diff --git a/AirplaneWithRadar/ProjectAirplaneWithRadar/CollectionGenericObjects/AbstractCompany.cs b/AirplaneWithRadar/ProjectAirplaneWithRadar/CollectionGenericObjects/AbstractCompany.cs
index 958e664..7de004a 100644
--- a/AirplaneWithRadar/ProjectAirplaneWithRadar/CollectionGenericObjects/AbstractCompany.cs
+++ b/AirplaneWithRadar/ProjectAirplaneWithRadar/CollectionGenericObjects/AbstractCompany.cs
@@ -36,7 +36,7 @@ namespace ProjectAirplaneWithRadar.CollectionGenericObjects
         /// <summary>
         /// Вычисление максимального количества элементов, который можно разместить в окне
         /// </summary>
-        private int GetMaxCount => _pictureWidth * _pictureHeight / (_placeSizeWidth * _placeSizeHeight);
+        private int GetMaxCount => _pictureWidth / _placeSizeWidth * (_pictureHeight / _placeSizeHeight);
 
         /// <summary>
         /// Конструктор
diff --git a/AirplaneWithRadar/ProjectAirplaneWithRadar/CollectionGenericObjects/MassiveGenericObjects.cs b/AirplaneWithRadar/ProjectAirplaneWithRadar/CollectionGenericObjects/MassiveGenericObjects.cs
index 2e77036..859797c 100644
--- a/AirplaneWithRadar/ProjectAirplaneWithRadar/CollectionGenericObjects/MassiveGenericObjects.cs
+++ b/AirplaneWithRadar/ProjectAirplaneWithRadar/CollectionGenericObjects/MassiveGenericObjects.cs
@@ -74,7 +74,7 @@ namespace ProjectAirplaneWithRadar.CollectionGenericObjects
 
         public int Insert(T obj, int position)
         {
-            if (position < 0 || position >= Count)
+            if (position >= Count || position < 0)
                 throw new PositionOutOfCollectionException(position);
 
             if (_collection[position] == null)
diff --git a/AirplaneWithRadar/ProjectAirplaneWithRadar/CollectionGenericObjects/PlaneSharingService.cs b/AirplaneWithRadar/ProjectAirplaneWithRadar/CollectionGenericObjects/PlaneSharingService.cs
index 46c739a..0ad8986 100644
--- a/AirplaneWithRadar/ProjectAirplaneWithRadar/CollectionGenericObjects/PlaneSharingService.cs
+++ b/AirplaneWithRadar/ProjectAirplaneWithRadar/CollectionGenericObjects/PlaneSharingService.cs
@@ -58,7 +58,6 @@ namespace ProjectAirplaneWithRadar.CollectionGenericObjects
                 {
                     break;
                 }
-
             }
         }
     }
diff --git a/AirplaneWithRadar/ProjectAirplaneWithRadar/FormAirplaneCollection.Designer.cs b/AirplaneWithRadar/ProjectAirplaneWithRadar/FormAirplaneCollection.Designer.cs
index 79d7649..0f8f332 100644
--- a/AirplaneWithRadar/ProjectAirplaneWithRadar/FormAirplaneCollection.Designer.cs
+++ b/AirplaneWithRadar/ProjectAirplaneWithRadar/FormAirplaneCollection.Designer.cs
@@ -66,9 +66,9 @@
             groupBoxTools.Controls.Add(panelStorage);
             groupBoxTools.Controls.Add(comboBoxSelectorCompany);
             groupBoxTools.Dock = DockStyle.Right;
-            groupBoxTools.Location = new Point(883, 24);
+            groupBoxTools.Location = new Point(445, 24);
             groupBoxTools.Name = "groupBoxTools";
-            groupBoxTools.Size = new Size(206, 583);
+            groupBoxTools.Size = new Size(206, 523);
             groupBoxTools.TabIndex = 0;
             groupBoxTools.TabStop = false;
             groupBoxTools.Text = "Инструменты";
@@ -82,7 +82,7 @@
             panelCompanyTools.Controls.Add(buttonGoToCheck);
             panelCompanyTools.Dock = DockStyle.Bottom;
             panelCompanyTools.Enabled = false;
-            panelCompanyTools.Location = new Point(3, 393);
+            panelCompanyTools.Location = new Point(3, 333);
             panelCompanyTools.Name = "panelCompanyTools";
             panelCompanyTools.Size = new Size(200, 187);
             panelCompanyTools.TabIndex = 8;
@@ -249,7 +249,7 @@
             pictureBox.Dock = DockStyle.Fill;
             pictureBox.Location = new Point(0, 24);
             pictureBox.Name = "pictureBox";
-            pictureBox.Size = new Size(883, 583);
+            pictureBox.Size = new Size(445, 523);
             pictureBox.TabIndex = 1;
             pictureBox.TabStop = false;
             // 
@@ -258,7 +258,7 @@
             menuStrip.Items.AddRange(new ToolStripItem[] { файлToolStripMenuItem });
             menuStrip.Location = new Point(0, 0);
             menuStrip.Name = "menuStrip";
-            menuStrip.Size = new Size(1089, 24);
+            menuStrip.Size = new Size(651, 24);
             menuStrip.TabIndex = 2;
             menuStrip.Text = "menuStrip";
             // 
@@ -297,7 +297,7 @@
             // 
             AutoScaleDimensions = new SizeF(7F, 15F);
             AutoScaleMode = AutoScaleMode.Font;
-            ClientSize = new Size(1089, 607);
+            ClientSize = new Size(651, 547);
             Controls.Add(pictureBox);
             Controls.Add(groupBoxTools);
             Controls.Add(menuStrip);
diff --git a/AirplaneWithRadar/ProjectAirplaneWithRadar/FormAirplaneCollection.cs b/AirplaneWithRadar/ProjectAirplaneWithRadar/FormAirplaneCollection.cs
index d07f993..f91062e 100644
--- a/AirplaneWithRadar/ProjectAirplaneWithRadar/FormAirplaneCollection.cs
+++ b/AirplaneWithRadar/ProjectAirplaneWithRadar/FormAirplaneCollection.cs
@@ -78,10 +78,10 @@ namespace ProjectAirplaneWithRadar
                     _logger.LogInformation("Добавлен объект: {0}", airplane.GetDataForSave());
                 }
             }
-            catch
+            catch (CollectionOverflowException ex)
             {
-                MessageBox.Show("Не удалось добавить объект");
-                _logger.LogError("Ошибка: В коллекции превышено допустимое количество");
+                MessageBox.Show(ex.Message);
+                _logger.LogError("Ошибка: {Message}", ex.Message);
             }         
         }