diff --git a/flow360/component/simulation/models/bet/bet_translator_interface.py b/flow360/component/simulation/models/bet/bet_translator_interface.py
index ced654705..2f963a755 100644
--- a/flow360/component/simulation/models/bet/bet_translator_interface.py
+++ b/flow360/component/simulation/models/bet/bet_translator_interface.py
@@ -8,6 +8,7 @@
 
 import flow360.component.simulation.units as u
 from flow360.exceptions import Flow360ValueError
+from flow360.log import log
 
 
 def get_file_content(file_path: str):
@@ -658,15 +659,19 @@ def check_num_values(values_list, line_num, numelts):
     Attributes
     ----------
     values: list
-    numelts:  int
+    numelts:  int, list[int]
     return: None, raises an exception if the error condition is met
     """
+    if isinstance(numelts, int):
+        numelts = [numelts]
 
-    if not len(values_list) == numelts:
-        raise Flow360ValueError(
-            f"wrong number of items for line #%i: {values_list}. We were expecting %i numbers and got %i"
-            % (line_num, len(values_list), numelts)
-        )
+    for numelt in numelts:
+        if len(values_list) == numelt:
+            return
+    raise Flow360ValueError(
+        f"wrong number of items for line #{line_num}: {values_list}. "
+        + f"We were expecting {' or '.join([str(num) for num in numelts])} numbers and got {len(values_list)}"
+    )
 
 
 # pylint: disable=too-many-statements
@@ -922,7 +927,7 @@ def parse_xrotor_file(xrotor_file_content):
     lines = xrotor_file_content.split("\n")
     line_iter = iter(lines)
 
-    top_line = next(line_iter)
+    top_line: str = next(line_iter)
     line_num += 1
     if top_line.find("DFDC") == 0:
         return read_dfdc_file(xrotor_file_content)
@@ -932,6 +937,14 @@ def parse_xrotor_file(xrotor_file_content):
             "This input XROTOR file does not seem to be a valid XROTOR input file"
         )
 
+    version = top_line.split(":")[1].strip()
+
+    if (float(version) < 7.54) or (float(version) > 7.69):
+        log.warning(
+            "The XROTOR translator was prepared for file versions between 7.54 and 7.69,"
+            + f" your version is {version}, errors may occur."
+        )
+
     xrotor_input_dict = {}
 
     next(line_iter)
@@ -979,6 +992,9 @@ def parse_xrotor_file(xrotor_file_content):
     xrotor_input_dict["cdmin"] = [0] * n_aero_sections
     xrotor_input_dict["clcdmin"] = [0] * n_aero_sections
     xrotor_input_dict["dcddcl2"] = [0] * n_aero_sections
+    xrotor_input_dict["dcddcm2"] = [
+        0
+    ] * n_aero_sections  # currently unused by BET translator but we are recording it in case we need it in the future.
 
     for i in range(n_aero_sections):
         comment_line = next(line_iter).upper().split()
@@ -1015,10 +1031,12 @@ def parse_xrotor_file(xrotor_file_content):
         check_comment(comment_line, line_num, 4)
         values = next(line_iter).split()
         line_num += 1
-        check_num_values(values, line_num, 3)
+        check_num_values(values, line_num, [3, 4])
         xrotor_input_dict["cdmin"][i] = float(values[0])
         xrotor_input_dict["clcdmin"][i] = float(values[1])
         xrotor_input_dict["dcddcl2"][i] = float(values[2])
+        if len(values) == 4:
+            xrotor_input_dict["dcddcm2"][i] = float(values[3])
 
         comment_line = next(line_iter).upper().split()
         line_num += 1