diff --git a/gen_gdl90.go b/gen_gdl90.go
index 3edeea74..d17a5a75 100644
--- a/gen_gdl90.go
+++ b/gen_gdl90.go
@@ -430,7 +430,7 @@ func defaultSettings() {
 	globalSettings.UAT_Enabled = true //TODO
 	globalSettings.ES_Enabled = true  //TODO
 	globalSettings.GPS_Enabled = true //TODO
-	globalSettings.NetworkOutputs = []networkConnection{{nil, "", 4000, NETWORK_GDL90}, {nil, "", 43211, NETWORK_GDL90}, {nil, "", 49002, NETWORK_AHRS}}
+	globalSettings.NetworkOutputs = []networkConnection{{nil, "", 4000, NETWORK_GDL90_STANDARD}, {nil, "", 43211, NETWORK_GDL90_STANDARD | NETWORK_AHRS_GDL90}, {nil, "", 49002, NETWORK_AHRS_FFSIM}}
 	globalSettings.AHRS_Enabled = true
 }
 
diff --git a/network.go b/network.go
index 46991807..133b4b6c 100644
--- a/network.go
+++ b/network.go
@@ -29,8 +29,9 @@ var dhcpLeases map[string]string
 var netMutex *sync.Mutex
 
 const (
-	NETWORK_GDL90   = 1
-	NETWORK_AHRS    = 2
+	NETWORK_GDL90_STANDARD   = 1
+	NETWORK_AHRS_FFSIM    = 2
+	NETWORK_AHRS_GDL90    = 4
 	dhcp_lease_file = "/var/lib/dhcp/dhcpd.leases"
 )
 
@@ -134,7 +135,7 @@ func sendMsg(msg []byte, msgType uint8) {
 }
 
 func sendGDL90(msg []byte) {
-	sendMsg(msg, NETWORK_GDL90)
+	sendMsg(msg, NETWORK_GDL90_STANDARD)
 }
 
 func monitorDHCPLeases() {
diff --git a/protocol/recording.mp4 b/protocol/recording.mp4
new file mode 100644
index 00000000..c5ecc92c
Binary files /dev/null and b/protocol/recording.mp4 differ
diff --git a/ry835ai.go b/ry835ai.go
index b961d797..9bb3e987 100644
--- a/ry835ai.go
+++ b/ry835ai.go
@@ -259,6 +259,53 @@ func tempAndPressureReader() {
 	globalStatus.RY835AI_connected = false
 }
 
+func makeFFAHRSSimReport() {
+	s := fmt.Sprintf("XATTStratux,%f,%f,%f", mySituation.gyro_heading, mySituation.pitch, mySituation.roll)
+
+	sendMsg([]byte(s), NETWORK_AHRS_FFSIM)
+}
+
+func makeAHRSGDL90Report() {
+	msg := make([]byte, 16)
+	msg[0] = 0x4c
+	msg[1] = 0x45
+	msg[2] = 0x01
+	msg[3] = 0x00
+
+	pitch := int16(float64(mySituation.pitch) * float64(10.0))
+	roll := int16(float64(mySituation.roll) * float64(10.0))
+	hdg := uint16(float64(mySituation.gyro_heading) * float64(10.0)) //TODO.
+	slip_skid := int16(float64(0) * float64(10.0)) //TODO.
+	yaw_rate := int16(float64(0) * float64(10.0)) //TODO.
+	g := int16(float64(1.0) * float64(10.0)) //TODO.
+
+	// Roll.
+	msg[4] = byte((roll >> 8) & 0xFF)
+	msg[5] = byte(roll & 0xFF)
+
+	// Pitch.
+	msg[6] = byte((pitch >> 8) & 0xFF)
+	msg[7] = byte(pitch & 0xFF)
+
+	// Heading.
+	msg[8] = byte((hdg >> 8) & 0xFF)
+	msg[9] = byte(hdg & 0xFF)
+
+	// Slip/skid.
+	msg[10] = byte((slip_skid >> 8) & 0xFF)
+	msg[11] = byte(slip_skid & 0xFF)
+
+	// Yaw rate.
+	msg[12] = byte((yaw_rate >> 8) & 0xFF)
+	msg[13] = byte(yaw_rate & 0xFF)
+
+	// "G".
+	msg[14] = byte((g >> 8) & 0xFF)
+	msg[15] = byte(g & 0xFF)
+
+	sendMsg(prepareMessage(msg), NETWORK_AHRS_GDL90)
+}
+
 func attitudeReaderSender() {
 	timer := time.NewTicker(100 * time.Millisecond) // ~10Hz update.
 	for globalStatus.RY835AI_connected && globalSettings.AHRS_Enabled {
@@ -281,9 +328,9 @@ func attitudeReaderSender() {
 
 		// Send, if valid.
 		//		if isGPSGroundTrackValid(), etc.
-		s := fmt.Sprintf("XATTStratux,%f,%f,%f", mySituation.gyro_heading, mySituation.pitch, mySituation.roll)
 
-		sendMsg([]byte(s), NETWORK_AHRS)
+		makeFFAHRSSimReport()
+		makeAHRSGDL90Report()
 
 		mySituation.mu_Attitude.Unlock()
 	}