diff --git a/AirplaneWithRadar/AirplaneWithRadar/DrawingAirplane.cs b/AirplaneWithRadar/AirplaneWithRadar/DrawingAirplane.cs
index ebfa28c..595109c 100644
--- a/AirplaneWithRadar/AirplaneWithRadar/DrawingAirplane.cs
+++ b/AirplaneWithRadar/AirplaneWithRadar/DrawingAirplane.cs
@@ -10,7 +10,7 @@ namespace AirplaneWithRadar
         /// Класс-сущность
         /// </summary>
         public EntityAirplane Airplane { private set; get; }
-        public DrawningAirplanePortholes DrawningPortholes { get; private set; }
+        public IAirplanePortholes DrawningPortholes { get; private set; }
         /// <summary>
         /// Левая координата отрисовки самолёта
         /// </summary>
@@ -41,12 +41,10 @@ namespace AirplaneWithRadar
         /// <param name="speed">Скорость</param>
         /// <param name="weight">Вес</param>
         /// <param name="bodyColor">Цвет</param>
-        public void Init(int speed, float weight, Color bodyColor)
+        public DrawningAirplane(int speed, float weight, Color bodyColor, IAirplanePortholes typeAirplanePortholes)
         {
-            Airplane = new EntityAirplane();
-            Airplane.Init(speed, weight, bodyColor);
-            DrawningPortholes = new();
-            DrawningPortholes.CountPortholes = 10;
+            Airplane = new EntityAirplane(speed, weight, bodyColor);
+            DrawningPortholes = typeAirplanePortholes;
         }
         /// <summary>
         /// Установка позиции
diff --git a/AirplaneWithRadar/AirplaneWithRadar/DrawningAirplanePortholes.cs b/AirplaneWithRadar/AirplaneWithRadar/DrawningAirplanePortholes.cs
index 2c94173..dab8f7f 100644
--- a/AirplaneWithRadar/AirplaneWithRadar/DrawningAirplanePortholes.cs
+++ b/AirplaneWithRadar/AirplaneWithRadar/DrawningAirplanePortholes.cs
@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 
 namespace AirplaneWithRadar
 {
-    internal class DrawningAirplanePortholes
+    internal class DrawningAirplanePortholes : IAirplanePortholes
     {
         private CountPortholes _countPortholes;
 
