEngine)
+        protected virtual void DrawEngine(Graphics g, Color colorAirplane, RectangleF rectAroundEngine)
         {
             g.FillEllipse(new SolidBrush(colorAirplane), rectAroundEngine);
             g.FillEllipse(new SolidBrush(Color.Black),