OC4-semi hydrodynamics

Dear Jason,
I am trying to implement the hydrodynamics of the OC4-semi substructure and I have some problems with the hydrodynamic forces acting on the hull.
In fact, I would expect that, for example, comparing the results in OutData:
HydroFxi = WavesFxi + AddFxi + RdtnFxi + HdrStcFxi
but the equation doesn’t come back.
Looking at the input file below, could you tell me if there is any other contribution to HydroFxi?

------- HydroDyn v2.03.* Input File --------------------------------------------
NREL 5.0 MW offshore baseline floating platform HydroDyn input properties for the OC4 Semi-submersible.
False            Echo           - Echo the input file data (flag)
---------------------- ENVIRONMENTAL CONDITIONS --------------------------------
          1025   WtrDens        - Water density (kg/m^3)
           200   WtrDpth        - Water depth (meters)
             0   MSL2SWL        - Offset between still-water level and mean sea level (meters) [positive upward; unused when WaveMod = 6; must be zero if PotMod=1 or 2]
---------------------- WAVES ---------------------------------------------------
             2   WaveMod        - Incident wave kinematics model {0: none=still water, 1: regular (periodic), 1P#: regular with user-specified phase, 2: JONSWAP/Pierson-Moskowitz spectrum (irregular), 3: White noise spectrum (irregular), 4: user-defined spectrum from routine UserWaveSpctrm (irregular), 5: Externally generated wave-elevation time series, 6: Externally generated full wave-kinematics time series [option 6 is invalid for PotMod/=0]} (switch)
             0   WaveStMod      - Model for stretching incident wave kinematics to instantaneous free surface {0: none=no stretching, 1: vertical stretching, 2: extrapolation stretching, 3: Wheeler stretching} (switch) [unused when WaveMod=0 or when PotMod/=0]
          3630   WaveTMax       - Analysis time for incident wave calculations (sec) [unused when WaveMod=0; determines WaveDOmega=2Pi/WaveTMax in the IFFT]
          0.25   WaveDT         - Time step for incident wave calculations     (sec) [unused when WaveMod=0; 0.1<=WaveDT<=1.0 recommended; determines WaveOmegaMax=Pi/WaveDT in the IFFT]
          2.75   WaveHs         - Significant wave height of incident waves (meters) [used only when WaveMod=1, 2, or 3]
           6.5   WaveTp         - Peak-spectral period of incident waves       (sec) [used only when WaveMod=1 or 2]
"DEFAULT"        WavePkShp      - Peak-shape parameter of incident wave spectrum (-) or DEFAULT (string) [used only when WaveMod=2; use 1.0 for Pierson-Moskowitz]
             0   WvLowCOff      - Low  cut-off frequency or lower frequency limit of the wave spectrum beyond which the wave spectrum is zeroed (rad/s) [unused when WaveMod=0, 1, or 6]
           500   WvHiCOff       - High cut-off frequency or upper frequency limit of the wave spectrum beyond which the wave spectrum is zeroed (rad/s) [unused when WaveMod=0, 1, or 6]
             0   WaveDir        - Incident wave propagation heading direction                         (degrees) [unused when WaveMod=0 or 6]
             0   WaveDirMod     - Directional spreading function {0: none, 1: COS2S}                  (-)       [only used when WaveMod=2,3, or 4]
             1   WaveDirSpread  - Wave direction spreading coefficient ( > 0 )                        (-)       [only used when WaveMod=2,3, or 4 and WaveDirMod=1]
             1   WaveNDir       - Number of wave directions                                           (-)       [only used when WaveMod=2,3, or 4 and WaveDirMod=1; odd number only]
             0   WaveDirRange   - Range of wave directions (full range: WaveDir +/- 1/2*WaveDirRange) (degrees) [only used when WaveMod=2,3,or 4 and WaveDirMod=1]
     123456789   WaveSeed(1)    - First  random seed of incident waves [-2147483648 to 2147483647]    (-)       [unused when WaveMod=0, 5, or 6]
    1011121314   WaveSeed(2)    - Second random seed of incident waves [-2147483648 to 2147483647]    (-)       [unused when WaveMod=0, 5, or 6]
TRUE            WaveNDAmp      - Flag for normally distributed amplitudes                            (flag)    [only used when WaveMod=2, 3, or 4]
""               WvKinFile      - Root name of externally generated wave data file(s)        (quoted string)    [used only when WaveMod=5 or 6]
