diff --git a/lander-team/concept-of-operations/readme.md b/lander-team/concept-of-operations/readme.md
new file mode 100644
index 000000000..ab54304d3
--- /dev/null
+++ b/lander-team/concept-of-operations/readme.md
@@ -0,0 +1,26 @@
+# Concept Of Operations
+
+```mermaid
+flowchart TD;
+j -.no.-> h
+subgraph Descent
+a[Deorbit Burn] --> b[Trajectory Optimization]
+b --> c[Hoverslam Altitude?]
+c -.no.-> b
+c -.yes.-> d[Controlled Landing]
+d-->dd[Touchdown]
+end
+
+subgraph Ascent
+f[Engine Ignition]
+f --> g[Controlled Takoff]
+g --> h[Orbital Burn] 
+h --> j[Desired Orbit?]
+j -.yes.->jj[Mission End]
+end
+
+dd --> g1[unload/load mining equipment]
+g1 --> Ascent
+
+
+```
\ No newline at end of file
-- 
2.51.2


From 409f4b87145209c48f145e8e83bc6fa4bc102a85 Mon Sep 17 00:00:00 2001
From: Anson Biggs <anson@ansonbiggs.com>
Date: Wed, 17 Mar 2021 02:13:43 +0000
Subject: [PATCH 2/5] Update readme.md

---
 lander-team/concept-of-operations/readme.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lander-team/concept-of-operations/readme.md b/lander-team/concept-of-operations/readme.md
index ab54304d3..9a817c048 100644
--- a/lander-team/concept-of-operations/readme.md
+++ b/lander-team/concept-of-operations/readme.md
@@ -1,7 +1,8 @@
 # Concept Of Operations
 
 ```mermaid
-flowchart TD;
+%%{init: {'theme':'neutral'}}%%
+flowchart LR;
 j -.no.-> h
 subgraph Descent
 a[Deorbit Burn] --> b[Trajectory Optimization]
@@ -23,4 +24,4 @@ dd --> g1[unload/load mining equipment]
 g1 --> Ascent
 
 
-```
\ No newline at end of file
+```
-- 
2.51.2


From dadbe1993da01d35216fc0ec452a8a749c56029c Mon Sep 17 00:00:00 2001
From: Anson Biggs <anson@ansonbiggs.com>
Date: Wed, 31 Mar 2021 18:34:01 +0000
Subject: [PATCH 3/5] Made avionics diagram

---
 lander-team/concept-of-operations/readme.md | 24 +++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/lander-team/concept-of-operations/readme.md b/lander-team/concept-of-operations/readme.md
index 9a817c048..d1335941f 100644
--- a/lander-team/concept-of-operations/readme.md
+++ b/lander-team/concept-of-operations/readme.md
@@ -25,3 +25,27 @@ g1 --> Ascent
 
 
 ```
+
+# Avionics Design 
+
+```mermaid
+
+%%{init: {'theme':'neutral'}}%%
+flowchart LR;
+
+t[Teensy 4.1]
+imu[Inertial Measurement Unit]
+b[Barometer]
+
+subgraph Propulsion
+r[Roll Motor]
+p[Pitch Motor]
+end
+
+
+imu & b -. I2C .-> t
+
+t -- PWM --> r & p
+
+```
+
-- 
2.51.2


From faaa0dfeb1b9928ab71fb13d2484017d58f95423 Mon Sep 17 00:00:00 2001
From: Anson Biggs <anson@ansonbiggs.com>
Date: Thu, 1 Apr 2021 00:15:31 +0000
Subject: [PATCH 4/5] added ignitor and battery to avionics

---
 lander-team/concept-of-operations/readme.md | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lander-team/concept-of-operations/readme.md b/lander-team/concept-of-operations/readme.md
index d1335941f..4d4f0245d 100644
--- a/lander-team/concept-of-operations/readme.md
+++ b/lander-team/concept-of-operations/readme.md
@@ -33,6 +33,7 @@ g1 --> Ascent
 %%{init: {'theme':'neutral'}}%%
 flowchart LR;
 
+batt[Battery]
 t[Teensy 4.1]
 imu[Inertial Measurement Unit]
 b[Barometer]
@@ -40,12 +41,14 @@ b[Barometer]
 subgraph Propulsion
 r[Roll Motor]
 p[Pitch Motor]
+e[Engine Ignitor]
 end
 
 
 imu & b -. I2C .-> t
+batt == 3.3V ==> t
 
-t -- PWM --> r & p
+t -- PWM --> r & p & e
 
 ```
 
-- 
2.51.2


From 152cc67db29f85de10e212a61a1e83bd3c74cfb6 Mon Sep 17 00:00:00 2001
From: Anson Biggs <anson@ansonbiggs.com>
Date: Mon, 26 Apr 2021 16:31:34 +0000
Subject: [PATCH 5/5] Update readme.md

---
 lander-team/concept-of-operations/readme.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lander-team/concept-of-operations/readme.md b/lander-team/concept-of-operations/readme.md
index 4d4f0245d..bf96d0bc1 100644
--- a/lander-team/concept-of-operations/readme.md
+++ b/lander-team/concept-of-operations/readme.md
@@ -20,7 +20,7 @@ h --> j[Desired Orbit?]
 j -.yes.->jj[Mission End]
 end
 
-dd --> g1[unload/load mining equipment]
+dd --> g1[Unload/Load Mining Equipment]
 g1 --> Ascent