MNT: init deployment_level with settet and add_airbrakes maint

rocketpy/rocket/aero_surface.py

@@ -1183,7 +1183,10 @@ def evaluate_geometrical_parameters(self):
             * (self.root_chord + 2 * self.tip_chord)
             * self.rocket_radius
             * self.span**2
-            + 6 * (self.root_chord + self.tip_chord) * self.span * self.rocket_radius**2
+            + 6
+            * (self.root_chord + self.tip_chord)
+            * self.span
+            * self.rocket_radius**2
         ) / 12
         roll_damping_interference_factor = 1 + (
             ((tau - λ) / (tau)) - ((1 - λ) / (tau - 1)) * np.log(tau)
@@ -1506,7 +1509,8 @@ def evaluate_geometrical_parameters(self):
                     * self.rocket_radius**2
                     * np.sqrt(-self.span**2 + self.rocket_radius**2)
                     * np.arctan(
-                        (self.span) / (np.sqrt(-self.span**2 + self.rocket_radius**2))
+                        (self.span)
+                        / (np.sqrt(-self.span**2 + self.rocket_radius**2))
                     )
                     - np.pi
                     * self.rocket_radius**2
@@ -1989,7 +1993,7 @@ def __init__(
         self.reference_area = reference_area
         self.clamp = clamp
         self.override_rocket_drag = override_rocket_drag
-        self._deployment_level = deployment_level
+        self.deployment_level = deployment_level
         self.prints = _AirBrakesPrints(self)
         self.plots = _AirBrakesPlots(self)
 

rocketpy/rocket/rocket.py

@@ -1172,8 +1172,9 @@ def add_air_brakes(
         name="AirBrakes",
         controller_name="AirBrakes Controller",
     ):
-        """Creates a new air brakes, storing its parameters such as
-        opening delay, drag coefficients and trigger function.
+        """Creates a new air brakes system, storing its parameters such as
+        drag coefficient curve, controller function, sampling rate, and
+        reference area.
 
         Parameters
         ----------