             1   NWaveElev      - Number of points where the incident wave elevations can be computed (-)       [maximum of 9 output locations]
             0   WaveElevxi     - List of xi-coordinates for points where the incident wave elevations can be output (meters) [NWaveElev points, separated by commas or white space; usused if NWaveElev = 0]
             0   WaveElevyi     - List of yi-coordinates for points where the incident wave elevations can be output (meters) [NWaveElev points, separated by commas or white space; usused if NWaveElev = 0]
---------------------- 2ND-ORDER WAVES ----------------------------------------- [unused with WaveMod=0 or 6]
FALSE            WvDiffQTF      - Full difference-frequency 2nd-order wave kinematics (flag)
FALSE            WvSumQTF       - Full summation-frequency  2nd-order wave kinematics (flag)
             0   WvLowCOffD     - Low  frequency cutoff used in the difference-frequencies (rad/s) [Only used with a difference-frequency method]
      1.256637   WvHiCOffD      - High frequency cutoff used in the difference-frequencies (rad/s) [Only used with a difference-frequency method]
      0.618319   WvLowCOffS     - Low  frequency cutoff used in the summation-frequencies  (rad/s) [Only used with a summation-frequency  method]
      3.141593   WvHiCOffS      - High frequency cutoff used in the summation-frequencies  (rad/s) [Only used with a summation-frequency  method]
---------------------- CURRENT ------------------------------------------------- [unused with WaveMod=6]
             0   CurrMod        - Current profile model {0: none=no current, 1: standard, 2: user-defined from routine UserCurrent} (switch)
             0   CurrSSV0       - Sub-surface current velocity at still water level  (m/s) [used only when CurrMod=1]
"DEFAULT"        CurrSSDir      - Sub-surface current heading direction (degrees) or DEFAULT (string) [used only when CurrMod=1]
            20   CurrNSRef      - Near-surface current reference depth            (meters) [used only when CurrMod=1]
             0   CurrNSV0       - Near-surface current velocity at still water level (m/s) [used only when CurrMod=1]
             0   CurrNSDir      - Near-surface current heading direction         (degrees) [used only when CurrMod=1]
             0   CurrDIV        - Depth-independent current velocity                 (m/s) [used only when CurrMod=1]
             0   CurrDIDir      - Depth-independent current heading direction    (degrees) [used only when CurrMod=1]
---------------------- FLOATING PLATFORM --------------------------------------- [unused with WaveMod=6]
             1   PotMod         - Potential-flow model {0: none=no potential flow, 1: frequency-to-time-domain transforms based on WAMIT output, 2: fluid-impulse theory (FIT)} (switch)
"5MW_Baseline/HydroData/marin_semi"    PotFile        - Root name of potential-flow model data; WAMIT output files containing the linear, nondimensionalized, hydrostatic restoring matrix (.hst), frequency-dependent hydrodynamic added mass matrix and damping matrix (.1), and frequency- and direction-dependent wave excitation force vector per unit wave amplitude (.3) (quoted string) [MAKE SURE THE FREQUENCIES INHERENT IN THESE WAMIT FILES SPAN THE PHYSICALLY-SIGNIFICANT RANGE OF FREQUENCIES FOR THE GIVEN PLATFORM; THEY MUST CONTAIN THE ZERO- AND INFINITE-FREQUENCY LIMITS!]
             1   WAMITULEN      - Characteristic body length scale used to redimensionalize WAMIT output (meters) [only used when PotMod=1]
         13917   PtfmVol0       - Displaced volume of water when the platform is in its undisplaced position (m^3) [only used when PotMod=1; USE THE SAME VALUE COMPUTED BY WAMIT AS OUTPUT IN THE .OUT FILE!]
             0   PtfmCOBxt      - The xt offset of the center of buoyancy (COB) from the platform reference point (meters)  [only used when PotMod=1]
             0   PtfmCOByt      - The yt offset of the center of buoyancy (COB) from the platform reference point (meters)  [only used when PotMod=1]
             1   RdtnMod        - Radiation memory-effect model {0: no memory-effect calculation, 1: convolution, 2: state-space} (switch) [only used when PotMod=1; STATE-SPACE REQUIRES *.ss INPUT FILE]
            60   RdtnTMax       - Analysis time for wave radiation kernel calculations (sec) [only used when PotMod=1; determines RdtnDOmega=Pi/RdtnTMax in the cosine transform; MAKE SURE THIS IS LONG ENOUGH FOR THE RADIATION IMPULSE RESPONSE FUNCTIONS TO DECAY TO NEAR-ZERO FOR THE GIVEN PLATFORM!]
