diff --git a/src/MNH/eol_kine_alm.f90 b/src/MNH/eol_kine_alm.f90
index e3232fac5db801dfafbd5ba8e5b4168660d4327a..45b4cf6795942491c1fac17b449af168bf242e6f 100644
--- a/src/MNH/eol_kine_alm.f90
+++ b/src/MNH/eol_kine_alm.f90
@@ -51,6 +51,7 @@ SUBROUTINE EOL_KINE_ALM(KTCOUNT,KTSUBCOUNT,PTSUBSTEP,PTSTEP)
 !!    -------------
 !!     Original        04/2017
 !!     Modification    10/11/20 (PA. Joulin) Updated for a main version
+!  P. Wautelet 19/07/2021: replace double precision by real to allow MNH_REAL=4 compilation
 !!
 !!---------------------------------------------------------------
 !
@@ -74,19 +75,19 @@ REAL,    INTENT(IN)                     :: PTSUBSTEP        ! sub timestep
 REAL,    INTENT(IN)                     :: PTSTEP           ! timestep 
 !
 !*       0.3 Local variables
-DOUBLE PRECISION, DIMENSION(3,3) :: ZORI_MAT_X, ZORI_MAT_Y, ZORI_MAT_Z
-DOUBLE PRECISION, DIMENSION(3)   :: ZADD_TO_POS
-!
-DOUBLE PRECISION, DIMENSION(3)   :: ZDIST_TOWO_TELT_RG ! Distance between tower elmt and tower base 
-DOUBLE PRECISION, DIMENSION(3)   :: ZDIST_TOWO_NELT_RG ! Distance between nacelle and base of tower
-DOUBLE PRECISION, DIMENSION(3)   :: ZDIST_NAC_HUB_RG   ! Distance between hub and base of nacelle
-DOUBLE PRECISION, DIMENSION(3)   :: ZDIST_HUB_BLA_RG   ! Distance between blade and base of hub
-DOUBLE PRECISION, DIMENSION(3)   :: ZDIST_BLA_ELT_RG   ! Distance between blade and elements
-!
-DOUBLE PRECISION, DIMENSION(3)   :: ZPOS_ELTLE_RE      ! Leading Edge (LE) position, in RE
-DOUBLE PRECISION, DIMENSION(3)   :: ZPOS_ELTLE_RG      ! Leading Edge (LE) position, in RG
-DOUBLE PRECISION, DIMENSION(3)   :: ZPOS_ELTTE_RE      ! Trailing Edge (TE) position, in RE
-DOUBLE PRECISION, DIMENSION(3)   :: ZPOS_ELTTE_RG      ! Trailing Edge (TE) position, in RG
+REAL, DIMENSION(3,3) :: ZORI_MAT_X, ZORI_MAT_Y, ZORI_MAT_Z
+REAL, DIMENSION(3)   :: ZADD_TO_POS
+!
+REAL, DIMENSION(3)   :: ZDIST_TOWO_TELT_RG ! Distance between tower elmt and tower base
+REAL, DIMENSION(3)   :: ZDIST_TOWO_NELT_RG ! Distance between nacelle and base of tower
+REAL, DIMENSION(3)   :: ZDIST_NAC_HUB_RG   ! Distance between hub and base of nacelle
+REAL, DIMENSION(3)   :: ZDIST_HUB_BLA_RG   ! Distance between blade and base of hub
+REAL, DIMENSION(3)   :: ZDIST_BLA_ELT_RG   ! Distance between blade and elements
+!
+REAL, DIMENSION(3)   :: ZPOS_ELTLE_RE      ! Leading Edge (LE) position, in RE
+REAL, DIMENSION(3)   :: ZPOS_ELTLE_RG      ! Leading Edge (LE) position, in RG
+REAL, DIMENSION(3)   :: ZPOS_ELTTE_RE      ! Trailing Edge (TE) position, in RE
+REAL, DIMENSION(3)   :: ZPOS_ELTTE_RG      ! Trailing Edge (TE) position, in RG
 !
 REAL                             :: ZTIME                              ! TIME 
 INTEGER                          :: JROT, JBLA, JTELT, JNELT, JBELT    ! Loop control
diff --git a/src/MNH/eol_maths.f90 b/src/MNH/eol_maths.f90
index 4ef3b31c8df42edddad34759060fe62503c7b4e1..bda3aa6949d919d1616eb68b28bef118ab7802fd 100644
--- a/src/MNH/eol_maths.f90
+++ b/src/MNH/eol_maths.f90
@@ -3,6 +3,9 @@
 !MNH_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt
 !MNH_LIC for details. version 1.
 !-----------------------------------------------------------------
+! Modifications:
+!  P. Wautelet 19/07/2021: replace double precision by real to allow MNH_REAL=4 compilation
+!-----------------------------------------------------------------
 !     #######################
        MODULE MODI_EOL_MATHS
 !     #######################
@@ -10,28 +13,28 @@
 INTERFACE
 !
 FUNCTION CROSS(PA, PB)
-        DOUBLE PRECISION, DIMENSION(3)             :: CROSS
-        DOUBLE PRECISION, DIMENSION(3), INTENT(IN) :: PA, PB
+        REAL, DIMENSION(3)             :: CROSS
+        REAL, DIMENSION(3), INTENT(IN) :: PA, PB
 END FUNCTION CROSS
 !
 FUNCTION NORM(PA)
-        DOUBLE PRECISION                           :: NORM
-        DOUBLE PRECISION, DIMENSION(3), INTENT(IN) :: PA
+        REAL                           :: NORM
+        REAL, DIMENSION(3), INTENT(IN) :: PA
 END FUNCTION NORM
 !
 SUBROUTINE GET_ORI_MAT_X(PTHETA, PORI_MAT_X)
-        DOUBLE PRECISION, INTENT(IN)                   :: PTHETA      ! Angle
-        DOUBLE PRECISION, DIMENSION(3,3), INTENT(OUT)  :: PORI_MAT_X  ! Matrix
+        REAL, INTENT(IN)                   :: PTHETA      ! Angle
+        REAL, DIMENSION(3,3), INTENT(OUT)  :: PORI_MAT_X  ! Matrix
 END SUBROUTINE GET_ORI_MAT_X
 !
 SUBROUTINE GET_ORI_MAT_Y(PTHETA, PORI_MAT_Y)
-        DOUBLE PRECISION, INTENT(IN)                   :: PTHETA      ! Angle
-        DOUBLE PRECISION, DIMENSION(3,3), INTENT(OUT)  :: PORI_MAT_Y  ! Matrix
+        REAL, INTENT(IN)                   :: PTHETA      ! Angle
+        REAL, DIMENSION(3,3), INTENT(OUT)  :: PORI_MAT_Y  ! Matrix
 END SUBROUTINE GET_ORI_MAT_Y
 !
 SUBROUTINE GET_ORI_MAT_Z(PTHETA, PORI_MAT_Z)
-        DOUBLE PRECISION, INTENT(IN)                   :: PTHETA      ! Angle
-        DOUBLE PRECISION, DIMENSION(3,3), INTENT(OUT)  :: PORI_MAT_Z  ! Matrix
+        REAL, INTENT(IN)                   :: PTHETA      ! Angle
+        REAL, DIMENSION(3,3), INTENT(OUT)  :: PORI_MAT_Z  ! Matrix
 END SUBROUTINE GET_ORI_MAT_Z
 !
 FUNCTION INTERP_SPLCUB(PAV, PX, PY)
@@ -71,8 +74,8 @@ END MODULE MODI_EOL_MATHS
 FUNCTION CROSS(PA, PB)
 ! Vectorial product 3D : PA * PB
 !
-        DOUBLE PRECISION, DIMENSION(3) :: CROSS
-        DOUBLE PRECISION, DIMENSION(3), INTENT(IN) :: PA, PB
+        REAL, DIMENSION(3) :: CROSS
+        REAL, DIMENSION(3), INTENT(IN) :: PA, PB
 !
         CROSS(1) = PA(2) * PB(3) - PA(3) * PB(2)
         CROSS(2) = PA(3) * PB(1) - PA(1) * PB(3)
@@ -85,8 +88,8 @@ END FUNCTION CROSS
 FUNCTION NORM(PA)
 ! Eulerian norm of 3D vector : 
 !
-        DOUBLE PRECISION                           :: NORM
-        DOUBLE PRECISION, DIMENSION(3), INTENT(IN) :: PA
+        REAL                           :: NORM
+        REAL, DIMENSION(3), INTENT(IN) :: PA
 !
         NORM  = SQRT( PA(1)**2 + PA(2)**2 + PA(3)**2 )
 !
@@ -97,8 +100,8 @@ END FUNCTION NORM
 SUBROUTINE GET_ORI_MAT_X(PTHETA, PORI_MAT_X)
 ! Rotation matrix of PTHETA angle around X
 !
-        DOUBLE PRECISION, INTENT(IN)                   :: PTHETA      ! Angle
