diff --git a/Flight.cpp b/Flight.cpp
index 2eaf066..cd1a0e6 100644
--- a/Flight.cpp
+++ b/Flight.cpp
@@ -3,9 +3,44 @@
 #include "States.h"
 
 namespace States
-{  
+{
   void Flight()
   {
-    // do flight
+    // Container Telemetry: BMP 308 @ 1Hz, GPS @ 1Hz
+    Common::GPS_Data gps_data;
+    Common::Sensor_Data sensor_data;
+    Hardware::read_gps(gps_data);
+    Hardware::read_sensors(sensor_data);
+
+    // Build the packet with the data
+    String packet;
+    Common::build_packet(packet, "Flight", "N", gps_data, sensor_data);
+
+    // Send the container packet down to the ground station
+    Hardware::mtx.lock();
+    Hardware::ground_packets.enqueue(packet);
+    Hardware::payload_packets.enqueue("0");
+    Hardware::mtx.unlock();
+    
+    // If altitude drops below 400 meters, drop the payload
+    if (Common::altitudes.itemCount() == 3)
+    {
+      float previous_altitude = Common::altitudes.dequeue();
+      Common::altitudes.enqueue(current_altitude);
+      float current_velocity = current_altitude - previous_altitude;
+
+      // Now we'll actually switch the state
+      if (current_velocity < 0)
+      {
+        States::EE_STATE = 3;
+        EEPROM.put(Common::ST_ADDR, 3);
+      }
+    }
+    else if (Common::altitudes.itemCount() < 3)
+    {
+      float current_altitude = gps_data.altitude);
+      Common::altitudes.enqueue(current_altitude)
+    }
+
   }
 }