Project Soyuz 7k.dll

castorp · Nov 30, 2011

Urwumpe said:
The aft engines also seem to be angled inward a lot:

ja ja ja...
;-)
that's a known (and old) error in the PAO mesh that i never got around to correcting...
'will add it to the to-do list.
'any ideas/guesses as to what the actual angle off of the axis for those aft engines is supposed to be?

N_Molson · Nov 30, 2011

Lift to drag should be 0.4 (constant ratio until subsonic speeds)

Here's what I get :

Code:

Orbiter Flight Data Log Record
==============================
Columns:
	TIME:     simulation time (seconds)
	ALT:      altitude (km)
	AIRSPEED: airspeed (m/s)
	MACH:     Mach number
	TEMP:     freestream temperature (K)
	STP:      static pressure (kPa)
	DNP:      dynamic pressure (kPa)
	AOA:      angle of attack (deg)
	SLIP:     horizontal slip angle (deg)
	LIFT:     total lift force (kN)
	DRAG:     total drag force (kN)
	L/D:      lift/drag ratio
	MASS:     vessel mass (kg)

# Log started for Soyuz-12
# ____TIME _____L/D _______ALT __MACH ____AOA ___SLIP
     30.90    0.009    95.3272  27.65   179.1  -175.6
     31.90    0.009    95.1799  27.65   179.1  -175.6
     32.90    0.008    95.0326  27.66   179.1  -175.7
     33.91    0.008    94.8851  27.66   179.1  -175.7
     34.91    0.008    94.7400  27.67   179.1  -175.7
     35.91    0.008    94.5916  27.67   179.2  -175.7
     36.91    0.008    94.4444  27.68   179.2  -175.7
     37.92    0.007    94.2982  27.68   179.2  -175.8
     38.92    0.007    94.1508  27.69   179.2  -175.8
     39.93   -0.001    94.0042  27.69  -179.8  -175.8
     40.94   -0.028    93.8572  27.69  -177.1  -175.8
     41.94   -0.075    93.7104  27.70  -172.1  -175.8
     42.94   -0.125    93.5645  27.70  -166.8  -175.8
     43.94   -0.170    93.4188  27.70  -162.0  -175.7
     44.95   -0.178    93.2727  27.71  -161.2  -175.7
     45.95   -0.185    93.1267  27.71  -160.4  -175.6
     46.96   -0.187    92.9809  27.71  -159.8  -175.6
     47.97   -0.188    92.8351  27.71  -159.9  -175.6
     48.97   -0.185    92.6901  27.72  -159.5  -175.6
     49.97   -0.186    92.5449  27.72  -159.6  -175.6
     50.98   -0.186    92.3995  27.72  -159.7  -175.7
     51.98   -0.181    92.2548  27.72  -159.1  -175.6
     52.99   -0.178    92.1103  27.72  -158.8  -175.6
     53.99   -0.179    91.9653  27.73  -158.8  -175.6
     54.99   -0.176    91.8212  27.73  -158.5  -175.6
     55.99   -0.176    91.6771  27.73  -158.6  -175.7
     57.00   -0.177    91.5326  27.73  -158.7  -175.7
     58.00   -0.178    91.3885  27.73  -158.8  -175.7
     59.01   -0.179    91.2444  27.73  -158.9  -175.7
     60.01   -0.181    91.1005  27.73  -159.1  -175.7
     61.01   -0.182    90.9573  27.74  -159.2  -175.7
     62.01   -0.184    90.8143  27.74  -159.4  -175.8
     63.02   -0.186    90.6713  27.74  -159.6  -175.8
     64.02   -0.188    90.5276  27.74  -159.8  -175.8
     65.03   -0.188    90.3845  27.74  -159.9  -175.8
     66.03   -0.189    90.2415  27.74  -160.0  -175.8
     67.04   -0.189    90.0987  27.74  -160.1  -175.8
     68.04   -0.188    89.9558  27.74  -160.1  -175.8
     69.04   -0.187    89.8148  27.74  -160.2  -175.8
     70.05   -0.187    89.6718  27.74  -160.2  -175.8
     71.05   -0.186    89.5295  27.74  -160.3  -175.8
     72.05   -0.186    89.3880  27.74  -160.3  -175.9
     73.06   -0.185    89.2458  27.74  -159.5  -175.8
     74.07   -0.185    89.1031  27.74  -159.6  -175.8
     75.07   -0.188    88.9619  27.74  -159.9  -175.9
     76.07   -0.189    88.8208  27.74  -160.0  -175.9
     77.08   -0.189    88.6797  27.74  -160.0  -175.9
     78.08   -0.189    88.5388  27.74  -160.0  -175.9
     79.08   -0.188    88.3985  27.74  -160.1  -175.9
     80.09   -0.187    88.2576  27.74  -160.2  -175.9
     81.09   -0.186    88.1180  27.74  -160.3  -175.9
     82.09   -0.185    87.9767  27.74  -160.5  -176.0
     83.10   -0.183    87.8370  27.74  -160.6  -176.0
     84.11   -0.182    87.6968  27.74  -160.8  -176.0
     85.11   -0.187    87.5566  27.74  -160.3  -176.1
     86.12   -0.188    87.4165  27.74  -160.2  -176.1
     87.13   -0.187    87.2757  27.74  -160.2  -176.1
     88.14   -0.187    87.1351  27.74  -160.3  -176.1
     89.15   -0.188    86.9956  27.74  -159.8  -176.1
     90.15   -0.183    86.8563  27.74  -159.3  -176.1
     91.16   -0.187    86.7166  27.74  -160.2  -176.1
     92.17   -0.187    86.5772  27.74  -160.3  -176.1
     93.18   -0.188    86.4380  27.74  -160.1  -176.1
     94.19   -0.188    86.2992  27.74  -160.1  -176.1
     95.19   -0.188    86.1606  27.74  -160.2  -176.1
     96.20   -0.187    86.0224  27.74  -160.2  -176.1
     97.21   -0.186    85.8833  27.80  -160.3  -176.1
     98.21   -0.186    85.7457  27.78  -160.4  -176.1
     99.22   -0.185    85.6081  27.76  -160.4  -176.1
    100.23   -0.188    85.4696  27.74  -160.1  -176.1
    101.24   -0.187    85.3320  27.72  -160.2  -176.1
    102.24   -0.187    85.1960  27.70  -160.2  -176.1
    103.24   -0.189    85.0582  27.68  -160.0  -176.1
    104.25   -0.189    84.9213  27.66  -160.0  -176.1
    105.26   -0.188    84.7849  27.64  -160.1  -176.2
    106.41   -0.187    84.6480  27.62  -160.2  -176.2
    107.42   -0.186    84.4907  27.60  -160.3  -176.2
    108.42   -0.189    84.3549  27.58  -160.0  -176.2
    109.43   -0.188    84.2190  27.56  -160.1  -176.2
    110.44   -0.188    84.0822  27.54  -160.2  -176.2
    111.44   -0.188    83.9473  27.52  -160.2  -176.2
    112.45   -0.187    83.8116  27.50  -160.3  -176.3
    113.46   -0.187    83.6753  27.48  -160.2  -176.3
    114.46   -0.188    83.5404  27.46  -160.2  -176.3
    115.47   -0.188    83.4068  27.44  -160.1  -176.3
    116.47   -0.189    83.2716  27.42  -160.1  -176.3
    117.47   -0.188    83.1376  27.40  -160.1  -176.3
    118.48   -0.189    83.0033  27.38  -160.1  -176.3
    119.49   -0.188    82.8677  27.36  -160.1  -176.3
    120.50   -0.189    82.7336  27.34  -160.1  -176.3
    121.51   -0.189    82.5996  27.32  -160.0  -176.3
    122.51   -0.189    82.4665  27.30  -160.0  -176.3
    123.51   -0.189    82.3336  27.28  -160.0  -176.3
    124.52   -0.189    82.2005  27.27  -160.0  -176.3
    125.52   -0.188    82.0680  27.25  -160.1  -176.3
    126.52   -0.189    81.9357  27.23  -160.0  -176.3
    127.53   -0.189    81.8021  27.21  -160.1  -176.3
    128.54   -0.189    81.6695  27.19  -160.0  -176.3
    129.55   -0.189    81.5373  27.17  -160.1  -176.3
    130.56   -0.189    81.4041  27.15  -160.0  -176.3
    131.56   -0.189    81.2731  27.13  -160.0  -176.3
    132.56   -0.189    81.1425  27.11  -160.0  -176.4
    133.57   -0.189    81.0101  27.10  -160.0  -176.4
    134.58   -0.189    80.8787  27.08  -160.0  -176.4
    135.58   -0.189    80.7474  27.06  -160.0  -176.4
    136.59   -0.189    80.6170  27.04  -160.0  -176.4
    137.60   -0.188    80.4859  27.02  -160.1  -176.4
    138.60   -0.188    80.3566  27.00  -160.1  -176.4
    139.60   -0.189    80.2264  26.98  -160.1  -176.4
    140.60   -0.189    80.0969  26.96  -160.1  -176.4
    141.60   -0.189    79.9678  26.95  -160.1  -176.4
    142.61   -0.188    79.8381  26.93  -160.1  -176.4
    143.62   -0.189    79.7087  26.91  -160.0  -176.4
    144.63   -0.189    79.5792  26.89  -160.0  -176.4
    145.63   -0.189    79.4501  26.87  -160.0  -176.4
    146.64   -0.189    79.3218  26.85  -160.0  -176.4
    147.65   -0.189    79.1935  26.83  -160.0  -176.4
    148.65   -0.189    79.0653  26.82  -160.0  -176.4
    149.65   -0.189    78.9376  26.80  -160.0  -176.4
    150.65   -0.189    78.8111  26.78  -160.0  -176.4
    151.65   -0.189    78.6833  26.76  -160.0  -176.4
    152.65   -0.189    78.5564  26.74  -159.9  -176.4
    153.66   -0.188    78.4295  26.72  -159.9  -176.5
    154.66   -0.187    78.3028  26.71  -159.8  -176.5
    155.67   -0.187    78.1765  26.69  -159.7  -176.5
    156.68   -0.186    78.0496  26.67  -159.7  -176.5
    157.68   -0.187    77.9234  26.65  -159.8  -176.5
    158.69   -0.188    77.7970  26.63  -159.9  -176.5
    159.70   -0.189    77.6710  26.61  -159.9  -176.5
    160.71   -0.189    77.5448  26.59  -160.0  -176.5
    161.72   -0.189    77.4191  26.58  -160.0  -176.5
    162.72   -0.188    77.2949  26.56  -159.9  -176.5
    163.73   -0.188    77.1692  26.54  -159.9  -176.5
    164.74   -0.189    77.0444  26.52  -160.0  -176.5
    165.75   -0.188    76.9208  26.50  -159.9  -176.5
