diff --git a/cntmanage/cntmanage/urls.py b/cntmanage/cntmanage/urls.py
index c485b3c..9b63692 100644
--- a/cntmanage/cntmanage/urls.py
+++ b/cntmanage/cntmanage/urls.py
@@ -2,10 +2,12 @@ from django.contrib import admin
 from django.urls import path
 from django.shortcuts import redirect
 from flightslot.admin import flightslot_user
+from flightslot.admin import flightslot_staff
 
 urlpatterns = [
     #path('', RedirectView.as_view(url='/admin/', permanent=False)),
     path('admin/', admin.site.urls),
     path('user/', flightslot_user.urls),
+    path('staff/', flightslot_staff.urls),
     path("", lambda r: redirect("/user/")),              # la root porta gli utenti nella pagina giusta
 ]
diff --git a/cntmanage/flightslot/admin.py b/cntmanage/flightslot/admin.py
index 4d3cb92..f6dd88b 100644
--- a/cntmanage/flightslot/admin.py
+++ b/cntmanage/flightslot/admin.py
@@ -6,7 +6,8 @@ from .models.courses import Course
 from .models.students import Student
 from .models.missions import MissionProfile
 from .models.weekpref import WeekPreference
-from.models.instructors import Instructor
+from .models.instructors import Instructor
+from .models.availabilities import Availability
 
 from .admins.aircraft_adm import AircraftAdmin
 from .admins.course_adm import CourseAdmin
@@ -14,16 +15,19 @@ from .admins.student_adm import StudentAdmin
 from .admins.mission_adm import MissionProfileAdmin
 from .admins.weekpref_adm import WeekPreferenceAdmin
 from .admins.instructor_admin import InstructorAdmin
+from .admins.availability_adm import AvailabilityAdmin
 
 from django.contrib.admin import AdminSite
 
 from os import environ
 
-# User website under /user/ URL
+##################################
+# User website under /user/ URL #
+##################################
 class FlightSlotUserSite(AdminSite):
     site_header = "Flight Scheduler 🛫"
     site_title = "Flight Scheduler 🛫"
-    index_title = "Welcome to CantorAir Flight Scheduler Portal"
+    index_title = "Welcome to CantorAir Flight Scheduler Student Portal"
 
     def get_app_list(self, request: HttpRequest, *args, **kwargs):
         app_list = super().get_app_list(request)
@@ -37,6 +41,26 @@ class FlightSlotUserSite(AdminSite):
 flightslot_user = FlightSlotUserSite(name="user_site")
 flightslot_user.register(WeekPreference, WeekPreferenceAdmin)
 
+##################################
+# User website under /staff/ URL #
+##################################
+class FlightSlotStaffSite(AdminSite):
+    site_header = "Flight Scheduler Staff 🛫"
+    site_title = "Flight Scheduler Staff 🛫"
+    index_title = "Welcome to CantorAir Flight Scheduler Staff Portal"
+
+    def get_app_list(self, request: HttpRequest, *args, **kwargs):
+        app_list = super().get_app_list(request)
+        
+        if not request.user.is_superuser:
+            self.enable_nav_sidebar = False
+        
+        return app_list
+
+# Register only user visible models
+flightslot_staff = FlightSlotUserSite(name="staff_site")
+flightslot_staff.register(Availability, AvailabilityAdmin)
+
 
