diff --git a/modules/aerodisk/src/AeroDisk.f90 b/modules/aerodisk/src/AeroDisk.f90
index 13de16bfbd..e6257ac2d7 100644
--- a/modules/aerodisk/src/AeroDisk.f90
+++ b/modules/aerodisk/src/AeroDisk.f90
@@ -172,9 +172,9 @@ subroutine SetDiskAvgPoints(ErrStat3,ErrMsg3)
       R = real(p%RotorRad,ReKi) * 0.7_reKi !70% radius
       do i=1,ADsk_NumPtsDiskAvg
          theta = pi +(i-1)*TwoPi/ADsk_NumPtsDiskAvg
-         p%DiskWindPosRel(1,i) = R*cos(theta)
-         p%DiskWindPosRel(2,i) = R*sin(theta)
-         p%DiskWindPosRel(3,i) = 0.0_ReKi
+         p%DiskWindPosRel(1,i) = 0.0_ReKi          ! Hub X (perpindicular to rotor plane)
+         p%DiskWindPosRel(2,i) = R*cos(theta)      ! Hub Y
+         p%DiskWindPosRel(3,i) = R*sin(theta)      ! Hub Z (in vertical plane when azimuth=0)
       end do
    end subroutine SetDiskAvgPoints
 
diff --git a/reg_tests/r-test b/reg_tests/r-test
index 3b84b57166..4df3384816 160000
--- a/reg_tests/r-test
+++ b/reg_tests/r-test
@@ -1 +1 @@
-Subproject commit 3b84b57166b95e348c338b00d5e3b06672a1e131
+Subproject commit 4df338481632c180808aed03f50a275400d4c857