    166.75   -0.189    76.7967  26.48  -160.0  -176.5
    167.75   -0.189    76.6728  26.47  -160.1  -176.5
    168.76   -0.188    76.5500  26.45  -160.1  -176.5
    169.77   -0.188    76.4254  26.43  -160.1  -176.5
    170.78   -0.188    76.3021  26.41  -160.1  -176.5
    171.79   -0.188    76.1784  26.39  -160.1  -176.6
    172.80   -0.188    76.0555  26.37  -160.2  -176.6
    173.80   -0.187    75.9335  26.36  -160.2  -176.6
    174.81   -0.187    75.8112  26.34  -160.3  -176.6
    175.83   -0.188    75.6891  26.32  -160.2  -176.6
    176.83   -0.188    75.5669  26.30  -160.1  -176.6
    177.84   -0.189    75.4454  26.28  -160.0  -176.6
    178.85   -0.188    75.3241  26.26  -160.1  -176.6
    179.85   -0.188    75.2036  26.25  -160.2  -176.6
    180.85   -0.188    75.0840  26.23  -160.1  -176.6
    181.86   -0.188    74.9641  26.21  -160.1  -176.6
    182.87   -0.189    74.8445  26.19  -160.1  -176.6
    183.87   -0.188    74.7243  26.17  -160.1  -176.6
    184.88   -0.188    74.6055  26.15  -160.2  -176.6
    185.88   -0.189    74.4859  26.13  -160.1  -176.6
    186.89   -0.188    74.3675  26.12  -160.1  -176.6
    187.89   -0.188    74.2487  26.10  -160.2  -176.6
    188.90   -0.188    74.1307  26.08  -160.1  -176.6
    189.91   -0.189    74.0123  26.06  -160.1  -176.7
    190.91   -0.189    73.8949  26.04  -160.0  -176.7
    191.92   -0.188    73.7774  26.02  -160.1  -176.7
    192.92   -0.188    73.6607  26.00  -160.2  -176.7
    193.93   -0.188    73.5444  25.99  -160.2  -176.7
    194.93   -0.189    73.4276  25.97  -160.0  -176.7
    195.94   -0.189    73.3116  25.95  -160.0  -176.7
    196.95   -0.189    73.1946  25.93  -160.1  -176.7
    197.96   -0.188    73.0783  25.91  -160.1  -176.7
    198.97   -0.189    72.9631  25.89  -160.1  -176.7
    199.97   -0.189    72.8484  25.87  -160.0  -176.7
    200.97   -0.189    72.7337  25.85  -160.0  -176.7
    201.97   -0.189    72.6197  25.84  -159.9  -176.7
    202.98   -0.189    72.5058  25.82  -159.9  -176.7
    203.98   -0.189    72.3924  25.80  -160.0  -176.7
    204.99   -0.189    72.2791  25.78  -160.0  -176.8
    205.99   -0.189    72.1663  25.76  -160.0  -176.8
    206.99   -0.189    72.0542  25.74  -160.0  -176.8
    208.00   -0.189    71.9412  25.73  -160.0  -176.8
    209.00   -0.188    71.8296  25.70  -160.1  -176.8
    210.00   -0.188    71.7175  25.68  -160.2  -176.8
    211.01   -0.188    71.6064  25.66  -160.1  -176.8
    212.02   -0.188    71.4948  25.63  -160.1  -176.8
    213.02   -0.188    71.3843  25.61  -160.1  -176.8
    214.03   -0.189    71.2732  25.58  -160.0  -176.8
    215.03   -0.188    71.1635  25.56  -159.9  -176.8
    216.03   -0.189    71.0540  25.53  -160.0  -176.8
    217.04   -0.188    70.9439  25.51  -160.1  -176.8
    218.05   -0.187    70.8348  25.48  -160.2  -176.9
    219.05   -0.187    70.7254  25.46  -160.3  -176.9
    220.05   -0.187    70.6170  25.44  -160.2  -176.9
    221.06   -0.189    70.5084  25.41  -160.1  -176.9
    222.07   -0.188    70.4005  25.39  -160.1  -176.9
    223.08   -0.188    70.2924  25.36  -160.2  -176.9
    224.08   -0.189    70.1848  25.34  -160.0  -176.9
    225.10   -0.189    70.0774  25.31  -160.1  -176.9
    226.11   -0.189    69.9695  25.29  -160.0  -176.9
    227.12   -0.188    69.8635  25.26  -160.2  -176.9
    228.13   -0.188    69.7571  25.24  -160.2  -176.9
    229.13   -0.189    69.6518  25.21  -160.1  -176.9
    230.14   -0.189    69.5459  25.19  -160.0  -176.9
    231.14   -0.188    69.4414  25.16  -160.1  -177.0
    232.15   -0.189    69.3367  25.14  -160.0  -177.0
    233.15   -0.189    69.2329  25.12  -160.0  -177.0
    234.16   -0.189    69.1286  25.09  -159.9  -177.0
    235.17   -0.189    69.0253  25.07  -159.9  -177.0
    236.18   -0.188    68.9215  25.04  -159.8  -177.0
    237.18   -0.187    68.8186  25.02  -159.7  -177.0
    238.19   -0.188    68.7164  24.99  -159.8  -177.0
    239.20   -0.189    68.6141  24.97  -160.0  -177.0
    239.72   -0.189    68.5611  24.95  -160.0  -177.0
    240.72   -0.188    68.4596  24.93  -160.1  -177.0
    241.73   -0.189    68.3586  24.90  -160.0  -177.0
    242.73   -0.189    68.2585  24.88  -160.0  -177.0
    243.74   -0.189    68.1574  24.85  -160.0  -177.1
    244.75   -0.189    68.0569  24.83  -160.0  -177.1
    245.75   -0.189    67.9571  24.80  -160.0  -177.1
    246.76   -0.189    67.8576  24.78  -160.0  -177.1
    247.77   -0.189    67.7584  24.75  -160.0  -177.1
    248.77   -0.189    67.6601  24.73  -160.0  -177.1
    249.78   -0.189    67.5614  24.70  -160.0  -177.1
    250.79   -0.189    67.4633  24.68  -160.0  -177.1
    251.80   -0.189    67.3651  24.65  -160.0  -177.1
    252.81   -0.189    67.2679  24.62  -160.0  -177.1
    253.81   -0.189    67.1718  24.60  -160.0  -177.1
    254.82   -0.189    67.0745  24.57  -159.9  -177.1
    255.83   -0.189    66.9784  24.55  -159.9  -177.2
    256.83   -0.189    66.8831  24.52  -160.0  -177.2
    257.83   -0.189    66.7877  24.50  -160.0  -177.2
    258.84   -0.189    66.6933  24.47  -160.0  -177.2
    259.84   -0.189    66.5987  24.44  -160.0  -177.2
    260.85   -0.189    66.5048  24.42  -160.0  -177.2
    261.85   -0.189    66.4105  24.39  -160.0  -177.2
    262.86   -0.189    66.3165  24.37  -160.0  -177.2
    263.88   -0.189    66.2229  24.34  -160.0  -177.2
    264.89   -0.189    66.1296  24.31  -160.0  -177.2
    265.90   -0.189    66.0367  24.29  -160.0  -177.3
    266.91   -0.189    65.9442  24.26  -159.9  -177.3
    267.93   -0.188    65.8525  24.23  -159.9  -177.3
    268.94   -0.188    65.7599  24.21  -159.8  -177.3
    269.95   -0.189    65.6693  24.18  -160.0  -177.3
    270.95   -0.189    65.5783  24.15  -160.0  -177.3
    271.95   -0.189    65.4886  24.13  -160.0  -177.3
    272.96   -0.188    65.3986  24.10  -160.1  -177.3
    273.97   -0.188    65.3088  24.07  -160.1  -177.3
    274.97   -0.188    65.2197  24.05  -160.1  -177.3
    275.98   -0.189    65.1309  24.02  -160.1  -177.4
    276.99   -0.189    65.0423  23.99  -160.0  -177.4
    278.00   -0.189    64.9540  23.97  -160.0  -177.4
    279.00   -0.189    64.8661  23.94  -160.0  -177.4
    280.01   -0.189    64.7789  23.91  -160.0  -177.4
    281.02   -0.189    64.6917  23.89  -160.0  -177.4
    282.02   -0.189    64.6054  23.86  -160.0  -177.4
    283.02   -0.189    64.5207  23.83  -160.0  -177.4
    284.03   -0.189    64.4336  23.80  -160.0  -177.4
    285.03   -0.189    64.3485  23.78  -160.0  -177.5
    286.04   -0.189    64.2631  23.75  -160.0  -177.5
    287.04   -0.189    64.1785  23.72  -160.0  -177.5
    288.04   -0.189    64.0943  23.69  -160.0  -177.5
    289.05   -0.189    64.0097  23.66  -160.0  -177.5
    290.06   -0.189    63.9260  23.64  -159.9  -177.5
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    564.78    0.058    33.1265   8.81   173.9   179.6
    565.79    0.095    32.8928   8.71   170.0   179.2
    566.80    0.092    32.6496   8.57   170.3   179.2
    567.80    0.051    32.4004   8.44   174.7   179.4
    568.81   -0.013    32.1435   8.30  -178.5   179.8
    569.82   -0.072    31.8827   8.16  -172.4  -179.7
    570.82   -0.098    31.6220   8.03  -169.7  -179.3
    571.82   -0.083    31.3624   7.89  -171.3  -179.2
    572.82   -0.033    31.1043   7.75  -176.6  -179.3
    573.83    0.035    30.8391   7.61   176.3  -179.7
    574.84    0.086    30.5688   7.47   170.9   179.8
    575.84    0.099    30.2938   7.33   169.6   179.4
    576.85    0.069    30.0094   7.19   172.8   179.2
    577.86    0.008    29.7201   7.05   179.2   179.2
    578.87   -0.058    29.4259   6.91  -173.9   179.6
    579.87   -0.096    29.1341   6.77  -169.8  -179.9
    580.87   -0.093    28.8446   6.62  -170.2  -179.5
    581.88   -0.049    28.5570   6.48  -174.9  -179.2
    582.88    0.019    28.2696   6.34   177.9  -179.1
    583.88    0.078    27.9788   6.20   171.8  -179.4
    584.88    0.103    27.6815   6.06   169.2  -179.9
    585.89    0.083    27.3770   5.91   171.4   179.6
    586.90    0.025    27.0669   5.77   177.4   179.2
    587.91   -0.045    26.7561   5.63  -175.2   179.1
    588.91   -0.094    26.4471   5.49  -170.1   179.3
    589.92   -0.102    26.1402   5.35  -169.3   179.8
    590.92   -0.067    25.8381   5.21  -173.0  -179.7
    591.93   -0.001    25.5370   5.07   180.0  -179.2
    592.93    0.067    25.2356   4.94   172.9  -179.0
# Log stopped for Soyuz-12

