EXTRACTION PLANES 
(approximated in some cases*)

IN DEPLOYED COORDINATES (CONFIG 1 - slat 30, flap 25) (all units are inches):

Plane 1: slat50
  equation:  0.01073381x +    -0.01596215y +     0.00015326z =     1.00000000
  3 points that define the plane:
           Point 1    Point 2    Point 3
  x-coord  29.5605    26.7109    28.6416
  y-coord  -42.7717   -44.7247   -43.4006
  z-coord  -0.1622    -3.9924    -1.3060

Plane 2: main50
  equation:  y = -43.5240
  3 points that define the plane:
           Point 1    Point 2    Point 3
  x-coord  0          1          2
  y-coord  -43.5240   -43.5240   -43.5240
  z-coord  0          1          0

Plane 3: flap50
  equation:  0.00007925x +    -0.02287434y +     0.00375567z =     1.00000000
  3 points that define the plane:
           Point 1    Point 2    Point 3
  x-coord  68.3508    59.8005    68.1043
  y-coord  -44.2279   -43.4690   -44.2224
  z-coord  -4.5534    0.2492     -4.5147

Plane 4: slat85
  equation:  0.00083735x +    -0.01271173y +    -0.00359646z =     1.00000000
  3 points that define the plane:
           Point 1    Point 2    Point 3
  x-coord  51.6053    46.7294    50.0510
  y-coord  -75.2133   -74.5509   -75.0230
  z-coord  -0.1939    -3.6704    -1.2284

Plane 5: main85
  equation:  y = -73.2460
  3 points that define the plane:
           Point 1    Point 2    Point 3
  x-coord  0          1          2
  y-coord  -73.2460   -73.2460   -73.2460
  z-coord  0          1          0

Plane 6: flap85
  equation:  0.00004941x +    -0.01354094y +     0.00222826z =     1.00000000
  3 points that define the plane:
           Point 1    Point 2    Point 3
  x-coord  76.4622    70.0358    76.2905
  y-coord  -74.0889   -73.5626   -74.0851
  z-coord  -3.1467    0.1941     -3.1198

Plane 7: flapfwdspan (points are on upper flap surface)
  equation:  0.02202358x +     0.00767785y +     0.01151702z =     1.00000000
  3 points that define the plane:
           Point 1    Point 2    Point 3
  x-coord  49.3460    63.1699    75.1906
  y-coord  -11.5770   -51.1830   -85.6229
  z-coord  0.1833     0.1518     0.1245

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* These equations were generated by using the 3 points listed, and plugging into
a formula from "CRC Standard Mathematical Tables", 26th ed, W. H. Beyer, CRC Press,
Boca Raton, FL, 1981, p. 259.  The 3 points were taken directly from the experimental
orifice locations (except in simple cases such as y=const).  Note that when
the experimental orifice locations along a row do not all exactly lie in a plane,
then the plane generated from the selected 3 points will not necessarily intersect
all other orifice points, but it should be close.