diff --git a/fuselage_design/fuselage_design_conf.xml b/fuselage_design/fuselage_design_conf.xml
index d8763b9288640e853ed3cafab94306371dbb15ee..616a21a9bc1e2d9443c84d28377354805cf52672 100644
--- a/fuselage_design/fuselage_design_conf.xml
+++ b/fuselage_design/fuselage_design_conf.xml
@@ -352,10 +352,14 @@
 									<name description="Name of passenger class.">
 										<value>president</value>
 									</name>
-									<abreast description="Seat abreast of current passenger class. int_int (single aisle aircraft) / int_int_int (wide body aircraft)">
+									<abreast_single_aisle description="Seat abreast of current passenger class. int_int (single aisle aircraft)">
 										<value>1_1</value>
 										<default>1_1</default>
-									</abreast>
+									</abreast_single_aisle>
+									<abreast_wide_body description="Seat abreast of current passenger class. int_int_int (wide body aircraft)">
+										<value>1_1_1</value>
+										<default>1_1_1</default>
+									</abreast_wide_body>
 									<seats description="Definiton of passenger class seats.">
 										<seat_on_left_side description="description of the seats for the left side of the aircraft.">
 											<name description="Name of selected seat type.">
@@ -442,10 +446,14 @@
 									<name description="Name of passenger class.">
 										<value>first</value>
 									</name>
-									<abreast description="Seat abreast of current passenger class. int_int (single aisle aircraft) / int_int_int (wide body aircraft)">
+									<abreast_single_aisle description="Seat abreast of current passenger class. int_int (single aisle aircraft) / int_int_int (wide body aircraft)">
 										<value>1_1</value>
 										<default>1_1</default>
-									</abreast>
+									</abreast_single_aisle>
+									<abreast_wide_body description="Seat abreast of current passenger class. int_int_int (wide body aircraft)">
+										<value>1_2_1</value>
+										<default>1_2_1</default>
+									</abreast_wide_body>
 									<seats description="Definiton of passenger class seats.">
 										<seat_on_left_side description="description of the seats for the left side of the aircraft.">
 											<name description="Name of selected seat type.">
@@ -532,10 +540,14 @@
 									<name description="Name of passenger class.">
 										<value>business</value>
 									</name>
-									<abreast description="Seat abreast of current passenger class. int_int (single aisle aircraft) / int_int_int (wide body aircraft)">
+									<abreast_single_aisle description="Seat abreast of current passenger class. int_int (single aisle aircraft) / int_int_int (wide body aircraft)">
 										<value>2_2</value>
 										<default>2_2</default>
-									</abreast>
+									</abreast_single_aisle>
+									<abreast_wide_body description="Seat abreast of current passenger class. int_int_int (wide body aircraft)">
+										<value>1_2_1</value>
+										<default>1_2_1</default>
+									</abreast_wide_body>
 									<seats description="Definiton of passenger class seats.">
 										<seat_on_left_side description="description of the seats for the left side of the aircraft.">
 											<name description="Name of selected seat type.">
@@ -622,10 +634,14 @@
 									<name description="Name of passenger class.">
 										<value>premium economy</value>
 									</name>
-									<abreast description="Seat abreast of current passenger class. int_int (single aisle aircraft) / int_int_int (wide body aircraft)">
+									<abreast_single_aisle description="Seat abreast of current passenger class. int_int (single aisle aircraft) / int_int_int (wide body aircraft)">
 										<value>3_3</value>
 										<default>3_3</default>
-									</abreast>
+									</abreast_single_aisle>
+									<abreast_wide_body description="Seat abreast of current passenger class. int_int_int (wide body aircraft)">
+										<value>2_3_2</value>
+										<default>2_3_2</default>
+									</abreast_wide_body>
 									<seats description="Definiton of passenger class seats.">
 										<seat_on_left_side description="description of the seats for the left side of the aircraft.">
 											<name description="Name of selected seat type.">
@@ -712,10 +728,14 @@
 									<name description="Name of passenger class.">
 										<value>economy</value>
 									</name>
-									<abreast description="Seat abreast of current passenger class. int_int (single aisle aircraft) / int_int_int (wide body aircraft)">
+									<abreast_single_aisle description="Seat abreast of current passenger class. int_int (single aisle aircraft) / int_int_int (wide body aircraft)">
 										<value>3_3</value>
 										<default>3_3</default>
-									</abreast>
+									</abreast_single_aisle>
+									<abreast_wide_body description="Seat abreast of current passenger class. int_int_int (wide body aircraft)">
+										<value>2_4_2</value>
+										<default>2_4_2</default>