Urwumpe · Nov 30, 2011

So you have too little lift.

N_Molson · Nov 30, 2011

So you have too little lift.

Wow, I wasn't thinking that such a shape could generate that much lift !

But it fits with the "double dip" reentries techniques like Komarov did on Soyuz-1, with that much lift I guess you can bounce, then get a steeper reentry angle.

Urwumpe · Nov 30, 2011

N_Molson said:
Wow, I wasn't thinking that such a shape could generate that much lift !

But it fits with the "double dip" reentries techniques like Komarov did on Soyuz-1, with that much lift I guess you can bounce, then get a steeper reentry angle.

Yes, but 0.4 L/D at supersonic speeds isn't that good at all, it is a fairly good value for a capsule (even slightly better than Apollo), but the Shuttle for example had an L/D of 1.6, Buran should even have been slightly better because of the optimized tile placement.

N_Molson · Nov 30, 2011

Corrected the lift coefficients, it works, it is possible to make a small "bounce" and of course allows much more control on the capsule trajectory.

(constant ratio until subsonic speeds)

I think that the capsule currently "stalls" around Mach 8-9. What's the way to correct this, wing aspect ?

Urwumpe · Nov 30, 2011

N_Molson said:
I think that the capsule currently "stalls" around Mach 8-9. What's the way to correct this, wing aspect ?

Keep AOA at 20°, if you look at the data, the angle changes a lot at this point, no idea why.

---------- Post added at 08:56 PM ---------- Previous post was at 08:49 PM ----------

BTW: Can this PDF be interesting to somebody interested in making a Soyuz-TM spacecraft?

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19940012599_1994012599.pdf

N_Molson · Nov 30, 2011

It's because the RCS thrusters are overrun by the aerodynamic moment. So I should reduce that moment coefficients so that the thrusters can keep 20° of AOA until Mach 1 ? Also, do you know if there is a "lower altitude limit" for the use of those peroxyde thrusters ?

Urwumpe · Nov 30, 2011

N_Molson said:
It's because the RCS thrusters are overrun by the aerodynamic moment. So I should reduce that moment coefficients so that the thrusters can keep 20° of AOA until Mach 1 ? Also, do you know if there is a "lower altitude limit" for the use of those peroxyde thrusters ?

They should have a pretty strong dependency on atmospheric pressure, but it doesn't really matter, they should produce enough thrust for small maneuvers even at sea level.

And your moment function is then completely wrong - at 20° AOA you should have 0 Nm torque by aerodynamics. Any deviation from 20° would get corrected with relative weak moments, but if you have enough dynamic pressure for 4g deceleration, even weak moments will rotate you into the right orientation in less than 3 seconds.

diogom · Nov 30, 2011

Got a prob in docking. Probe is deployed, but the Soyuz goes right past the docking target, no capture. Using majortom's Salyut 6.