@@ -33,7 +33,7 @@ namespace AirplaneWithRadar
             }
         }
 
-        private void DrawPorthole(Graphics g, int _startPosX, int _startPosY)
+        protected virtual void DrawPorthole(Graphics g, int _startPosX, int _startPosY)
         {
             Pen pen = new(Color.Black);
             g.DrawRectangle(pen, _startPosX, _startPosY, 2, 2);
diff --git a/AirplaneWithRadar/AirplaneWithRadar/DrawningDeltaPortholes.cs b/AirplaneWithRadar/AirplaneWithRadar/DrawningDeltaPortholes.cs
new file mode 100644
index 0000000..08f62aa
--- /dev/null
+++ b/AirplaneWithRadar/AirplaneWithRadar/DrawningDeltaPortholes.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AirplaneWithRadar
+{
+    internal class DrawningDeltaPortholes : DrawningAirplanePortholes
+    {
+        protected override void DrawPorthole(Graphics g, int _startPosX, int _startPosY)
+        {
+            Pen pen = new (Color.Black);
+            PointF[] point = new PointF[3];
+            point[0] = new PointF(_startPosX, _startPosY);
+            point[1] = new PointF(_startPosX-2, _startPosY+2);
+            point[2] = new PointF(_startPosX + 2, _startPosY + 2);
+            g.DrawPolygon(pen, point);
+        }
+    }
+}
diff --git a/AirplaneWithRadar/AirplaneWithRadar/DrawningRhombusPortholes.cs b/AirplaneWithRadar/AirplaneWithRadar/DrawningRhombusPortholes.cs
new file mode 100644
index 0000000..0ba844c
--- /dev/null
+++ b/AirplaneWithRadar/AirplaneWithRadar/DrawningRhombusPortholes.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AirplaneWithRadar
+{
+    internal class DrawningRhombusPortholes : DrawningAirplanePortholes
+    {
+        protected override void DrawPorthole(Graphics g, int _startPosX, int _startPosY)
+        {
+            Pen pen = new(Color.Black);
+            PointF[] point = new PointF[4];
+            point[0] = new PointF(_startPosX, _startPosY);
+            point[1] = new PointF(_startPosX - 2, _startPosY + 2);
+            point[2] = new PointF(_startPosX, _startPosY + 4);
+            point[3] = new PointF(_startPosX + 2, _startPosY + 2);
+            g.DrawPolygon(pen, point);
+        }
+    }
+}
\ No newline at end of file
diff --git a/AirplaneWithRadar/AirplaneWithRadar/EntityAirplane.cs b/AirplaneWithRadar/AirplaneWithRadar/EntityAirplane.cs
index ef80d96..4682efc 100644
--- a/AirplaneWithRadar/AirplaneWithRadar/EntityAirplane.cs
+++ b/AirplaneWithRadar/AirplaneWithRadar/EntityAirplane.cs
@@ -29,7 +29,7 @@ namespace AirplaneWithRadar
         /// <param name="weight"></param>
         /// <param name="bodyColor"></param>
         /// <returns></returns>
-        public void Init(int speed, float weight, Color bodyColor)
+        public EntityAirplane(int speed, float weight, Color bodyColor)
         {
             Random rnd = new();
             Speed = speed <= 0 ? rnd.Next(50, 150) : speed;
diff --git a/AirplaneWithRadar/AirplaneWithRadar/FormAirplane.Designer.cs b/AirplaneWithRadar/AirplaneWithRadar/FormAirplane.Designer.cs
index d8cf5c7..18ba5a1 100644
--- a/AirplaneWithRadar/AirplaneWithRadar/FormAirplane.Designer.cs
+++ b/AirplaneWithRadar/AirplaneWithRadar/FormAirplane.Designer.cs
@@ -40,6 +40,7 @@
             this.buttonRight = new System.Windows.Forms.Button();
             this.labelPortholes = new System.Windows.Forms.Label();
             this.comboBoxPortholes = new System.Windows.Forms.ComboBox();
+            this.comboBoxTypePortholes = new System.Windows.Forms.ComboBox();
             this.statusStrip1.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)(this.pictureBoxAirplane)).BeginInit();
             this.SuspendLayout();
@@ -94,7 +95,7 @@
             this.buttonCreate.TabIndex = 2;
             this.buttonCreate.Text = "Создать";
             this.buttonCreate.UseVisualStyleBackColor = true;
-            this.buttonCreate.Click += new System.EventHandler(this.buttonCreate_Click);
+            this.buttonCreate.Click += new System.EventHandler(this.ButtonCreate_Click);
             // 
             // buttonUp
             // 
@@ -166,11 +167,25 @@
             this.comboBoxPortholes.TabIndex = 8;
             this.comboBoxPortholes.Text = "10";
             // 
+            // comboBoxTypePortholes
+            // 
+            this.comboBoxTypePortholes.FormattingEnabled = true;
+            this.comboBoxTypePortholes.Items.AddRange(new object[] {
+            "Квадратные",
+            "Треугольные",
+            "Ромбовидные"});
+            this.comboBoxTypePortholes.Location = new System.Drawing.Point(12, 338);
+            this.comboBoxTypePortholes.Name = "comboBoxTypePortholes";
+            this.comboBoxTypePortholes.Size = new System.Drawing.Size(121, 23);
+            this.comboBoxTypePortholes.TabIndex = 9;
+            this.comboBoxTypePortholes.Text = "Квадратные";
+            // 
             // FormAirplane
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
             this.ClientSize = new System.Drawing.Size(800, 450);
+            this.Controls.Add(this.comboBoxTypePortholes);
             this.Controls.Add(this.comboBoxPortholes);
             this.Controls.Add(this.labelPortholes);
             this.Controls.Add(this.buttonRight);
@@ -204,5 +219,6 @@
         private Button buttonRight;
         private Label labelPortholes;
         private ComboBox comboBoxPortholes;
+        private ComboBox comboBoxTypePortholes;
     }
 }
\ No newline at end of file
diff --git a/AirplaneWithRadar/AirplaneWithRadar/FormAirplane.cs b/AirplaneWithRadar/AirplaneWithRadar/FormAirplane.cs
index f980d42..f505933 100644
--- a/AirplaneWithRadar/AirplaneWithRadar/FormAirplane.cs
+++ b/AirplaneWithRadar/AirplaneWithRadar/FormAirplane.cs
@@ -27,11 +27,20 @@ namespace AirplaneWithRadar
         /// <param name="e"></param>
         /// 
 
-        private void buttonCreate_Click(object sender, EventArgs e)
+        private void ButtonCreate_Click(object sender, EventArgs e)
         {
+            IAirplanePortholes typeAirplanePortholes = new DrawningAirplanePortholes();
+            switch (comboBoxTypePortholes.Text)
+            {
+                case "�����������":
+                    typeAirplanePortholes = new DrawningDeltaPortholes();
+                    break;
+                case "�����������":
+                    typeAirplanePortholes = new DrawningRhombusPortholes();
+                    break;
+            }
             Random rnd = new();
-            _airplane = new DrawningAirplane();
-            _airplane.Init(rnd.Next(100, 300), rnd.Next(1000, 2000), Color.FromArgb(rnd.Next(0, 256), rnd.Next(0, 256), rnd.Next(0, 256)));
+            _airplane = new DrawningAirplane(rnd.Next(100, 300), rnd.Next(1000, 2000), Color.FromArgb(rnd.Next(0, 256), rnd.Next(0, 256), rnd.Next(0, 256)), typeAirplanePortholes);
             _airplane.DrawningPortholes.CountPortholes = Convert.ToInt32(comboBoxPortholes.Text);
             _airplane.SetPosition(rnd.Next(20, 100), rnd.Next(20, 100), pictureBoxAirplane.Width, pictureBoxAirplane.Height);
             toolStripStatusLabelSpeed.Text = $"��������: {_airplane.Airplane.Speed}";
@@ -76,5 +85,6 @@ namespace AirplaneWithRadar
             _airplane?.ChangeBorders(pictureBoxAirplane.Width, pictureBoxAirplane.Height);
             Draw();
         }
+
     }
 }
\ No newline at end of file
diff --git a/AirplaneWithRadar/AirplaneWithRadar/IAirplanePortholes.cs b/AirplaneWithRadar/AirplaneWithRadar/IAirplanePortholes.cs
new file mode 100644
index 0000000..d41a5d3
--- /dev/null
+++ b/AirplaneWithRadar/AirplaneWithRadar/IAirplanePortholes.cs
@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AirplaneWithRadar
+{
+    internal interface IAirplanePortholes
+    {
+        int CountPortholes { set; }
+        public void DrawPortholes(Graphics g, int _startPosX, int _startPosY, int _airplaneWidth);
+    }
+}