diff --git a/pycontrails/core/flight.py b/pycontrails/core/flight.py
index e025bbf6..d2fec5ed 100644
--- a/pycontrails/core/flight.py
+++ b/pycontrails/core/flight.py
@@ -121,6 +121,8 @@ class Flight(GeoVectorDataset):
           calculations with the ICAO Aircraft Emissions Databank (EDB).
         - ``max_mach_number``: Maximum Mach number at cruise altitude. Used by
           some aircraft performance models to clip true airspeed.
+        - ``load_factor``: The load factor used in determining the aircraft's
+          take-off weight. Used by some aircraft performance models.
 
         Numeric quantities that are constant over the entire flight trajectory
         should be included as attributes.