Edit: Tryed the "docked" scn. I undocked and re-docked. Probe deployed, I dock, and when I retract the probe, the HUD says there is hard-dock, but the Soyuz starts to fly away.

N_Molson · Nov 30, 2011

Edit: Tryed the "docked" scn. I undocked and re-docked. Probe deployed, I dock, and when I retract the probe, the HUD says there is hard-dock, but the Soyuz starts to fly away.

Issue#025

Reproduced that one. Sometimes it works, sometimes it doesn't. Probably frame-rate dependant, will try to find a workaround. -> fixed, tbc

---------- Post added at 11:15 PM ---------- Previous post was at 10:25 PM ----------

I modified the lift & moment coefficients and got better results, sticking at 0.4 of L/D :

BTW, that "reentry" didn't exceed 1.8G, which I find a little weird (why don't they do that in the real life ?), also as a consequence the landing zone was overshot by 3500 kilometers :

Code:

Orbiter Flight Data Log Record
==============================
Columns:
	TIME:     simulation time (seconds)
	ALT:      altitude (km)
	AIRSPEED: airspeed (m/s)
	MACH:     Mach number
	TEMP:     freestream temperature (K)
	STP:      static pressure (kPa)
	DNP:      dynamic pressure (kPa)
	AOA:      angle of attack (deg)
	SLIP:     horizontal slip angle (deg)
	LIFT:     total lift force (kN)
	DRAG:     total drag force (kN)
	L/D:      lift/drag ratio
	MASS:     vessel mass (kg)