          0.05   RdtnDT         - Time step for wave radiation kernel calculations (sec) [only used when PotMod=1; DT<=RdtnDT<=0.1 recommended; determines RdtnOmegaMax=Pi/RdtnDT in the cosine transform]
---------------------- 2ND-ORDER FLOATING PLATFORM FORCES ---------------------- [unused with WaveMod=0 or 6, or PotMod=0 or 2]
             0   MnDrift        - Mean-drift 2nd-order forces computed                                       {0: None; [7, 8, 9, 10, 11, or 12]: WAMIT file to use} [Only one of MnDrift, NewmanApp, or DiffQTF can be non-zero]
             0   NewmanApp      - Mean- and slow-drift 2nd-order forces computed with Newman's approximation {0: None; [7, 8, 9, 10, 11, or 12]: WAMIT file to use} [Only one of MnDrift, NewmanApp, or DiffQTF can be non-zero. Used only when WaveDirMod=0]
             0   DiffQTF        - Full difference-frequency 2nd-order forces computed with full QTF          {0: None; [10, 11, or 12]: WAMIT file to use}          [Only one of MnDrift, NewmanApp, or DiffQTF can be non-zero]
             0   SumQTF         - Full summation -frequency 2nd-order forces computed with full QTF          {0: None; [10, 11, or 12]: WAMIT file to use}
---------------------- FLOATING PLATFORM FORCE FLAGS  -------------------------- [unused with WaveMod=6]
True             PtfmSgF        - Platform horizontal surge translation force (flag) or DEFAULT
True             PtfmSwF        - Platform horizontal sway translation force (flag) or DEFAULT
True             PtfmHvF        - Platform vertical heave translation force (flag) or DEFAULT
True             PtfmRF         - Platform roll tilt rotation force (flag) or DEFAULT
True             PtfmPF         - Platform pitch tilt rotation force (flag) or DEFAULT
True             PtfmYF         - Platform yaw rotation force (flag) or DEFAULT
---------------------- PLATFORM ADDITIONAL STIFFNESS AND DAMPING  --------------
             0             0             0             0             0             0   AddF0    - Additional preload (N, N-m)
             0             0             0             0             0             0   AddCLin  - Additional linear stiffness (N/m, N/rad, N-m/m, N-m/rad)
             0             0             0             0             0             0
             0             0             0             0             0             0
             0             0             0    1451298897             0             0
             0             0             0             0    1451298897             0
             0             0             0             0             0             0
             0             0             0             0             0             0   AddBLin  - Additional linear damping(N/(m/s), N/(rad/s), N-m/(m/s), N-m/(rad/s))
             0             0             0             0             0             0
             0             0             0             0             0             0
             0             0             0             0             0             0
             0             0             0             0             0             0
             0             0             0             0             0             0
             0             0             0             0             0             0   AddBQuad - Additional quadratic drag(N/(m/s)^2, N/(rad/s)^2, N-m(m/s)^2, N-m/(rad/s)^2)
             0             0             0             0             0             0
             0             0             0             0             0             0
             0             0             0             0             0             0
             0             0             0             0             0             0
             0             0             0             0             0             0
---------------------- AXIAL COEFFICIENTS --------------------------------------
             2   NAxCoef        - Number of axial coefficients (-)
AxCoefID  AxCd     AxCa     AxCp
   (-)    (-)      (-)      (-)
    1     0.00     0.00     1.00
    2     0.00     0.00     1.00
---------------------- MEMBER JOINTS -------------------------------------------
            44   NJoints        - Number of joints (-)   [must be exactly 0 or at least 2]
JointID   Jointxi     Jointyi     Jointzi  JointAxID   JointOvrlp   [JointOvrlp= 0: do nothing at joint, 1: eliminate overlaps by calculating super member]
