From bf38d1d118fd164ad9de654558f07ceaa51218a8 Mon Sep 17 00:00:00 2001
From: Rafael Araujo Lehmkuhl <rafael.lehmkuhl93@gmail.com>
Date: Thu, 17 Sep 2020 16:16:28 -0300
Subject: [PATCH 1/2] Add test for Flap component

Testing:
- instantiation
---
 tests/Components/Aerodynamic/test_Flap.py | 24 +++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 tests/Components/Aerodynamic/test_Flap.py

diff --git a/tests/Components/Aerodynamic/test_Flap.py b/tests/Components/Aerodynamic/test_Flap.py
new file mode 100644
index 0000000..763c74d
--- /dev/null
+++ b/tests/Components/Aerodynamic/test_Flap.py
@@ -0,0 +1,24 @@
+import pytest
+import math
+from vec import Vector2
+
+from adr.Components.Aerodynamic import Flap
+
+
+@pytest.fixture
+def flap():
+    flap = Flap(
+        name='flap',
+        mass=0.05,
+        relative_position=Vector2(-0.34, 0),
+        relative_angle=math.radians(0),
+        width=0.25,
+        height=0.06
+    )
+    return flap
+
+
+def test_instantiation(flap):
+    assert(flap.type == 'flap')
+    assert(flap.width == 0.25)
+    assert(flap.height == 0.06)

From 76758294a709962eca11328a752ba4ea31460601 Mon Sep 17 00:00:00 2001
From: Rafael Araujo Lehmkuhl <rafael.lehmkuhl93@gmail.com>
Date: Thu, 17 Sep 2020 16:27:48 -0300
Subject: [PATCH 2/2] Add docs to Flap component

Create doc file and add an path to it on the docs structure.
---
 docs/Components/Aerodynamic/Flap.md | 29 +++++++++++++++++++++++++++++
 mkdocs.yml                          |  2 ++
 2 files changed, 31 insertions(+)
 create mode 100644 docs/Components/Aerodynamic/Flap.md

diff --git a/docs/Components/Aerodynamic/Flap.md b/docs/Components/Aerodynamic/Flap.md
new file mode 100644
index 0000000..9cb9e81
--- /dev/null
+++ b/docs/Components/Aerodynamic/Flap.md
@@ -0,0 +1,29 @@
+# Flap
+
+The Flap class is intended to be a modifier for the lift and drag calculation on wings. Currently it only has height and width properties that can afterwards be used to calculate its correct aerodynamic behaviour.
+
+## Instantiation
+To instantiate a Flap one can pass the same arguments used to instantiate an AttachedComponent plus its height and width:
+
+``` python
+import math
+from vec import Vector2
+
+from adr.Components.Aerodynamic import Flap
+
+flap = Flap(
+    name='flap',
+    mass=0.05,
+    relative_position=Vector2(-0.34, 0),
+    relative_angle=math.radians(0),
+    width=0.25,
+    height=0.06
+)
+
+print(flap.type)
+>>> flap
+print(f'Flap dimensions are: {100*flap.width} x {100*flap.height} [cm].')
+>>> Flap dimensions are: 25.0 x 6.0 [cm].
+```
+
+Remember that a Flap component represents only one physical flap, so one probably wants to always have at least two simetrically positioned flap instances on each aerodynamic surface.
\ No newline at end of file
diff --git a/mkdocs.yml b/mkdocs.yml
index 4992d03..8e20082 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -7,6 +7,8 @@ nav:
             BaseComponent: Components/BaseComponent.md
             FreeBody: Components/FreeBody.md
             AttachedComponent: Components/AttachedComponent.md
+            Aerodynamic:
+                Flap: Components/Aerodynamic/Flap.md
         World:
             Ambient: World/Ambient.md
             constants: World/constants.md