# Log started for Soyuz-12
# ____TIME _______ALT __MACH ____AOA ___SLIP _____L/D
    225.45    68.8705  25.09  -179.5  -178.4   -0.011
    226.45    68.7383  25.07  -179.9  -178.5   -0.001
    227.46    68.6066  25.04   179.5  -178.7    0.010
    228.46    68.4736  25.01   179.2  -178.8    0.016
    229.47    68.3411  24.98   179.1  -179.0    0.019
    230.48    68.2082  24.95   179.1  -179.2    0.017
    231.48    68.0750  24.92   179.5  -179.4    0.011
    232.49    67.9419  24.89  -179.6  -179.7   -0.008
    233.49    67.8089  24.86  -177.9  -179.9   -0.042
    234.49    67.6755  24.83  -175.6   179.8   -0.088
    235.50    67.5433  24.80  -172.9   179.6   -0.143
    236.50    67.4100  24.76  -170.3   179.3   -0.194
    237.51    67.2777  24.73  -167.9   179.1   -0.244
    238.51    67.1459  24.70  -165.5   178.9   -0.292
    239.51    67.0152  24.67  -163.1   178.7   -0.339
    240.52    66.8852  24.64  -162.0   178.7   -0.360
    241.53    66.7556  24.61  -161.4   178.7   -0.373
    242.53    66.6278  24.58  -160.3   178.7   -0.394
    243.54    66.5010  24.55  -160.4   178.7   -0.393
    244.55    66.3746  24.52  -160.5   178.8   -0.391
    245.56    66.2509  24.49  -160.6   178.9   -0.390
    246.57    66.1280  24.46  -160.6   178.9   -0.388
    247.58    66.0057  24.43  -160.7   178.9   -0.387
    248.58    65.8856  24.40  -160.8   179.0   -0.385
    249.59    65.7664  24.36  -160.9   179.1   -0.383
    250.60    65.6481  24.33  -160.8   179.2   -0.384
    251.60    65.5322  24.30  -160.7   179.3   -0.387
    252.62    65.4173  24.27  -160.6   179.5   -0.389
    253.62    65.3031  24.24  -160.5   179.7   -0.391
    254.63    65.1912  24.21  -160.4   179.9   -0.393
    255.64    65.0805  24.18  -160.3  -179.9   -0.394
    256.65    64.9704  24.15  -160.2  -179.7   -0.396
    257.65    64.8628  24.12  -160.2  -179.5   -0.397
    258.67    64.7565  24.09  -160.2  -179.3   -0.397
    259.68    64.6509  24.06  -160.1  -179.2   -0.398
    260.68    64.5483  24.03  -160.1  -179.0   -0.398
    261.69    64.4466  24.00  -160.1  -179.0   -0.398
    262.70    64.3458  23.97  -160.2  -178.9   -0.397
    263.70    64.2476  23.94  -160.2  -178.9   -0.397
    264.71    64.1505  23.91  -160.2  -179.0   -0.396
    265.72    64.0545  23.88  -160.3  -179.0   -0.394
    266.72    63.9610  23.85  -160.4  -179.2   -0.393
    267.73    63.8687  23.82  -160.5  -179.3   -0.391
    268.74    63.7773  23.79  -160.6  -179.5   -0.389
    269.74    63.6885  23.76  -160.7  -179.7   -0.386
    270.75    63.6009  23.73  -160.9  -179.9   -0.383
    271.75    63.5150  23.70  -160.8   179.9   -0.384
    272.76    63.4312  23.68  -160.7   179.7   -0.387
    273.76    63.3478  23.65  -160.5   179.5   -0.390
    274.76    63.2670  23.62  -160.4   179.3   -0.392
    275.81    63.2017  23.59  -160.3   179.2   -0.394
    276.81    63.1066  23.56  -160.2   179.0   -0.396
    277.81    63.0310  23.53  -160.2   179.0   -0.397
    278.82    62.9559  23.50  -160.1   178.9   -0.398
    279.82    62.8832  23.47  -160.1   179.0   -0.398
    280.83    62.8120  23.44  -160.1   179.0   -0.398
    281.83    62.7427  23.42  -160.1   179.2   -0.398
    282.83    62.6755  23.39  -160.1   179.3   -0.398
    283.84    62.6088  23.36  -160.2   179.5   -0.397
    284.84    62.5445  23.33  -160.2   179.7   -0.396
    285.85    62.4818  23.30  -160.3   179.9   -0.395
    286.85    62.4209  23.28  -160.4  -179.9   -0.393
    287.85    62.3618  23.25  -160.5  -179.6   -0.391
    288.86    62.3034  23.22  -160.4  -179.4   -0.393
    289.87    62.2473  23.19  -160.2  -179.3   -0.395
    290.87    62.1930  23.17  -160.1  -179.1   -0.398
    291.87    62.1403  23.14  -160.0  -179.0   -0.400
    292.89    62.0890  23.11  -159.9  -179.0   -0.399
    293.90    62.0390  23.08  -159.9  -179.0   -0.398
    294.90    61.9914  23.06  -159.9  -179.0   -0.398
    295.90    61.9456  23.03  -159.9  -179.1   -0.399
    296.90    61.9013  23.00  -160.0  -179.3   -0.400
    297.91    61.8586  22.98  -160.1  -179.4   -0.398
    298.91    61.8176  22.95  -160.3  -179.6   -0.395
    299.92    61.7783  22.93  -160.4  -179.9   -0.392
    300.93    61.7400  22.90  -160.6   179.9   -0.389
    301.93    61.7037  22.87  -160.7   179.7   -0.386
    302.94    61.6690  22.85  -160.7   179.5   -0.387
    303.94    61.6358  22.82  -160.4   179.3   -0.392
    304.94    61.6042  22.80  -160.1   179.1   -0.398
    305.95    61.5741  22.77  -159.9   179.0   -0.398
    306.95    61.5457  22.75  -159.7   179.0   -0.395
    307.96    61.5185  22.72  -159.6   179.0   -0.393
    308.97    61.4930  22.70  -159.7   179.0   -0.394
    309.98    61.4689  22.67  -159.8   179.1   -0.397
    310.99    61.4465  22.65  -160.1   179.3   -0.399
    311.99    61.4256  22.62  -160.3   179.4   -0.394
    313.00    61.4061  22.60  -160.6   179.6   -0.389
    314.01    61.3880  22.58  -160.9   179.9   -0.383
    315.01    61.3714  22.55  -160.9  -179.9   -0.384
    316.01    61.3560  22.53  -160.9  -179.7   -0.383
    317.02    61.3420  22.51  -160.8  -179.5   -0.385
    318.03    61.3293  22.48  -160.4  -179.3   -0.392
    319.03    61.3180  22.46  -160.0  -179.1   -0.400
    320.04    61.3081  22.44  -160.0  -179.1   -0.400
    321.04    61.2995  22.41  -160.1  -179.2   -0.399
    322.04    61.2923  22.39  -160.1  -179.2   -0.399
    323.05    61.2863  22.37  -160.1  -179.2   -0.398
    324.05    61.2817  22.35  -160.1  -179.2   -0.398
    325.06    61.2784  22.33  -160.1  -179.2   -0.399
    326.07    61.2763  22.30  -160.0  -179.2   -0.399
    327.07    61.2754  22.28  -160.1  -179.2   -0.399
    328.08    61.2758  22.26  -160.1  -179.2   -0.398
    329.09    61.2774  22.24  -160.0  -179.2   -0.399
    330.10    61.2802  22.22  -160.1  -179.2   -0.399
    331.10    61.2841  22.20  -160.0  -179.2   -0.400
    332.11    61.2891  22.18  -160.1  -179.2   -0.399
    333.11    61.2953  22.16  -160.1  -179.2   -0.398
    334.12    61.3026  22.14  -160.2  -179.2   -0.396
    335.12    61.3108  22.12  -160.2  -179.2   -0.397
    336.13    61.3201  22.10  -159.9  -179.2   -0.399
    337.13    61.3304  22.08  -159.8  -179.2   -0.397
    338.14    61.3418  22.06  -159.9  -179.3   -0.399
    339.14    61.3540  22.04  -160.1  -179.3   -0.399
    340.14    61.3672  22.02  -160.2  -179.4   -0.396
    341.15    61.3813  22.00  -160.4  -179.5   -0.393
    342.16    61.3963  21.98  -160.5  -179.7   -0.390
    343.16    61.4119  21.96  -160.6  -179.9   -0.389
    344.17    61.4287  21.95  -160.4   180.0   -0.392
    345.17    61.4459  21.93  -160.2   179.8   -0.396
    346.18    61.4641  21.91  -160.0   179.6   -0.399
    347.19    61.4831  21.89  -159.9   179.5   -0.398
    348.19    61.5027  21.87  -159.8   179.4   -0.396
    349.21    61.5231  21.86  -159.7   179.3   -0.396
    350.21    61.5443  21.84  -159.8   179.2   -0.397
    351.22    61.5659  21.82  -159.9   179.2   -0.399
    352.23    61.5883  21.80  -160.1   179.2   -0.399
    353.24    61.6114  21.79  -160.0   179.3   -0.400
    354.24    61.6349  21.77  -159.8   179.4   -0.396
    355.25    61.6589  21.75  -159.6   179.5   -0.394
    356.26    61.6837  21.74  -159.6   179.6   -0.393
    357.26    61.7088  21.72  -159.7   179.8   -0.395
    358.27    61.7344  21.71  -159.9   179.9   -0.399
    359.28    61.7606  21.69  -160.2  -179.9   -0.397
    360.29    61.7870  21.67  -160.4  -179.7   -0.392
    361.30    61.8138  21.66  -160.7  -179.6   -0.387
    362.31    61.8412  21.64  -160.7  -179.4   -0.387
    363.31    61.8686  21.63  -160.6  -179.3   -0.389
    364.32    61.8963  21.61  -160.5  -179.3   -0.391
    365.33    61.9245  21.60  -160.4  -179.2   -0.393
    366.34    61.9528  21.58  -160.3  -179.2   -0.394
    367.34    61.9810  21.57  -160.1  -179.2   -0.399
    368.35    62.0099  21.55  -160.0  -179.2   -0.399
    369.35    62.0388  21.54  -160.1  -179.3   -0.398
    370.36    62.0679  21.52  -160.2  -179.3   -0.396
    371.37    62.0973  21.51  -160.3  -179.4   -0.394
    372.37    62.1265  21.49  -160.4  -179.5   -0.392
    373.39    62.1561  21.48  -160.6  -179.7   -0.389
    374.40    62.1858  21.47  -160.7  -179.8   -0.386
    375.40    62.2151  21.45  -160.9   180.0   -0.383
    376.41    62.2446  21.44  -161.0   179.8   -0.381