   (-)     (m)         (m)         (m)        (-)       (switch)
    1     0.00000     0.00000   -20.00000      1            0
    2     0.00000     0.00000    10.00000      1            0
    3    14.43376    25.00000   -14.00000      1            0
    4    14.43376    25.00000    12.00000      1            0
    5   -28.86751     0.00000   -14.00000      1            0
    6   -28.86751     0.00000    12.00000      1            0
    7    14.43376   -25.00000   -14.00000      1            0
    8    14.43376   -25.00000    12.00000      1            0
    9    14.43375    25.00000   -20.00000      2            0
   10   -28.86750     0.00000   -20.00000      2            0
   11    14.43375   -25.00000   -20.00000      2            0
   12     9.23760    22.00000    10.00000      1            0
   13   -23.67130     3.00000    10.00000      1            0
   14   -23.67130    -3.00000    10.00000      1            0
   15     9.23760   -22.00000    10.00000      1            0
   16    14.43375   -19.00000    10.00000      1            0
   17    14.43375    19.00000    10.00000      1            0
   18     4.04145    19.00000   -17.00000      1            0
   19   -18.47520     6.00000   -17.00000      1            0
   20   -18.47520    -6.00000   -17.00000      1            0
   21     4.04145   -19.00000   -17.00000      1            0
   22    14.43375   -13.00000   -17.00000      1            0
   23    14.43375    13.00000   -17.00000      1            0
   24     1.62500     2.81500    10.00000      1            0
   25    11.43376    19.80385    10.00000      1            0
   26    -3.25000     0.00000    10.00000      1            0
   27   -22.87000     0.00000    10.00000      1            0
   28     1.62500    -2.81500    10.00000      1            0
   29    11.43376   -19.80385    10.00000      1            0
   30     1.62500     2.81500   -17.00000      1            0
   31     8.43376    14.60770   -17.00000      1            0
   32    -3.25000     0.00000   -17.00000      1            0
   33   -16.87000     0.00000   -17.00000      1            0
   34     1.62500    -2.81500   -17.00000      1            0
   35     8.43376   -14.60770   -17.00000      1            0
   36     1.62500     2.81500   -16.20000      1            0
   37    11.43376    19.80385     9.13000      1            0
   38    -3.25000     0.00000   -16.20000      1            0
   39   -22.87000     0.00000     9.13000      1            0
   40     1.62500    -2.81500   -16.20000      1            0
   41    11.43376   -19.80385     9.13000      1            0
   42    14.43376    25.00000   -19.94000      1            0
   43   -28.86751     0.00000   -19.94000      1            0
   44    14.43376   -25.00000   -19.94000      1            0
---------------------- MEMBER CROSS-SECTION PROPERTIES -------------------------
             4   NPropSets      - Number of member property sets (-)
PropSetID    PropD         PropThck
   (-)        (m)            (m)
    1        6.50000        0.03000          ! Main Column
    2       12.00000        0.06000          ! Upper Columns
    3       24.00000        0.06000          ! Base Columns
    4        1.60000        0.01750          ! Pontoons
---------------------- SIMPLE HYDRODYNAMIC COEFFICIENTS (model 1) --------------
     SimplCd    SimplCdMG    SimplCa    SimplCaMG    SimplCp    SimplCpMG   SimplAxCa  SimplAxCaMG  SimplAxCp   SimplAxCpMG
       (-)         (-)         (-)         (-)         (-)         (-)         (-)         (-)         (-)         (-)
       0.00        0.00        0.00        0.00        1.00        1.00        0.00        0.00        1.00        1.00
---------------------- DEPTH-BASED HYDRODYNAMIC COEFFICIENTS (model 2) ---------
             0   NCoefDpth       - Number of depth-dependent coefficients (-)
Dpth      DpthCd   DpthCdMG   DpthCa   DpthCaMG       DpthCp   DpthCpMG   DpthAxCa   DpthAxCaMG       DpthAxCp   DpthAxCpMG
(m)       (-)      (-)        (-)      (-)            (-)      (-)          (-)        (-)              (-)         (-)
---------------------- MEMBER-BASED HYDRODYNAMIC COEFFICIENTS (model 3) --------
            25   NCoefMembers       - Number of member-based coefficients (-)