 # Get version for debug purposes
 ver: str = environ.get("VERSION", "dev")
@@ -51,3 +75,4 @@ admin.site.register(MissionProfile, MissionProfileAdmin)
 admin.site.register(Student, StudentAdmin)
 admin.site.register(WeekPreference, WeekPreferenceAdmin)
 admin.site.register(Instructor, InstructorAdmin)
+admin.site.register(Availability, AvailabilityAdmin)
diff --git a/cntmanage/flightslot/admins/availability_adm.py b/cntmanage/flightslot/admins/availability_adm.py
new file mode 100644
index 0000000..e28da7f
--- /dev/null
+++ b/cntmanage/flightslot/admins/availability_adm.py
@@ -0,0 +1,66 @@
+from django import forms
+from django.db.models.query import QuerySet
+from django.http import HttpRequest
+from django.contrib import admin
+from django.utils.safestring import SafeText
+
+from ..models.instructors import Instructor
+from ..models.availabilities import Availability
+
+from datetime import date
+from typing import Any, List
+
+class AvailabilityForm(forms.ModelForm):
+    model=Availability
+
+class AvailabilityAdmin(admin.ModelAdmin):
+    model = Availability
+    list_display = ("week", "instructor__surname", "instructor__name", "days_available", "hours")
+    list_filter = ("week", )
+    search_fields = ("instructor__surname","instructor__name", )
+    #actions = ("export", )
+
+    @admin.display(description="Days Available")
+    def days_available(self, obj: Availability) -> SafeText:
+        if not obj:
+            return SafeText("")
+        days: List[str | None] = [
+            "Mon" if obj.monday else None,
+            "Tue" if obj.tuesday else None,
+            "Wed" if obj.wednesday else None,
+            "Thu" if obj.thursday else None,
+            "Fri" if obj.friday else None,
+            "Sat" if obj.saturday else None,
+            "Sun" if obj.sunday else None,
+        ]
+        return SafeText("/".join(d if d else "" for d in days))
+
+    def get_queryset(self, request: HttpRequest) -> QuerySet:
+        return super().get_queryset(request).order_by("-week", "instructor__surname", "instructor__name")
+    
+    def get_form(self, request: HttpRequest, obj: Availability | None = None, change: bool = False, **kwargs: Any) -> AvailabilityForm:
+        form: AvailabilityForm = super().get_form(request, obj, change, **kwargs)
+        
+        if change: # if is only a form change do not set default values and return form
+            return form
+        
+        # If form contains the week field
+        current_week = date.today().isocalendar().week
+        if "week" in form.base_fields:
+            # Set default value as current week
+            form.base_fields["week"].initial = current_week
+
+        # If student is current user making request
+        if hasattr(request.user, "instructor"):
+            instructor: Instructor = request.user.instructor
+            if "instructor" in form.base_fields:
+                form.base_fields["instructor"].initial = instructor
+                form.base_fields["instructor"].disabled = True
+        return form
+    
+    # Imposta automaticamente l'istruttore se non è già valorizzato
+    def save_model(self, request: HttpRequest, obj: Availability, form: AvailabilityForm, change: bool):
+        if hasattr(request.user, "instructor") and not obj.instructor_id:
+            obj.instructor = request.user.instructor
+        super().save_model(request, obj, form, change)
+    
\ No newline at end of file
diff --git a/cntmanage/flightslot/admins/weekpref_adm.py b/cntmanage/flightslot/admins/weekpref_adm.py
index 123670a..bdd70f5 100644
--- a/cntmanage/flightslot/admins/weekpref_adm.py
+++ b/cntmanage/flightslot/admins/weekpref_adm.py
@@ -93,13 +93,13 @@ class WeekPreferenceAdmin(nested_admin.NestedPolymorphicModelAdmin):
     
     # If user is a student deny edit permission for week past the current one
     def has_add_permission(self, request: HttpRequest, obj: WeekPreference | None = None) -> bool:
-        return self.has_change_permission(request, obj)
+        return not obj and self.has_change_permission(request, obj)
     
     # If user is a student deny edit permission for week past the current one
     def has_delete_permission(self, request: HttpRequest, obj: WeekPreference | None = None)-> bool:
         return self.has_change_permission(request, obj)
     
-    def changeform_view(self, request: HttpRequest, object_id: int | None = None, form_url: str = "", extra_context=None):
+    def changeform_view(self, request: HttpRequest, object_id: int | None = None, form_url: str = "", extra_context = None):
         extra_context = extra_context or {}
         if hasattr(request.user, "student") and object_id:
             weekpref = WeekPreference.objects.get(id=object_id)
diff --git a/cntmanage/flightslot/custom/student_permissions.py b/cntmanage/flightslot/custom/student_permissions.py
index d995526..12b1b72 100644
--- a/cntmanage/flightslot/custom/student_permissions.py
+++ b/cntmanage/flightslot/custom/student_permissions.py
@@ -12,6 +12,6 @@ def has_edit_permission(request: HttpRequest, obj: WeekPreference | None = None)
         if not student.active:
             return False
         current_week: int = date.today().isocalendar().week
-        if obj and current_week > obj.week or not student.active:
+        if obj and (current_week > obj.week or not student.active):
             return False
     return True
diff --git a/cntmanage/flightslot/middleware.py b/cntmanage/flightslot/middleware.py
index e61654b..81387de 100644
--- a/cntmanage/flightslot/middleware.py
+++ b/cntmanage/flightslot/middleware.py
@@ -7,8 +7,10 @@ class RedirectNonSuperuserFromAdminMiddleware:
         self.get_response = get_response
 
