Content for briefing pages

Author: frankkopp

docs/pilots-corner/a380x/a380x-briefing/flight-deck/ovhd/eng-man.md

@@ -29,6 +29,26 @@ The Engine Manual Start Panel is used to manually start the engines.
     - The start valve closes, provided the ENG MASTER lever is set to OFF.
     - This stops the engine start sequence.
 
+### ALTN MODE
+
+In ALTN mode, the N1 parameter is the primary engine parameter. However, the THR parameter remains displayed on the EWD.
+
+In ALTN mode, the TPR control loop is lost. The FADEC reverts to N1 control and uses the current N1 to control the 
+engine thrust.
+
+The FADEC computes the N1 command as a function of the thrust levers position, speed/mach, altitude, and temperature.
+
+An automatic reversion to ALTN mode occurs when some engine parameters are not available. Automatic reversion to ALTN 
+mode occurs when the P30 or the EGT engine parameter is failed.
+
+When the FADEC operates in ALTN mode:
+
+- The A/THR remains available
+- The thrust rating modes and the corresponding thrust rating limit are available, except flexible and derated takeoff 
+  modes
+- The maximum available thrust at takeoff and go-around is reduced. The maximum available thrust is reduced by 4\%.
+- The soft go-around function is available.
+
 ---
 
 [Back to Overhead](../overviews/ovhd.md){ .md-button }

docs/pilots-corner/a380x/a380x-briefing/flight-deck/ovhd/eng-start.md

@@ -11,7 +11,8 @@ description: The A380 Flight Deck Engine Start Panel description.
 
 ---
 
-![Engine Start Panel](../../../assets/a380x-briefing/flight-deck/ovhd/eng-start-panel.png "Engine Start Panel"){loading=lazy}
+![Engine Start Panel](../../../assets/a380x-briefing/flight-deck/ovhd/eng-start-panel.png 
+"Engine Start Panel"){loading=lazy width=50%}
 
 [//]: # (TODO API Doc Link)