-        DOUBLE PRECISION, DIMENSION(3,3), INTENT(OUT)  :: PORI_MAT_X  ! Matrix
+        REAL, INTENT(IN)                   :: PTHETA      ! Angle
+        REAL, DIMENSION(3,3), INTENT(OUT)  :: PORI_MAT_X  ! Matrix
 !
         PORI_MAT_X (1,1) = 1d0
         PORI_MAT_X (1,2) = 0d0
@@ -117,8 +120,8 @@ END SUBROUTINE GET_ORI_MAT_X
 SUBROUTINE GET_ORI_MAT_Y(PTHETA, PORI_MAT_Y)
 ! Rotation matrix of PTHETA angle around Y
 !
-        DOUBLE PRECISION, INTENT(IN)                   :: PTHETA      ! Angle
-        DOUBLE PRECISION, DIMENSION(3,3), INTENT(OUT)  :: PORI_MAT_Y  ! Matrix
+        REAL, INTENT(IN)                   :: PTHETA      ! Angle
+        REAL, DIMENSION(3,3), INTENT(OUT)  :: PORI_MAT_Y  ! Matrix
 !
         PORI_MAT_Y (1,1) = +COS(PTHETA)
         PORI_MAT_Y (1,2) = 0d0
@@ -137,8 +140,8 @@ END SUBROUTINE GET_ORI_MAT_Y
 SUBROUTINE GET_ORI_MAT_Z(PTHETA, PORI_MAT_Z)
 ! Rotation matrix of PTHETA angle around Z
 !
-        DOUBLE PRECISION, INTENT(IN)                   :: PTHETA      ! Angle
-        DOUBLE PRECISION, DIMENSION(3,3), INTENT(OUT)  :: PORI_MAT_Z  ! Matrix
+        REAL, INTENT(IN)                   :: PTHETA      ! Angle
+        REAL, DIMENSION(3,3), INTENT(OUT)  :: PORI_MAT_Z  ! Matrix
 !
         PORI_MAT_Z (1,1) = +COS(PTHETA)
         PORI_MAT_Z (1,2) = -SIN(PTHETA)
diff --git a/src/MNH/modd_eol_kine_alm.f90 b/src/MNH/modd_eol_kine_alm.f90
index 84f45c055592e1eaaba34b43d067ffab3b2feb8b..4ee2d3a5dea26a35b5fb7ba72952152a2dff00c9 100644
--- a/src/MNH/modd_eol_kine_alm.f90
+++ b/src/MNH/modd_eol_kine_alm.f90
@@ -22,6 +22,7 @@
 !!    MODIFICATIONS
 !!    -------------
 !!    Original 04/18
+!  P. Wautelet 19/07/2021: replace double precision by real to allow MNH_REAL=4 compilation
 !!
 !-----------------------------------------------------------------------------
 !
@@ -30,79 +31,79 @@
 !       
 !
 ! - Matrix to move from one fram to an other -
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XMAT_RG_RT                         ! RG = Repere GLOBAL, RT = Repere TOWER 
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XMAT_RG_RN, XMAT_RT_RN             ! RN = Repere NACELLE
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XMAT_RG_RH, XMAT_RH_RG, XMAT_RN_RH ! RH = Repere HUB
-DOUBLE PRECISION, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XMAT_RG_RB, XMAT_RH_RB             ! RB = Repere BLADE
-DOUBLE PRECISION, DIMENSION(:,:,:,:,:), ALLOCATABLE    :: XMAT_RG_RE, XMAT_RE_RG, XMAT_RB_RE ! RE = Repere ELEMENT
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XMAT_RG_RT                         ! RG = Repere GLOBAL, RT = Repere TOWER 
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XMAT_RG_RN, XMAT_RT_RN             ! RN = Repere NACELLE
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XMAT_RG_RH, XMAT_RH_RG, XMAT_RN_RH ! RH = Repere HUB
+REAL, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XMAT_RG_RB, XMAT_RH_RB             ! RB = Repere BLADE
+REAL, DIMENSION(:,:,:,:,:), ALLOCATABLE    :: XMAT_RG_RE, XMAT_RE_RG, XMAT_RB_RE ! RE = Repere ELEMENT
 