     def __call__(self, request: HttpRequest):
-        # Se l'utente è loggato, non è superuser e prova ad andare in /admin/...
+        # Se l'utente è loggato, non è superuser e prova ad andare in /admin/... o qualsiasi altro path
         if hasattr(request, "user") and not request.user.is_superuser:
-            if "/admin/" in request.path:
+            if hasattr(request.user, "student") and not "/user/" in request.path:
                 return redirect("/user/")  # redirect automatico
+            elif hasattr(request.user, "instructor") and not "/staff/" in request.path:
+                return redirect("/staff/")  # redirect automatico
         return self.get_response(request)
diff --git a/cntmanage/flightslot/migrations/0027_alter_weekpreference_student_availability.py b/cntmanage/flightslot/migrations/0027_alter_weekpreference_student_availability.py
new file mode 100644
index 0000000..a28ec07
--- /dev/null
+++ b/cntmanage/flightslot/migrations/0027_alter_weekpreference_student_availability.py
@@ -0,0 +1,36 @@
+# Generated by Django 5.2.8 on 2025-12-02 10:02
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('flightslot', '0026_alter_student_email_alter_student_phone_instructor'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='weekpreference',
+            name='student',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='flightslot.student', verbose_name='Student Selection'),
+        ),
+        migrations.CreateModel(
+            name='Availability',
+            fields=[
+                ('week', models.PositiveSmallIntegerField(auto_created=True, db_default=49, db_index=True, verbose_name='Week Number')),
+                ('id', models.BigAutoField(primary_key=True, serialize=False)),
+                ('monday', models.BooleanField(default=True)),
+                ('tuesday', models.BooleanField(default=True)),
+                ('wednesday', models.BooleanField(default=True)),
+                ('thursday', models.BooleanField(default=True)),
+                ('friday', models.BooleanField(default=True)),
+                ('saturday', models.BooleanField(default=True)),
+                ('sunday', models.BooleanField(default=True)),
+                ('hours', models.DurationField(null=True, verbose_name='Available hours')),
+                ('notes', models.TextField(blank=True, max_length=140, null=True)),
+                ('instructor', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='flightslot.instructor', verbose_name='Instructor Selection')),
+            ],
+        ),
+    ]
diff --git a/cntmanage/flightslot/migrations/0028_alter_availability_options.py b/cntmanage/flightslot/migrations/0028_alter_availability_options.py
new file mode 100644
index 0000000..3238a02
--- /dev/null
+++ b/cntmanage/flightslot/migrations/0028_alter_availability_options.py
@@ -0,0 +1,17 @@
+# Generated by Django 5.2.8 on 2025-12-02 10:59
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('flightslot', '0027_alter_weekpreference_student_availability'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='availability',
+            options={'verbose_name': 'Instructor Availability', 'verbose_name_plural': 'Instructor Availabilities'},
+        ),
+    ]
diff --git a/cntmanage/flightslot/models/availabilities.py b/cntmanage/flightslot/models/availabilities.py
new file mode 100644
index 0000000..db1cda9
--- /dev/null
+++ b/cntmanage/flightslot/models/availabilities.py
@@ -0,0 +1,79 @@
+from django.db import models
+from datetime import date
+
+from ..models.instructors import Instructor
+
+class Availability(models.Model):
+    id = models.BigAutoField(
+        primary_key=True
+    )
+
+    week = models.PositiveSmallIntegerField(
+        null=False,
+        db_index=True,
+        db_default=date.today().isocalendar().week,
+        auto_created=True,
+        verbose_name="Week Number"
+    )
+
+    instructor = models.ForeignKey(
+        Instructor,
+        null=False,
+        db_index=True,
+        on_delete=models.CASCADE,
+        verbose_name="Instructor Selection"
+    )
+
+    monday = models.BooleanField(
+        default=True,
+        null=False
+    )
+
+    tuesday = models.BooleanField(
+        default=True,
+        null=False
+    )
+
+    wednesday = models.BooleanField(
+        default=True,
+        null=False
+    )
+
+    thursday = models.BooleanField(
+        default=True,
+        null=False
+    )
+
+    friday = models.BooleanField(
+        default=True,
+        null=False
+    )
+
+    saturday = models.BooleanField(
+        default=True,
+        null=False
+    )
+
+    sunday = models.BooleanField(
+        default=True,
+        null=False
+    )
+
+    hours = models.DurationField(
+        null=True,
+        verbose_name="Available hours"
+    )
+
+    notes = models.TextField(
+        max_length=140,
+        null=True,
+        blank=True
+    )
+
+    class Meta():
+        verbose_name = "Instructor Availability"
+        verbose_name_plural = "Instructor Availabilities"
+
+    def __str__(self):
+        return f"Week {self.week} - {self.instructor.surname} {self.instructor.name[0]}."
+    
\ No newline at end of file
diff --git a/cntmanage/flightslot/models/weekpref.py b/cntmanage/flightslot/models/weekpref.py
index ac7fad5..1d9d7d6 100644
--- a/cntmanage/flightslot/models/weekpref.py
+++ b/cntmanage/flightslot/models/weekpref.py
@@ -20,7 +20,7 @@ class WeekPreference(models.Model):
         Student,
         null=False,
         db_index=True,
-        on_delete=models.DO_NOTHING,
+        on_delete=models.CASCADE,
         verbose_name="Student Selection"
     )