    377.42    62.2742  21.42  -160.7   179.7   -0.387
    378.43    62.3034  21.41  -160.2   179.5   -0.397
    379.43    62.3326  21.40  -160.2   179.5   -0.397
    380.44    62.3618  21.38  -160.3   179.6   -0.395
    381.44    62.3907  21.37  -160.4   179.6   -0.393
    382.45    62.4197  21.36  -160.3   179.7   -0.394
    383.45    62.4484  21.34  -160.1   179.7   -0.398
    384.46    62.4769  21.33  -160.0   179.8   -0.400
    385.46    62.5056  21.32  -160.0   179.8   -0.400
    386.47    62.5339  21.30  -160.1   179.8   -0.398
    387.48    62.5620  21.29  -160.2   179.8   -0.396
    388.49    62.5901  21.28  -160.3   179.8   -0.394
    389.49    62.6175  21.26  -160.4   179.9   -0.392
    390.50    62.6448  21.25  -160.6   179.9   -0.389
    391.51    62.6719  21.24  -160.7   179.9   -0.386
    392.51    62.6984  21.22  -160.5   180.0   -0.391
    393.52    62.7246  21.21  -160.2  -180.0   -0.396
    394.53    62.7506  21.20  -160.0  -179.9   -0.400
    395.53    62.7760  21.18  -159.8  -179.9   -0.396
    396.54    62.8011  21.17  -159.6  -179.9   -0.393
    397.54    62.8256  21.16  -159.6  -179.8   -0.392
    398.55    62.8498  21.15  -159.6  -179.8   -0.393
    399.55    62.8735  21.13  -159.8  -179.8   -0.396
    400.56    62.8964  21.12  -160.0  -179.8   -0.400
    401.56    62.9192  21.11  -160.2  -179.8   -0.396
    402.56    62.9414  21.10  -160.5  -179.8   -0.391
    403.57    62.9630  21.08  -160.7  -179.8   -0.386
    404.58    62.9842  21.07  -161.0  -179.8   -0.380
    405.58    63.0045  21.06  -161.2  -179.8   -0.376
    406.59    63.0243  21.04  -161.3  -179.8   -0.375
    407.60    63.0434  21.03  -161.4  -179.8   -0.373
    408.61    63.0617  21.02  -161.5  -179.9   -0.370
    409.61    63.0791  21.01  -161.3  -179.9   -0.375
    410.62    63.0960  20.99  -160.6  -179.9   -0.389
    411.62    63.1120  20.98  -160.4  -179.9   -0.392
    412.63    63.1273  20.97  -160.1  -179.9   -0.399
    413.64    63.1421  20.95  -160.1  -179.9   -0.398
    414.64    63.1560  20.94  -160.2  -179.9   -0.396
    415.66    63.1693  20.93  -160.3  -179.9   -0.394
    416.66    63.1818  20.91  -160.4  -179.9   -0.392
    417.67    63.1936  20.90  -160.6  -180.0   -0.390
    418.67    63.2044  20.89  -160.7  -180.0   -0.387
    419.68    63.2145  20.87  -160.9  -180.0   -0.384
    420.69    63.2237  20.86  -160.5   180.0   -0.390
    421.70    63.2321  20.85  -158.7   180.0   -0.376
    422.71    63.2395  20.83  -158.6   180.0   -0.375
    423.71    63.2460  20.82  -160.1   180.0   -0.399
    424.71    63.2517  20.81  -160.2   180.0   -0.396
    425.72    63.2565  20.79  -160.4   180.0   -0.393
    426.73    63.2604  20.78  -160.5   180.0   -0.390
    427.74    63.2634  20.76  -160.5   180.0   -0.391
    428.74    63.2654  20.75  -160.2   180.0   -0.396
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    710.25    42.9653  10.70  -160.0   180.0   -0.400
    711.26    42.8958  10.66  -160.1   180.0   -0.398
    712.26    42.8252  10.61  -160.3   180.0   -0.395
    713.27    42.7543  10.57  -160.5   180.0   -0.391
    714.27    42.6824  10.52  -160.7   180.0   -0.386
    715.28    42.6096  10.47  -160.5   180.0   -0.390
    716.28    42.5359  10.43  -160.3  -180.0   -0.394
    717.29    42.4610  10.38  -160.2  -180.0   -0.397
    718.30    42.3850  10.34  -160.1  -180.0   -0.399
    719.30    42.3088  10.29  -160.0  -180.0   -0.400
    720.30    42.2318  10.25  -160.0  -180.0   -0.400
    721.31    42.1539  10.20  -160.0  -180.0   -0.400
    722.31    42.0753  10.15  -160.0  -180.0   -0.400
    723.32    41.9957  10.11  -159.8  -180.0   -0.397
    724.32    41.9147  10.06  -159.8  -180.0   -0.396
    725.32    41.8335  10.02  -159.9   180.0   -0.399
    726.33    41.7514   9.97  -160.1   180.0   -0.399
    727.33    41.6684   9.92  -160.1   180.0   -0.399
    728.33    41.5846   9.88  -160.2   180.0   -0.397
    729.34    41.4996   9.83  -160.0   180.0   -0.400
    730.35    41.4134   9.79  -159.7   180.0   -0.395
    731.36    41.3264   9.74  -159.7   180.0   -0.394
    732.36    41.2391   9.69  -159.8   180.0   -0.396
    733.37    41.1504   9.65  -159.8   180.0   -0.397
    734.37    41.0614   9.60  -159.6  -180.0   -0.393
    735.38    40.9708   9.55  -159.0  -180.0   -0.382
    736.38    40.8794   9.50  -159.1  -180.0   -0.384
    737.39    40.7873   9.46  -159.9  -180.0   -0.398
    738.39    40.6936   9.41  -160.9  -180.0   -0.383
    739.40    40.5994   9.36  -160.8  -180.0   -0.385
    740.40    40.5044   9.32  -160.3  -180.0   -0.394
    741.40    40.4086   9.27  -160.1  -180.0   -0.399
    742.40    40.3118   9.22  -159.8  -180.0   -0.397
    743.41    40.2141   9.17  -160.0  -180.0   -0.400
    744.42    40.1153   9.13  -160.1  -180.0   -0.398
    745.42    40.0157   9.08  -160.2  -180.0   -0.397
    746.43    39.9153   9.03  -159.9   180.0   -0.399
    747.44    39.8144   8.98  -159.7   180.0   -0.396
    748.45    39.7128   8.93  -159.8   180.0   -0.397
    749.45    39.6106   8.88  -160.1   180.0   -0.399
    750.46    39.5073   8.83  -160.3   180.0   -0.394
    751.47    39.4035   8.78  -160.3   180.0   -0.395
    752.48    39.2989   8.74  -160.0   180.0   -0.400
    753.48    39.1944   8.69  -159.8   180.0   -0.396
    754.49    39.0886   8.64  -159.8  -180.0   -0.396
    755.49    38.9823   8.59  -160.0  -180.0   -0.400
    756.50    38.8751   8.54  -160.3  -180.0   -0.394
    757.66    38.7742   8.49  -160.3  -180.0   -0.394
    758.67    38.6420   8.43  -160.2  -180.0   -0.397
    759.68    38.5332   8.38  -159.7  -180.0   -0.394
    760.68    38.4236   8.33  -159.8  -180.0   -0.396
    761.69    38.3133   8.28  -160.1  -180.0   -0.398
    762.69    38.2034   8.23  -160.2  -180.0   -0.397
    763.70    38.0921   8.17  -160.2  -180.0   -0.396
    764.71    37.9805   8.12  -160.2  -180.0   -0.397
    765.71    37.8689   8.07  -160.0  -180.0   -0.400
    766.72    37.7562   8.02  -160.0  -180.0   -0.400
    767.72    37.6434   7.97  -160.0  -180.0   -0.400
    768.73    37.5302   7.92  -160.0   180.0   -0.400
    769.74    37.4161   7.86  -160.2   180.0   -0.397
    770.75    37.3019   7.81  -160.0   180.0   -0.400
    771.75    37.1876   7.76  -159.8   180.0   -0.397
    772.75    37.0730   7.70  -160.0   180.0   -0.400
    773.76    36.9579   7.65  -160.0   180.0   -0.400
    774.76    36.8434   7.60  -159.9   180.0   -0.399
    775.78    36.7266   7.54  -160.0  -180.0   -0.400
    776.78    36.6106   7.49  -160.1  -180.0   -0.398
    777.79    36.4941   7.44  -160.0  -180.0   -0.400
    778.80    36.3772   7.38  -159.9  -180.0   -0.399
    779.80    36.2604   7.33  -160.0  -180.0   -0.400
    780.81    36.1434   7.28  -160.0  -180.0   -0.400
    781.81    36.0259   7.22  -160.1  -180.0   -0.399
    782.82    35.9081   7.17  -160.1  -180.0   -0.398
    783.83    35.7899   7.11  -160.2  -180.0   -0.397
    784.83    35.6724   7.06  -160.2  -180.0   -0.396
    785.85    35.5529   7.00  -160.3  -180.0   -0.394
    786.86    35.4332   6.95  -160.1  -180.0   -0.399
    787.88    35.3133   6.89  -160.0  -180.0   -0.400
    788.89    35.1931   6.84  -160.1  -180.0   -0.399
    789.90    35.0730   6.78  -160.2  -180.0   -0.396
    790.92    34.9524   6.72  -160.4  -180.0   -0.392
    791.93    34.8315   6.67  -160.7  -180.0   -0.386
    792.95    34.7100   6.61  -161.1  -180.0   -0.380
    793.95    34.5887   6.56  -161.5   180.0   -0.372
    794.95    34.4677   6.50  -160.9   180.0   -0.383
    795.95    34.3458   6.45  -159.6   180.0   -0.394
    796.96    34.2237   6.39  -159.3   180.0   -0.387
    797.96    34.1012   6.34  -160.3   180.0   -0.394
    798.96    33.9785   6.28  -160.2   180.0   -0.396
    799.97    33.8556   6.22  -160.2  -180.0   -0.397
    800.97    33.7325   6.17  -160.2  -180.0   -0.396
    801.97    33.6100   6.11  -160.3  -180.0   -0.394
    802.99    33.4852   6.06  -160.0  -180.0   -0.400
    804.00    33.3604   6.00  -159.8  -180.0   -0.397
    805.01    33.2351   5.94  -159.9  -180.0   -0.398
    806.03    33.1098   5.89  -160.0  -180.0   -0.400
    807.04    32.9844   5.85  -160.0  -180.0   -0.400
    808.05    32.8590   5.79  -160.1  -180.0   -0.398
    809.06    32.7331   5.73  -160.2  -180.0   -0.396
    810.07    32.6070   5.67  -160.3  -180.0   -0.395
    811.09    32.4805   5.61  -160.4  -180.0   -0.393
