diff --git a/src/classes/@OperRotor/OperRotor.m b/src/classes/@OperRotor/OperRotor.m
index ba2e1c078bc021ef24741d7f9ba3dbee83723b0d..d749984148068a3bb84c811fb422423a66c70f30 100644
--- a/src/classes/@OperRotor/OperRotor.m
+++ b/src/classes/@OperRotor/OperRotor.m
@@ -58,6 +58,7 @@ classdef OperRotor < handle
     properties (Dependent)
         tgTipSpeed (1, 1) double  % Tangential tip speed, [m/s]
         relTipSpeed (1, 1) double % Relative tip speed, [m/s]
+        advanceRatio (1, 1) double % Advance ratio, [-]
 
         cT (1, 1) double % Rotor thrust coefficient, [-]
         cQ (1, 1) double  % Rotor torque coefficient, [-]
@@ -102,6 +103,10 @@ classdef OperRotor < handle
             relSpeed = sqrt(self.tgTipSpeed^2 + self.Op.speed^2);
         end
 
+        function advRat = get.advanceRatio(self)
+            advRat = self.Op.advanceratio(self.Rot.radius * 2, self.Rot.appli);
+        end
+
         function cT = get.cT(self)
             cT = calccoeff(self, 'thrust');
         end