MemberID    MemberCd1     MemberCd2    MemberCdMG1   MemberCdMG2    MemberCa1     MemberCa2    MemberCaMG1   MemberCaMG2    MemberCp1     MemberCp2    MemberCpMG1   MemberCpMG2   MemberAxCa1   MemberAxCa2  MemberAxCaMG1 MemberAxCaMG2  MemberAxCp1  MemberAxCp2   MemberAxCpMG1   MemberAxCpMG2
   (-)         (-)           (-)           (-)           (-)           (-)           (-)           (-)           (-)           (-)           (-)           (-)           (-)           (-)           (-)           (-)           (-)           (-)           (-)           (-)           (-)          ! Main Column
    1          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Upper Column 1
    2          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Upper Column 2
    3          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Upper Column 3
    4          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Base Column 1
    5          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Base Column 2
    6          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Base Column 3
    7          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Base column cap 1
   23          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Base column cap 2
   24          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Base column cap 3
   25          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Delta Pontoon, Upper 1
    8          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Delta Pontoon, Upper 2
    9          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Delta Pontoon, Upper 3
   10          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Delta Pontoon, Lower 1
   11          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Delta Pontoon, Lower 2
   12          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Delta Pontoon, Lower 3
   13          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Y Pontoon, Upper 1
   14          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Y Pontoon, Upper 2
   15          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Y Pontoon, Upper 3
   16          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Y Pontoon, Lower 1
   17          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Y Pontoon, Lower 2
   18          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Y Pontoon, Lower 3
   19          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Cross Brace 1
   20          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Cross Brace 2
   21          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00         ! Cross Brace 3
   22          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00          0.00
-------------------- MEMBERS -------------------------------------------------
            25   NMembers       - Number of members (-)
MemberID  MJointID1  MJointID2  MPropSetID1  MPropSetID2  MDivSize   MCoefMod  PropPot   [MCoefMod=1: use simple coeff table, 2: use depth-based coeff table, 3: use member-based coeff table] [ PropPot/=0 if member is modeled with potential-flow theory]
  (-)        (-)        (-)         (-)          (-)        (m)      (switch)   (flag)
    1         1          2           1            1         1.0000      3        TRUE           ! Main Column
    2         3          4           2            2         1.0000      3        TRUE           ! Upper Column 1
    3         5          6           2            2         1.0000      3        TRUE           ! Upper Column 2
    4         7          8           2            2         1.0000      3        TRUE           ! Upper Column 3
    5        42          3           3            3         1.0000      3        TRUE           ! Base Column 1
    6        43          5           3            3         1.0000      3        TRUE           ! Base Column 2
    7        44          7           3            3         1.0000      3        TRUE           ! Base Column 3
   23         9         42           3            3         1.0000      3        TRUE           ! Base column cap 1
   24        10         43           3            3         1.0000      3        TRUE           ! Base column cap 2
   25        11         44           3            3         1.0000      3        TRUE           ! Base column cap 3
    8        12         13           4            4         1.0000      3        TRUE           ! Delta Pontoon, Upper 1