 ! - POSITIONS & ORIENTATIONS -
-DOUBLE PRECISION, DIMENSION(3)                         :: XPOS_REF                           ! Reference position
+REAL, DIMENSION(3)                         :: XPOS_REF                           ! Reference position
 
 ! Tower
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XPOSINI_TOWO_RG                    ! Initial tower origin position, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XPOS_TOWO_RG                       ! Current tower origin real position, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XPOS_TELT_RG                       ! Current tower element position, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XPOS_TELT_RT                       ! Current tower element position, in tower frame
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XANGINI_TOW_RG                     ! Initial tower orientation in global ref frame 
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XPOSINI_TOWO_RG                    ! Initial tower origin position, in global reference frame
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XPOS_TOWO_RG                       ! Current tower origin real position, in global reference frame
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XPOS_TELT_RG                       ! Current tower element position, in global reference frame
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XPOS_TELT_RT                       ! Current tower element position, in tower frame
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XANGINI_TOW_RG                     ! Initial tower orientation in global ref frame 
 
 ! Nacelle	
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XPOSINI_NACO_RT                    ! Initial nacelle position, in tower reference frame 
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XPOS_NACO_RG                       ! Initial nacelle position, in global reference frame 
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XPOS_NELT_RG                       ! Initial nacelle position, in global reference frame 
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XPOS_NELT_RN                       ! Initial nacelle position, in nacelle reference frame 
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XANGINI_NAC_RT                     ! Initial nacelle orientation, in tower reference frame
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XPOSINI_NACO_RT                    ! Initial nacelle position, in tower reference frame 
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XPOS_NACO_RG                       ! Initial nacelle position, in global reference frame 
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XPOS_NELT_RG                       ! Initial nacelle position, in global reference frame 
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XPOS_NELT_RN                       ! Initial nacelle position, in nacelle reference frame 
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XANGINI_NAC_RT                     ! Initial nacelle orientation, in tower reference frame
 
 ! Hub
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XPOSINI_HUB_RN                     ! Initial hub position, in nacelle reference frame
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XPOS_HUB_RG                        ! Current hub position, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XANGINI_HUB_RN                     ! Initial hub orientation, in nacelle reference frame
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XPOSINI_HUB_RN                     ! Initial hub position, in nacelle reference frame
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XPOS_HUB_RG                        ! Current hub position, in global reference frame
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XANGINI_HUB_RN                     ! Initial hub orientation, in nacelle reference frame
        
 ! Blade
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XPOSINI_BLA_RH                     ! Initial blade root position, in hub reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XPOS_BLA_RG                        ! Current blade root position, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XANGINI_BLA_RH                     ! Initial blade orientation, in hub reference frame
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XPOSINI_BLA_RH                     ! Initial blade root position, in hub reference frame
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XPOS_BLA_RG                        ! Current blade root position, in global reference frame
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XANGINI_BLA_RH                     ! Initial blade orientation, in hub reference frame
 
