diff --git a/WrightBrothersApi/Controllers/PlanesController.cs b/WrightBrothersApi/Controllers/PlanesController.cs
index aaa665e..a381578 100644
--- a/WrightBrothersApi/Controllers/PlanesController.cs
+++ b/WrightBrothersApi/Controllers/PlanesController.cs
@@ -21,26 +21,41 @@ public PlanesController(ILogger<PlanesController> logger)
                 Id = 1,
                 Name = "Wright Flyer",
                 Year = 1903,
-                Description = "The first successful heavier-than-air powered aircraft."
+                Description = "The first successful heavier-than-air powered aircraft.",
+                RangeInKm = 12,
+                ImageUrl = "https://upload.wikimedia.org/wikipedia/commons/8/8d/Wright_Flyer.jpg"
             },
             new Plane
             {
                 Id = 2,
                 Name = "Wright Flyer II",
                 Year = 1904,
-                Description = "A refinement of the original Flyer with better performance."
+                Description = "A refinement of the original Flyer with better performance.",
+                RangeInKm = 24,
+                ImageUrl = "https://upload.wikimedia.org/wikipedia/commons/8/8d/Wright_Flyer.jpg"
             },
+            new Plane
+            {
+                Id = 3,
+                Name = "Wright Flyer III",
+                Year = 1905,
+                Description = "The first fully controllable Flyer.",
+                RangeInKm = 39,
+                ImageUrl = "https://upload.wikimedia.org/wikipedia/commons/8/8d/Wright_Flyer.jpg"
+            }
         };
 
         [HttpGet]
         public ActionResult<List<Plane>> Get()
         {
+            Console.WriteLine("GET /planes");
             return Planes;
         }
 
         [HttpGet("{id}")]
         public ActionResult<Plane> Get(int id)
         {
+            Console.WriteLine($"GET /plane with Id = [{id}]");
             var plane = Planes.Find(p => p.Id == id);
 
             if (plane == null)
@@ -54,9 +69,54 @@ public ActionResult<Plane> Get(int id)
         [HttpPost]
         public ActionResult<Plane> Post(Plane plane)
         {
+            Console.WriteLine($"POST /planes with Id = [{plane.Id}]");
             Planes.Add(plane);
 
             return CreatedAtAction(nameof(Get), new { id = plane.Id }, plane);
         }
+
+        [HttpPut("{id}")]
+        public IActionResult Put(int id, Plane plane)
+        {
+            if (id != plane.Id)
+            {
+                return BadRequest();
+            }
+
+            var index = Planes.FindIndex(p => p.Id == id);
+
+            if (index == -1)
+            {
+                return NotFound();
+            }
+
+            Planes[index] = plane;
+
+            return NoContent();
+        }
+
+        [HttpDelete("{id}")]
+        public IActionResult Delete(int id)
+        {
+            var index = Planes.FindIndex(p => p.Id == id);
+
+            if (index == -1)
+            {
+                return NotFound();
+            }
+
+            Planes.RemoveAt(index);
+
+            return NoContent();
+        }
+
+        // calculate the count of planes between two input years
+        [HttpGet("count")]
+        public ActionResult<int> Count(int startYear, int endYear)
+        {
+            var count = Planes.Count(p => p.Year >= startYear && p.Year <= endYear);
+
+            return count;
+        }
     }
 }
diff --git a/WrightBrothersApi/Models/Plane.cs b/WrightBrothersApi/Models/Plane.cs
index c361b73..7430be9 100644
--- a/WrightBrothersApi/Models/Plane.cs
+++ b/WrightBrothersApi/Models/Plane.cs
@@ -9,5 +9,8 @@ public class Plane
         public int Year { get; set; }
 
         public string Description { get; set; }
+
+        public int RangeInKm { get; set; }
+        public string ImageUrl { get; set; }
     }
 }