    812.10    32.3537   5.55  -160.4  -180.0   -0.393
    813.11    32.2269   5.49  -160.1  -180.0   -0.399
    814.12    32.0998   5.44  -160.1  -180.0   -0.399
    815.14    31.9725   5.38  -160.2  -180.0   -0.396
    816.15    31.8449   5.32  -160.4  -180.0   -0.393
    817.16    31.7171   5.26  -160.6  -180.0   -0.388
    818.16    31.5890   5.20  -160.7  -180.0   -0.387
    819.16    31.4604   5.15  -159.7  -180.0   -0.395
    820.16    31.3323   5.09  -159.9  -180.0   -0.399
    821.17    31.2036   5.03  -160.1  -180.0   -0.398
    822.17    31.0743   4.98  -160.2  -180.0   -0.396
    823.18    30.9442   4.92  -160.1  -180.0   -0.399
    824.18    30.8153   4.86  -159.9  -180.0   -0.399
    825.18    30.6845   4.81  -160.0  -180.0   -0.400
    826.18    30.5536   4.75  -160.1  -180.0   -0.398
    827.18    30.4228   4.70  -160.2  -180.0   -0.396
    828.19    30.2912   4.64  -160.1  -180.0   -0.398
    829.19    30.1592   4.59  -160.0  -180.0   -0.400
    830.19    30.0264   4.53  -160.0  -180.0   -0.400
    831.20    29.8935   4.48  -160.1  -180.0   -0.399
    832.20    29.7587   4.42  -160.2  -180.0   -0.397
    833.21    29.6244   4.37  -160.0   180.0   -0.400
    834.21    29.4898   4.31  -159.8   180.0   -0.397
    835.21    29.3545   4.26  -159.8   180.0   -0.397
    836.21    29.2182   4.21  -160.0   180.0   -0.400
    837.21    29.0811   4.16  -160.1   180.0   -0.399
    838.21    28.9439   4.10  -160.1   180.0   -0.398
    839.22    28.8060   4.05  -160.2   180.0   -0.396
    840.22    28.6670   4.00  -160.1   180.0   -0.398
    841.22    28.5276   3.95  -160.2   180.0   -0.397
    842.22    28.3873   3.90  -160.3  -180.0   -0.394
    843.23    28.2469   3.85  -160.3  -180.0   -0.394
    844.23    28.1036   3.80  -160.2  -180.0   -0.396
    845.23    27.9610   3.75  -160.2  -180.0   -0.397
    846.23    27.8185   3.70  -160.2  -180.0   -0.397
    847.23    27.6732   3.65  -159.9  -180.0   -0.399
    848.24    27.5282   3.60  -159.7  -180.0   -0.395
    849.24    27.3826   3.55  -159.8  -180.0   -0.396
    850.24    27.2345   3.50  -160.0  -180.0   -0.400
    851.25    27.0869   3.45  -160.0  -180.0   -0.400
    852.25    26.9383   3.41  -159.7  -180.0   -0.395
    853.25    26.7892   3.36  -159.6  -180.0   -0.392
    854.25    26.6385   3.31  -159.8  -180.0   -0.396
    855.25    26.4871   3.26  -160.0  -180.0   -0.400
    856.26    26.3350   3.22  -160.1  -180.0   -0.399
    857.26    26.1823   3.17  -159.9  -180.0   -0.399
    858.26    26.0284   3.13  -159.9  -180.0   -0.398
    859.26    25.8732   3.08  -160.1  -180.0   -0.399
    860.26    25.7175   3.04  -160.3  -180.0   -0.394
    861.27    25.5608   2.99  -160.4  -180.0   -0.393
    862.27    25.4030   2.95  -159.8  -180.0   -0.397
    863.27    25.2443   2.90  -160.1  -180.0   -0.399
    864.28    25.0844   2.86  -160.3  -180.0   -0.395
    865.28    24.9243   2.82  -160.3  -180.0   -0.395
    866.28    24.7627   2.78  -160.0  -180.0   -0.400
    867.28    24.6006   2.73  -159.8  -180.0   -0.397
    868.28    24.4377   2.69  -159.8  -180.0   -0.396
    869.29    24.2734   2.65  -159.9  -180.0   -0.399
    870.29    24.1084   2.61  -159.8   180.0   -0.397
    871.29    23.9423   2.57  -159.9   180.0   -0.399
    872.30    23.7754   2.53  -160.1   180.0   -0.399
    873.30    23.6079   2.49  -160.0   180.0   -0.400
    874.30    23.4397   2.45  -159.9   180.0   -0.398
    875.30    23.2706   2.41  -159.9   180.0   -0.398
    876.30    23.1007   2.37  -160.0   180.0   -0.400
    877.30    22.9300   2.34  -160.1   180.0   -0.399
    878.30    22.7597   2.30  -160.0   180.0   -0.400
    879.31    22.5860   2.26  -159.9   180.0   -0.399
    880.31    22.4126   2.22  -160.0  -180.0   -0.400
    881.31    22.2386   2.19  -160.1  -180.0   -0.399
    882.31    22.0637   2.15  -160.2  -180.0   -0.396
    883.31    21.8894   2.12  -160.2  -179.9   -0.397
    884.31    21.7120   2.08  -159.8  -179.9   -0.396
    885.32    21.5349   2.05  -159.6  -179.9   -0.393
    886.32    21.3569   2.01  -159.7  -179.9   -0.394
    887.32    21.1784   1.98  -160.0  -180.0   -0.400
    888.32    20.9985   1.95  -160.3  -180.0   -0.394
    889.33    20.8182   1.92  -160.4  -180.0   -0.393
    890.33    20.6362   1.88  -159.9   180.0   -0.398
    891.33    20.4550   1.85  -160.2   180.0   -0.397
    892.34    20.2727   1.82  -160.4  -180.0   -0.393
    893.34    20.0899   1.79  -160.2  -180.0   -0.397
    894.34    19.9061   1.76  -159.5  -180.0   -0.391
    895.34    19.7222   1.73  -159.1  -180.0   -0.384
    896.35    19.5377   1.70  -159.2  -180.0   -0.386
    897.35    19.3522   1.67  -159.7  -180.0   -0.395
    898.35    19.1660   1.64  -159.8  -180.0   -0.397
    899.35    18.9799   1.61  -159.5  -180.0   -0.391
    900.36    18.7925   1.58  -160.0  -180.0   -0.400
    901.36    18.6051   1.55  -160.4  -179.9   -0.393
    902.36    18.4177   1.53  -160.1  -179.9   -0.398
    903.37    18.2292   1.50  -160.1  -179.9   -0.398
    904.37    18.0410   1.47  -160.5  -179.9   -0.391
    905.37    17.8525   1.45  -160.2  -179.9   -0.396
    906.37    17.6631   1.42  -160.1  -179.9   -0.399
    907.37    17.4735   1.40  -159.9  -179.9   -0.399
    908.38    17.2836   1.37  -160.2  -179.9   -0.397
    909.39    17.0924   1.35  -160.3  -179.9   -0.394
    910.39    16.9024   1.33  -159.7  -179.9   -0.395
    911.39    16.7117   1.30  -159.3  -179.9   -0.387
    912.39    16.5211   1.28  -159.3  -179.9   -0.387
    913.40    16.3305   1.26  -159.6  -180.0   -0.394
    914.40    16.1396   1.24  -159.9  -180.0   -0.398
    915.41    15.9492   1.22  -160.0  -180.0   -0.400
    916.41    15.7571   1.20  -159.5   180.0   -0.391
    917.41    15.5659   1.18  -159.1   180.0   -0.384
    918.42    15.3753   1.16  -159.0   179.9   -0.382
    919.42    15.1845   1.14  -159.4   179.9   -0.389
    920.42    14.9937   1.12  -160.1   179.9   -0.399
    921.42    14.8029   1.10  -160.7   179.9   -0.387
    922.43    14.6128   1.08  -161.1   179.9   -0.378
    923.43    14.4222   1.07  -160.7   180.0   -0.386
    924.43    14.2323   1.05  -160.1   180.0   -0.397
    925.44    14.0426   1.03  -159.6  -180.0   -0.393
    926.44    13.8539   1.02  -159.3  -180.0   -0.387
    927.44    13.6648   1.00  -159.0  -179.9   -0.381
    928.44    13.4761   0.99  -159.5  -179.9   -0.390
    929.44    13.2886   0.97  -160.1  -179.9   -0.399
    930.44    13.1017   0.96  -160.7  -179.9   -0.387
    931.44    12.9152   0.94  -161.4  -179.9   -0.374
    932.45    12.7291   0.93  -162.0  -179.9   -0.361
    933.45    12.5443   0.91  -162.5  -179.9   -0.351
    934.45    12.3573   0.90  -162.5  -179.9   -0.351
    935.45    12.1724   0.89  -161.6  -179.9   -0.368
    936.46    11.9880   0.89  -160.2  -179.9   -0.397
    937.46    11.8047   0.87  -159.8  -179.9   -0.397
    938.46    11.6224   0.86  -159.9  -179.9   -0.399
    939.46    11.4405   0.84  -160.0  -179.9   -0.400
    940.47    11.2605   0.83  -160.0  -179.9   -0.400
    941.47    11.0794   0.81  -160.0  -179.9   -0.400
    942.47    10.9029   0.78  -178.4  -177.3   -0.033
    943.48    10.7319   0.73   153.9  -173.3    0.272
    944.48    10.5637   0.69   147.0  -171.8    0.148
    945.48    10.3989   0.66   145.8  -171.5    0.128
    946.48    10.2374   0.63   145.7  -171.4    0.125
    947.48    10.0780   0.60   145.7  -171.5    0.125
    948.49     9.9223   0.57   145.5  -171.9    0.099
    949.49     9.7773   0.51   147.9  -175.2    0.093
    950.49     9.6476   0.44   148.9  -176.1    0.089
    951.49     9.5303   0.39   148.9  -176.2    0.090
    952.49     9.4231   0.36   148.9  -176.2    0.090
    953.50     9.3227   0.33   149.0  -176.2    0.090
    954.50     9.2273   0.32   149.0  -176.2    0.090
    955.50     9.1359   0.30   149.1  -176.3    0.091
    956.95     9.0481   0.29   149.1  -176.3    0.091
    957.95     8.9229   0.28   149.5  -176.2    0.095
    958.95     8.8396   0.27   149.3  -176.3    0.093
    959.96     8.7567   0.27   149.3  -176.3    0.093
    960.97     8.6750   0.26   149.3  -176.3    0.093
    961.98     8.5945   0.26   149.4  -176.2    0.094
    962.98     8.5152   0.26   149.4  -176.2    0.094
    963.98     8.4361   0.26   149.5  -176.2    0.094
# Log stopped for Soyuz-12

