класс

ProjectStormtrooper/CollectionGenericObjects/AbstractCompany.cs

@@ -15,7 +15,7 @@ public abstract class AbstractCompany
     /// <summary>
     /// Размер места (высота)
     /// </summary>
-    protected readonly int _placeSizeHeight = 100;
+    protected readonly int _placeSizeHeight = 120;
 
     /// <summary>
     /// Ширина окна

ProjectStormtrooper/CollectionGenericObjects/MassiveGenericObjects.cs

@@ -10,7 +10,23 @@ public class MassiveGenericObjects<T> : ICollectionGenericObjects<T>
 	/// </summary>
 	private T?[] _collection;
     public int Count => _collection.Length;
-    public int SetMaxCount { set { if (value > 0) { _collection = new T?[value]; } } }
+    public int SetMaxCount
+    {
+        set
+        {
+            if (value > 0)
+            {
+                if (_collection.Length > 0)
+                {
+                    Array.Resize(ref _collection, value);
+                }
+                else
+                {
+                    _collection = new T?[value];
+                }
+            }
+        }
+    }
 
     /// <summary>
     /// Конструктор

ProjectStormtrooper/FormAirplaneCollection.Designer.cs

@@ -173,7 +173,6 @@
             panelStorage.Controls.Add(radioButtonMassive);
             panelStorage.Controls.Add(textBoxCollectionName);
             panelStorage.Controls.Add(labelCollectionName);
-            panelStorage.Controls.Add(comboBoxSelectorCompany);
             panelStorage.Dock = DockStyle.Top;
             panelStorage.Location = new Point(3, 24);
             panelStorage.Name = "panelStorage";