diff --git a/ProjectBulldozer/DrawningBulldozer.cs b/ProjectBulldozer/DrawningBulldozer.cs
index 0bf3ce8..7bb92b0 100644
--- a/ProjectBulldozer/DrawningBulldozer.cs
+++ b/ProjectBulldozer/DrawningBulldozer.cs
@@ -1,5 +1,7 @@
 
 
+using ProjectBulldozer.Entities;
+
 namespace ProjectBulldozer
 {
     internal class DrawningBulldozer
diff --git a/ProjectBulldozer/Entities/EntityBulldozer.cs b/ProjectBulldozer/Entities/EntityBulldozer.cs
new file mode 100644
index 0000000..f65c2a9
--- /dev/null
+++ b/ProjectBulldozer/Entities/EntityBulldozer.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectBulldozer.Entities
+{
+    public class EntityBulldozer : EntityTractor
+    {
+        public Color AdditionalColor { get; private set; }
+        public bool Otval { get; private set; }
+        public bool SeifBatteries { get; private set; }
+        public EntityBulldozer(int speed, double weight, Color bodyColor, Color additionalColor, bool otval,
+            bool seifBatteries) : base(speed, weight, bodyColor)
+        {
+            AdditionalColor = additionalColor;
+            Otval = otval;
+            SeifBatteries = seifBatteries;
+        }
+    }
+}
diff --git a/ProjectBulldozer/Entities/EntityTractor.cs b/ProjectBulldozer/Entities/EntityTractor.cs
new file mode 100644
index 0000000..2db9318
--- /dev/null
+++ b/ProjectBulldozer/Entities/EntityTractor.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectBulldozer.Entities
+{
+    public class EntityTractor
+    {
+        public int Speed { get; private set; }
+        public double Weight { get; private set; }
+        public Color BodyColor { get; private set; }
+        public double Step => (double)Speed * 100 / Weight;
+        public EntityTractor(int speed, double weight, Color bodyColor)
+        {
+            Speed = speed;
+            Weight = weight;
+            BodyColor = bodyColor;
+        }
+    }
+}
diff --git a/ProjectBulldozer/EntityBulldozer.cs b/ProjectBulldozer/EntityBulldozer.cs
deleted file mode 100644
index eb451d9..0000000
--- a/ProjectBulldozer/EntityBulldozer.cs
+++ /dev/null
@@ -1,43 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace ProjectBulldozer
-{
-    public class EntityBulldozer
-    {
-
-
-        public int Speed { get; private set; }
-        public double Weight { get; private set; }
-        public Color BodyColor { get; private set; }
-        public Color AdditionalColor { get; private set; }
-        public bool AdditionalEngine { get; private set; }
-        public bool AdditionalCompartment { get; private set; }
-        public double Step => (double)Speed * 240 / Weight;
-
-
-        /// <summary>
-        /// Инициализация полей объекта-класса бульдозера
-        /// </summary>
-        /// <param name="speed">Скорость</param>
-        /// <param name="weight">Вес бульдозера</param>
-        /// <param name="bodyColor">Основной цвет</param>
-        /// <param name="additionalColor">Дополнительный цвет</param>
-        /// <param name="additionalEngine">Признак наличия дополнительного катка</param>
-        /// <param name="additionalCompartment">Признак наличия гусениц</param>
-        public void Init(int speed, double weight, Color bodyColor, Color
-        additionalColor, bool additionalEngine, bool additionalCompartment)
-        {
-            Speed = speed;
-            Weight = weight;
-            BodyColor = bodyColor;
-            AdditionalEngine = additionalEngine;
-            AdditionalColor = additionalColor;
-
-            AdditionalCompartment = additionalCompartment;
-        }
-    }
-}