Urwumpe · Dec 1, 2011

What is your drag coefficient and area now?

N_Molson · Dec 1, 2011

Here is the aerodynamic function in the current state :

Code:

void VLiftCoeff (double aoa, double M, double Re, double *cl, double *cm, double *cd)
{
	int i;
	const int nabsc = 19;
	// Angle of attack                   -180,     -160,     -140,     -120,     -100,     -80,     -60,     -40,      -20,     0,      20,      40,      60,      80,     100,     120,     140,     160,     180,
	static const double AOA[nabsc]= {-180*RAD, -160*RAD, -140*RAD, -120*RAD, -100*RAD, -80*RAD, -60*RAD, -40*RAD,  -20*RAD, 0*RAD,  20*RAD,  40*RAD,  60*RAD,  80*RAD, 100*RAD, 120*RAD, 140*RAD, 160*RAD, 180*RAD};
	static const double CL[nabsc] = {       0,    -0.172,    -0.011,        0,        0,       0,       0,       0,        0,     0,       0,       0,       0,       0,       0,       0,   +0.011,  +0.172,       0};
	static const double CM[nabsc] = {-0.00014,  -0.00037,   -0.001,   -0.005,    -0.006,   -0.006,  -0.005, -0.003,  -0.002,     0, +0.002, +0.003, +0.005, +0.006, +0.006, +0.005, +0.001, +0.00037, +0.00014};

	for (i = 0; i < nabsc-1 && AOA[i+1] < aoa; i++);
	double f = (aoa-AOA[i]) / (AOA[i+1]-AOA[i]);
	*cl = CL[i] + (CL[i+1]-CL[i]) * f;  // aoa-dependent lift coefficient
	*cm = CM[i] + (CM[i+1]-CM[i]) * f;  // aoa-dependent moment coefficient
	double saoa = sin(aoa);
	double pd = 0.21 + 0.01*saoa*saoa;  // profile drag
	*cd = pd + oapiGetInducedDrag (*cl, 6.82, 0.4);
	// profile drag + (lift-)induced drag
};
// 2. horizontal lift component (vertical stabiliser and body)
void HLiftCoeff (double beta, double M, double Re, double *cl, double *cm, double *cd)
{
	int i;
	const int nabsc = 19;
	static const double BETA[nabsc] = {-180*RAD, -160*RAD, -140*RAD, -120*RAD, -100*RAD, -80*RAD, -60*RAD, -40*RAD,  -20*RAD, 0*RAD,  20*RAD,  40*RAD,  60*RAD,  80*RAD, 100*RAD, 120*RAD, 140*RAD, 160*RAD, 180*RAD};
	static const double CL[nabsc]   = {       0,    -0.15,    -0.05,        0,        0,       0,       0,       0,        0,     0,       0,       0,       0,       0,       0,       0,    0.05,    0.15,       0};
	for (i = 0; i < nabsc-1 && BETA[i+1] < beta; i++);
	*cl = CL[i] + (CL[i+1]-CL[i]) * (beta-BETA[i]) / (BETA[i+1]-BETA[i]);
	*cm = 0;
	*cd = 0.21 + oapiGetInducedDrag (*cl, 6.82, 0.04);
};

The capsule is defined as a sort of "+ wing" :

CreateAirfoil (LIFT_VERTICAL, _V(0, 0,0.01), VLiftCoeff, 2.17, 6.82, 0.1);
CreateAirfoil (LIFT_HORIZONTAL, _V(0, 0,0.001), HLiftCoeff, 2.17, 6.82, 0.1);

N_Molson · Dec 3, 2011

The aft engines also seem to be angled inward a lot:

Issue #026

Fixed, I assumed a 45° inward angle (correct me if you have the precise value), and the RCS handles MUCH better in DPO mode.

Urwumpe · Dec 3, 2011

N_Molson said:
Issue #026

Fixed, I assumed a 45° inward angle (correct me if you have the precise value), and the RCS handles MUCH better in DPO mode.

I had either 45° or 30° depending on how I try to reconstruct the nozzles, but 45° really has the better probability. Can't wait to test it.

N_Molson · Dec 3, 2011

EDIT: I notice that the DPO is firing effectively pro and retrograde at the same time without me commanding it... did you implement some docking guidance without IGLA, with too tight deadbands?

Issue #027

Fixed, the CG was moved back so that most unwanted torque in translation mode got eliminated. Also, the deadband was slightly enlarged, avoiding the system to "lock" and spill H2O2 in all directions.

Urwumpe · Dec 3, 2011

N_Molson said:
Issue #027

Fixed, the CG was moved back so that most unwanted torque in translation mode got eliminated. Also, the deadband was slightly enlarged, avoiding the system to "lock" and spill H2O2 in all directions.

couldn't this be perfectly handled by having both gyroscopes active and controlling the attitude?

N_Molson · Dec 3, 2011

couldn't this be perfectly handled by having both gyroscopes active and controlling the attitude?

Ah, you mean using an absolute reference point in space at which the nose is pointing as an instant t instead of relying on angular velocity ? I still have trouble with this ; as you may have noticed, the "uncage gyros" thing doesn't work very well in its current state (the Global2Local & co functions are driving me crazy, and I know nothing at vectors, so I'm completely lost with trigonometric calculations, dot products, rotation matrixes, mul and tmul operators). But I'll search further in that way.

Urwumpe · Dec 3, 2011

N_Molson said:
Ah, you mean using an absolute reference point in space at which the nose is pointing as an instant t instead of relying on angular velocity ? I still have trouble with this ; as you may have noticed, the "uncage gyros" thing doesn't work very well in its current state (the Global2Local & co functions are driving me crazy, and I know nothing at vectors, so I'm completely lost with trigonometric calculations, dot products, rotation matrixes, mul and tmul operators). But I'll search further in that way.

Well, global2Local is the wrong function there, you should try GlobalRot or use the transformation matrix directly.

You can for example use globalrot for transforming unit vectors from local to global and use these vectors then for calculating the angular errors between your current attitude and the planned attitude.

N_Molson · Dec 3, 2011

Well, global2Local is the wrong function there, you should try GlobalRot or use the transformation matrix directly.

Well, in fact it's what I tried. Any suggestions on what is going wrong here ?

Code:

	if (gyro_uncage == 1)
	{
		VECTOR3 lvpos = {0,0,1};
		GetGlobalOrientation(lvpos);

		MATRIX3 R3;
		vs->GetRotationMatrix(R3);						//get rotation matrix
		lvpos = tmul(R3,lvpos);

		double abs_Pitch = lvpos.x*DEG;
		double abs_Yaw = lvpos.y*DEG;

		if (done08 == 0)
		{
			abs_Pitch_m = lvpos.x*DEG;
			abs_Yaw_m = lvpos.y*DEG;
			done08 = 1;
		}

		double X_diff = abs_Pitch_m - abs_Pitch;
		double Y_diff = abs_Yaw_m - abs_Yaw;

                ...
         }

abs_pitch = "absolute", or "reference" pitch (the point in space at which the nose is pointing at an instant t we want to keep as a reference)
abs_yaw = ... yaw

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