diff --git a/src/fleet.py b/src/fleet.py
index de639f3..d8926d4 100644
--- a/src/fleet.py
+++ b/src/fleet.py
@@ -6,8 +6,8 @@ from position import Position
 from custom_exception.nothing_to_compare_error import NothingToCompareError
 
 class Fleet:
-    def __init__(self, year: int, loader: BoatsLoader):
-        self.boats = loader.load_boats(year)
+    def __init__(self, year: int, loader = None, boats = None):
+        self.boats = loader.load_boats(year) if boats is None else boats
         
 
     def compare_boats(self, getter: callable, comparator: callable):