    9        14         15           4            4         1.0000      3        TRUE           ! Delta Pontoon, Upper 2
   10        16         17           4            4         1.0000      3        TRUE           ! Delta Pontoon, Upper 3
   11        18         19           4            4         1.0000      3        TRUE           ! Delta Pontoon, Lower 1
   12        20         21           4            4         1.0000      3        TRUE           ! Delta Pontoon, Lower 2
   13        22         23           4            4         1.0000      3        TRUE           ! Delta Pontoon, Lower 3
   14        24         25           4            4         1.0000      3        TRUE           ! Y Pontoon, Upper 1
   15        26         27           4            4         1.0000      3        TRUE           ! Y Pontoon, Upper 2
   16        28         29           4            4         1.0000      3        TRUE           ! Y Pontoon, Upper 3
   17        30         31           4            4         1.0000      3        TRUE           ! Y Pontoon, Lower 1
   18        32         33           4            4         1.0000      3        TRUE           ! Y Pontoon, Lower 2
   19        34         35           4            4         1.0000      3        TRUE           ! Y Pontoon, Lower 3
   20        36         37           4            4         1.0000      3        TRUE           ! Cross Brace 1
   21        38         39           4            4         1.0000      3        TRUE           ! Cross Brace 2
   22        40         41           4            4         1.0000      3        TRUE           ! Cross Brace 3
---------------------- FILLED MEMBERS ------------------------------------------
             2   NFillGroups     - Number of filled member groups (-) [If FillDens = DEFAULT, then FillDens = WtrDens; FillFSLoc is related to MSL2SWL]
FillNumM FillMList             FillFSLoc     FillDens
(-)      (-)                   (m)           (kg/m^3)
    3   2   3   4    -6.17           1025
    3   5   6   7   -14.89           1025
---------------------- MARINE GROWTH -------------------------------------------
             0   NMGDepths      - Number of marine-growth depths specified (-)
MGDpth     MGThck       MGDens
(m)        (m)         (kg/m^3)
---------------------- MEMBER OUTPUT LIST --------------------------------------
             0   NMOutputs      - Number of member outputs (-) [must be < 10]
MemberID   NOutLoc    NodeLocs [NOutLoc < 10; node locations are normalized distance from the start of the member, and must be >=0 and <= 1] [unused if NMOutputs=0]
  (-)        (-)        (-)
---------------------- JOINT OUTPUT LIST ---------------------------------------
             0   NJOutputs      - Number of joint outputs [Must be < 10]
   0           JOutLst        - List of JointIDs which are to be output (-)[unused if NJOutputs=0]
---------------------- OUTPUT --------------------------------------------------
True             HDSum          - Output a summary file [flag]
False            OutAll         - Output all user-specified member and joint loads (only at each member end, not interior locations) [flag]
             2   OutSwtch       - Output requested channels to: [1=Hydrodyn.out, 2=GlueCode.out, 3=both files]
"ES11.4e2"       OutFmt         - Output format for numerical results (quoted string) [not checked for validity!]
"A11"            OutSFmt        - Output format for header strings (quoted string) [not checked for validity!]
---------------------- OUTPUT CHANNELS -----------------------------------------
"Wave1Elev"               - Wave elevation at the platform reference point (0,  0)

"WavesFxi"
"WavesFyi"
"WavesFzi"
"WavesMxi"
"WavesMyi"
"WavesMzi"

"AddFxi"
"AddFyi"
"AddFzi"
"AddMxi"
"AddMyi"
"AddMzi"

"HydroFxi"
"HydroFyi"
"HydroFzi"
"HydroMxi"
"HydroMyi"
"HydroMzi"

"RdtnFxi"
"RdtnFyi"
"RdtnFzi"
"RdtnMxi"
"RdtnMyi"
"RdtnMzi"

"HdrStcFxi"
"HdrStcFyi"
"HdrStcFzi"
"HdrStcMxi"
"HdrStcMyi"
"HdrStcMzi"
END of output channels and end of file. (the word "END" must appear in the first 3 columns of this line)

Thanks for the attention,
Lorenzo.

Dear Lorenzo,

Looking at your input file, it looks like you zeroed-out all terms from the strip-theory solution except for flooded/ballasted members. It is these terms that are included in HydroFxi that are not included in WavesFxi + AddFxi + RdtnFxi + HdrStcFxi.

Best regards,