avoid breaking change with drag_coefficient

Author: Gui-FernandesBR

rocketpy/rocket/parachute.py

@@ -125,9 +125,9 @@ def __init__(
         lag=0,
         noise=(0, 0, 0),
         radius=None,
-        drag_coefficient=1.4,
         height=None,
         porosity=0.0432,
+        drag_coefficient=1.4,
     ):
         """Initializes Parachute class.
 
@@ -186,17 +186,6 @@ def __init__(
             ``cd_s`` and ``drag_coefficient`` using:
             ``radius = sqrt(cd_s / (drag_coefficient * pi))``.
             Units are in meters.
-        drag_coefficient : float, optional
-            Drag coefficient of the inflated canopy shape, used only when
-            ``radius`` is not provided. It relates the aerodynamic ``cd_s``
-            to the physical canopy area via
-            ``cd_s = drag_coefficient * pi * radius**2``. Typical values:
-
-            - **1.4** — hemispherical canopy (default, NASA SP-8066)
-            - **0.75** — flat circular canopy
-            - **1.5** — extended-skirt canopy
-
-            Has no effect when ``radius`` is explicitly provided.
         height : float, optional
             Length of the unique semi-axis (height) of the inflated hemispheroid
             parachute. Default value is the radius of the parachute.
@@ -208,6 +197,17 @@ def __init__(
             value of 0.0432 is chosen so that the resulting
             ``added_mass_coefficient`` equals approximately 1.0 ("neutral"
             added-mass behavior).
+        drag_coefficient : float, optional
+            Drag coefficient of the inflated canopy shape, used only when
+            ``radius`` is not provided. It relates the aerodynamic ``cd_s``
+            to the physical canopy area via
+            ``cd_s = drag_coefficient * pi * radius**2``. Typical values:
+
+            - **1.4** — hemispherical canopy (default, NASA SP-8066)
+            - **0.75** — flat circular canopy
+            - **1.5** — extended-skirt canopy
+
+            Has no effect when ``radius`` is explicitly provided.
         """
         self.name = name
         self.cd_s = cd_s

rocketpy/rocket/rocket.py

@@ -1503,9 +1503,9 @@ def add_parachute(
         lag=0,
         noise=(0, 0, 0),
         radius=None,
-        drag_coefficient=1.4,
         height=None,
         porosity=0.0432,
+        drag_coefficient=1.4,
     ):
         """Creates a new parachute, storing its parameters such as
         opening delay, drag coefficients and trigger function.
@@ -1570,11 +1570,6 @@ def add_parachute(
             `cd_s` and `drag_coefficient` using:
             `radius = sqrt(cd_s / (drag_coefficient * pi))`.
             Units are in meters.
-        drag_coefficient : float, optional
-            Drag coefficient of the inflated canopy shape, used only when
-            `radius` is not provided. Typical values: 1.4 for hemispherical
-            canopies (default), 0.75 for flat circular canopies, 1.5 for
-            extended-skirt canopies. Has no effect when `radius` is given.
         height : float, optional
             Length of the unique semi-axis (height) of the inflated hemispheroid
             parachute. Default value is the radius of the parachute.
@@ -1585,6 +1580,11 @@ def add_parachute(
             during descent; it does not change `cd_s` (drag). The default
             value of 0.0432 yields an `added_mass_coefficient` of
             approximately 1.0 ("neutral" added-mass behavior).
+        drag_coefficient : float, optional
+            Drag coefficient of the inflated canopy shape, used only when
+            `radius` is not provided. Typical values: 1.4 for hemispherical
+            canopies (default), 0.75 for flat circular canopies, 1.5 for
+            extended-skirt canopies. Has no effect when `radius` is given.
 
         Returns
         -------