+									</abreast_wide_body>
 									<seats description="Definiton of passenger class seats.">
 										<seat_on_left_side description="description of the seats for the left side of the aircraft.">
 											<name description="Name of selected seat type.">
diff --git a/fuselage_design/src/tube_and_wing/empirical/fuselage_design_tu_berlin/general/call_functions/prepareexternaldata.py b/fuselage_design/src/tube_and_wing/empirical/fuselage_design_tu_berlin/general/call_functions/prepareexternaldata.py
index 89fceabb473d4c32aa2777f91ce5833baebe9253..4883b0c5bb2bd05e1c0b29d3aa1b9ad3e53895a4 100644
--- a/fuselage_design/src/tube_and_wing/empirical/fuselage_design_tu_berlin/general/call_functions/prepareexternaldata.py
+++ b/fuselage_design/src/tube_and_wing/empirical/fuselage_design_tu_berlin/general/call_functions/prepareexternaldata.py
@@ -120,12 +120,24 @@ def prepare_external_data(paths_and_names, routing_dict, dict_ac_exchange, dict_
         relevant_classes['passenger_classes'][class_names[index]] = {}
         relevant_classes['passenger_classes']['class_names'].append(class_names[index])
         # read seat abreast
-        relevant_classes['passenger_classes'][class_names[index]]['seat_abreast'] = \
-            dict_mod_config['passenger_class_abreast']['passenger_class_abreast_ID' + str(index)]
-        if relevant_classes['passenger_classes'][class_names[index]]['seat_abreast'] is None:
-            runtime_output.critical('Error: At least one selected class has no entered number of seat abreast.\n'
+        if dict_ac_exchange['fuselage_type'] == 'single_aisle':
+            relevant_classes['passenger_classes'][class_names[index]]['seat_abreast'] = \
+                dict_mod_config['passenger_class_abreast_single_aisle']['passenger_class_abreast_single_aisle_ID' + str(index)]
+            if relevant_classes['passenger_classes'][class_names[index]]['seat_abreast'] is None:
+                runtime_output.critical('Error: At least one selected class has no entered number of seat abreast.\n'
                                     '                                     Program aborted!')
-            sys.exit('Missing number of seat abreast for ' + class_names[index] + ' class.')
+                sys.exit('Missing number of seat abreast for ' + class_names[index] + ' class.')
+        elif dict_ac_exchange['fuselage_type'] == 'wide_body':
+            relevant_classes['passenger_classes'][class_names[index]]['seat_abreast'] = \
+                dict_mod_config['passenger_class_abreast_wide_body']['passenger_class_abreast_wide_body_ID' + str(index)]
+            if relevant_classes['passenger_classes'][class_names[index]]['seat_abreast'] is None:
+                runtime_output.critical('Error: At least one selected class for has no entered number of seat abreast.\n'
+                                    '                                     Program aborted!')
+                sys.exit('Missing number of seat abreast for ' + class_names[index] + ' class.')
+        else:
+            runtime_output.critical('Error: No valid fuselage type selected in the top level aircraft requirement selected.\n'
+                                    '                                     Program aborted!')
+            sys.exit('Invalid fuselage type selected!.')
 
         # read seat name
         relevant_classes['passenger_classes'][class_names[index]]['seat_name'] = {}
diff --git a/fuselage_design/src/tube_and_wing/empirical/fuselage_design_tu_berlin/usermethoddatapreparation.py b/fuselage_design/src/tube_and_wing/empirical/fuselage_design_tu_berlin/usermethoddatapreparation.py
index 8be0cf261a4adc60dc5659f0767872ad33a60da7..4e3b8b8ce7ced8e72a402d92346081788743d6f8 100644
--- a/fuselage_design/src/tube_and_wing/empirical/fuselage_design_tu_berlin/usermethoddatapreparation.py
+++ b/fuselage_design/src/tube_and_wing/empirical/fuselage_design_tu_berlin/usermethoddatapreparation.py
@@ -228,8 +228,10 @@ def user_method_data_input_preparation(routing_dict):
             [tmp_specific + '/passenger_accommodation/in_flight_entertainment/use_in_flight_entertainment', bool],
         'passenger_class_name':
             [tmp_specific + '/passenger_accommodation/passenger_classes/class[@ID="0"]/name', str],
-        'passenger_class_abreast':
-            [tmp_specific + '/passenger_accommodation/passenger_classes/class[@ID="0"]/abreast', str],
+        'passenger_class_abreast_single_aisle':
+            [tmp_specific + '/passenger_accommodation/passenger_classes/class[@ID="0"]/abreast_single_aisle', str],
+        'passenger_class_abreast_wide_body':
+            [tmp_specific + '/passenger_accommodation/passenger_classes/class[@ID="0"]/abreast_wide_body', str],
         'passenger_seat_on_left_side_name':
             [tmp_specific + '/passenger_accommodation/passenger_classes/class[@ID="0"]/seats/seat_on_left_side/name', str],  # noPep8 e501
         'passenger_seat_on_left_side_pitch':