diff --git a/src/fvOptions/sources/derived/rotorDiskSource/bladeModel/bladeModel.H b/src/fvOptions/sources/derived/rotorDiskSource/bladeModel/bladeModel.H
index 0dc28c6036a63b084678c009dca1eb444d7efe4e..d9269c093d7938b930f48201b55cad4d84b9a707 100644
--- a/src/fvOptions/sources/derived/rotorDiskSource/bladeModel/bladeModel.H
+++ b/src/fvOptions/sources/derived/rotorDiskSource/bladeModel/bladeModel.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,22 @@ Class
     Foam::bladeModel
 
 Description
-    Blade model class
+    Blade model class calculates:
+        Linear interpolated blade twist and chord based on radial position
+        Interpolation factor (for interpolating profile performance)
+
+    Input in list format:
+
+        data
+        (
+            (profile1 (radius1 twist1 chord1))
+            (profile1 (radius2 twist2 chord2))
+        );
+
+    where:
+        radius [m]
+        twist [deg], converted to [rad] internally
+        chord [m]
 
 SourceFiles
     bladeModel.C
diff --git a/src/fvOptions/sources/derived/rotorDiskSource/rotorDiskSource.H b/src/fvOptions/sources/derived/rotorDiskSource/rotorDiskSource.H
index 1640c313b5e98d684fd2d350ec07758a52c580a2..f273a783573b8681e3b6b51b41aa5119386e670f 100644
--- a/src/fvOptions/sources/derived/rotorDiskSource/rotorDiskSource.H
+++ b/src/fvOptions/sources/derived/rotorDiskSource/rotorDiskSource.H
@@ -58,12 +58,21 @@ Description
 
         blade
         {
-            ...
+            // see bladeModel.H for documentation
         }
 
         profiles
         {
-            ...
+            profile1
+            {
+                type    lookup; // lookup || series
+                ...
+                // see lookupProfile.H or seriesProfile.H for documentation
+            }
+            profile2
+            {
+                ...
+            }
         }
     }
     \endverbatim
@@ -78,6 +87,10 @@ Description
     - local         : use local flow conditions
     - surfaceNormal : specified normal velocity (positive towards rotor)
 
+See Also
+    Foam::bladeModel
+    Foam::lookupProfile
+    Foam::seriesProfile
 
 SourceFiles
     rotorDiskSource.C