 ! Element
-DOUBLE PRECISION, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XPOS_ELT_RB                        ! Element position, in blade reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XPOS_ELT_RG                        ! Element position, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XPOS_SEC_RB                        ! Section position, in blade reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XPOS_SEC_RG                        ! Section position, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XANGINI_ELT_RB                     ! Initial element orientation in blade reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XTWIST_ELT                         ! Element twist, interpolated from data
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XCHORD_ELT                         ! Element chord lenght, interpolated from data
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XSURF_ELT                          ! Element lift surface 
+REAL, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XPOS_ELT_RB                        ! Element position, in blade reference frame
+REAL, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XPOS_ELT_RG                        ! Element position, in global reference frame
+REAL, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XPOS_SEC_RB                        ! Section position, in blade reference frame
+REAL, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XPOS_SEC_RG                        ! Section position, in global reference frame
+REAL, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XANGINI_ELT_RB                     ! Initial element orientation in blade reference frame
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XTWIST_ELT                         ! Element twist, interpolated from data
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XCHORD_ELT                         ! Element chord lenght, interpolated from data
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XSURF_ELT                          ! Element lift surface 
 !
 !
 ! - STRUCTURAL VELOCITIES -
 ! Tower
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XTVEL_TOWO_RG                      ! Tower base translation velocity, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XTVEL_TELT_RG                      ! Tower element velocity, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XRVEL_RT_RG                        ! RT/RG rotational velocity	
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XTVEL_TOWO_RG                      ! Tower base translation velocity, in global reference frame
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XTVEL_TELT_RG                      ! Tower element velocity, in global reference frame
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XRVEL_RT_RG                        ! RT/RG rotational velocity	
 
 ! Nacelle 
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XTVEL_NACO_RT                      ! Nacelle base translation velocity, in tower reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XTVEL_NELT_RG                      ! Nacelle element translation velocity, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XRVEL_RN_RT                        ! RN/RT rotational velocity
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XRVEL_RN_RG                        ! RN/RG rotational velocity
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XTVEL_NACO_RT                      ! Nacelle base translation velocity, in tower reference frame
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XTVEL_NELT_RG                      ! Nacelle element translation velocity, in global reference frame
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XRVEL_RN_RT                        ! RN/RT rotational velocity
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XRVEL_RN_RG                        ! RN/RG rotational velocity
 
 ! Hub 
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XTVEL_HUB_RN                       ! Hub base translation velocity, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XTVEL_HUB_RG                       ! Hub base translation velocity, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XRVEL_RH_RN                        ! RH/RN rotational velocity
-DOUBLE PRECISION, DIMENSION(:,:),       ALLOCATABLE    :: XRVEL_RH_RG                        ! RH/RG rotational velocity
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XTVEL_HUB_RN                       ! Hub base translation velocity, in global reference frame
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XTVEL_HUB_RG                       ! Hub base translation velocity, in global reference frame
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XRVEL_RH_RN                        ! RH/RN rotational velocity
+REAL, DIMENSION(:,:),       ALLOCATABLE    :: XRVEL_RH_RG                        ! RH/RG rotational velocity
 
 ! Blade 
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XTVEL_BLA_RH                       ! Blade base translation velocity, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XTVEL_BLA_RG                       ! Blade base translation velocity, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XRVEL_RB_RH                        ! RB/RH rotational velocity
-DOUBLE PRECISION, DIMENSION(:,:,:),     ALLOCATABLE    :: XRVEL_RB_RG                        ! RB/RG rotational velocity
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XTVEL_BLA_RH                       ! Blade base translation velocity, in global reference frame
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XTVEL_BLA_RG                       ! Blade base translation velocity, in global reference frame
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XRVEL_RB_RH                        ! RB/RH rotational velocity
+REAL, DIMENSION(:,:,:),     ALLOCATABLE    :: XRVEL_RB_RG                        ! RB/RG rotational velocity
 
 ! Elements
-DOUBLE PRECISION, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XTVEL_ELT_RB                       ! Element base translation velocity, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XTVEL_ELT_RG                       ! Element base translation velocity, in global reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XTVEL_ELT_RE                       ! Element base translation velocity, in element reference frame
-DOUBLE PRECISION, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XRVEL_RE_RB                        ! RE/RB rotational velocity
-DOUBLE PRECISION, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XRVEL_RE_RG                        ! RE/RG rotational velocity
+REAL, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XTVEL_ELT_RB                       ! Element base translation velocity, in global reference frame
+REAL, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XTVEL_ELT_RG                       ! Element base translation velocity, in global reference frame
+REAL, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XTVEL_ELT_RE                       ! Element base translation velocity, in element reference frame
+REAL, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XRVEL_RE_RB                        ! RE/RB rotational velocity
+REAL, DIMENSION(:,:,:,:),   ALLOCATABLE    :: XRVEL_RE_RG                        ! RE/RG rotational velocity
         
 END MODULE MODD_EOL_KINE_ALM