diff --git a/AirFighter/AirFighter/DrawningObjectAirFighter.cs b/AirFighter/AirFighter/DrawningObjectAirFighter.cs
index 4b73d56..1df156f 100644
--- a/AirFighter/AirFighter/DrawningObjectAirFighter.cs
+++ b/AirFighter/AirFighter/DrawningObjectAirFighter.cs
@@ -38,5 +38,53 @@ namespace AirFighter
         public string GetInfo() => _airFighter?.GetDataForSave();
 
         public static IDrawningObject Create(string data) => new DrawningObjectAirFighter(data.CreateDrawningCar());
+
+        public bool Equals(IDrawningObject? other)
+        {
+            if (other == null)
+            {
+                return false;
+            }
+            var otherAirFighter = other as DrawningObjectAirFighter;
+            if (otherAirFighter == null)
+            {
+                return false;
+            }
+            var airFighter = _airFighter.AirFighter;
+            var otherAirFighterAirFighter = otherAirFighter._airFighter.AirFighter;
+            if (airFighter.Speed != otherAirFighterAirFighter.Speed)
+            {
+                return false;
+            }
+            if (airFighter.Weight != otherAirFighterAirFighter.Weight)
+            {
+                return false;
+            }
+            if (airFighter.BodyColor != otherAirFighterAirFighter.BodyColor)
+            {
+                return false;
+            }
+            // TODO доделать проверки в случае продвинутого объекта
+            if(airFighter is EntityUpgradeAirFighter upgradeAirFighter && otherAirFighterAirFighter is EntityUpgradeAirFighter upgradeOtherAirFighter)
+            {
+                if(upgradeAirFighter.DopWing != upgradeOtherAirFighter.DopWing)
+                {
+                    return false;
+                }
+                if(upgradeAirFighter.Rocket != upgradeAirFighter.Rocket)
+                {
+                    return false;
+                }
+                if(upgradeAirFighter.DopColor != upgradeOtherAirFighter.DopColor)
+                {
+                    return false;
+                }
+            }else if(airFighter is EntityUpgradeAirFighter || otherAirFighterAirFighter is EntityUpgradeAirFighter)
+            {
+                return false;
+            }
+            return true;
+
+        }
     }
 }
diff --git a/AirFighter/AirFighter/IDrawningObject.cs b/AirFighter/AirFighter/IDrawningObject.cs
index 5f09481..5618dcd 100644
--- a/AirFighter/AirFighter/IDrawningObject.cs
+++ b/AirFighter/AirFighter/IDrawningObject.cs
@@ -9,7 +9,7 @@ namespace AirFighter
     /// <summary>
     /// Интерфейс для работы с объектом, прорисовываемым на форме
     /// </summary>
-    internal interface IDrawningObject
+    internal interface IDrawningObject : IEquatable<IDrawningObject>
     {
         /// <summary>
         /// Шаг перемещения объекта
diff --git a/AirFighter/AirFighter/MapWithSetAirFightersGeneric.cs b/AirFighter/AirFighter/MapWithSetAirFightersGeneric.cs
index 47afcee..9453783 100644
--- a/AirFighter/AirFighter/MapWithSetAirFightersGeneric.cs
+++ b/AirFighter/AirFighter/MapWithSetAirFightersGeneric.cs
@@ -12,7 +12,7 @@ namespace AirFighter
     /// <typeparam name="T"></typeparam>
     /// <typeparam name="U"></typeparam>
     internal class MapWithSetAirFightersGeneric<T, U>
-        where T : class, IDrawningObject
+        where T : class, IDrawningObject, IEquatable<T>
         where U : AbstractMap
     {
         /// <summary>
diff --git a/AirFighter/AirFighter/SetAirFightersGeneric.cs b/AirFighter/AirFighter/SetAirFightersGeneric.cs
index fbc5f64..5a77f0b 100644
--- a/AirFighter/AirFighter/SetAirFightersGeneric.cs
+++ b/AirFighter/AirFighter/SetAirFightersGeneric.cs
@@ -12,7 +12,7 @@ namespace AirFighter
     /// </summary>
     /// <typeparam name="T"></typeparam>
     internal class SetAirFightersGeneric<T>
-        where T: class
+        where T: class, IEquatable<T>
     {
         /// <summary>
         /// Список объектов, которые храним
@@ -52,6 +52,10 @@ namespace AirFighter
         /// <returns></returns>
         public int Insert(T airFighter, int position)
         {
+            if (_places.Contains(airFighter))
+            {
+                throw new ArgumentException("Элемент с такими характеристиками существует в хранилище");
+            }
             if (Count >= _maxCount)
             {
                 throw new StorageOverflowException();