Göttingen 765: attempt 1 with Späte drawing

In Wolfgang Späte's book 'Der streng geheime Vogel', a small drawing (shown below) is shown. It suggest it represents the wing sections at several spanwise locations. But it should be remarked that the drawing has no caption, and it is too small to read the data block or the writing on it. Therefore it is not 100% confirmed that this is the elusive Göttingen 765 profile.

Bob Adams digitally measured the drawing, and kindly contributed the contour data listed below. Shown for reference are plots of the coordinates, made in Excel.

Contour data

(note: the coordinates are not smoothed to achieve mathematically smooth contours, without discontinuous curvatures)

Normalised
x-coordinate

Normalised
y-coordinate

1.00000 0.00000
0.99375 0.00038
0.98750 0.00065
0.98125 0.00091
0.97500 0.00117
0.96875 0.00147
0.96250 0.00170
0.95625 0.00195
0.95000 0.00223
0.94375 0.00261
0.93750 0.00301
0.93125 0.00342
0.92500 0.00391
0.91875 0.00442
0.91250 0.00493
0.90625 0.00551
0.90000 0.00611
0.89375 0.00672
0.88750 0.00728
0.88125 0.00785
0.87500 0.00846
0.86875 0.00912
0.86250 0.00985
0.85625 0.01056
0.85000 0.01126
0.84375 0.01197
0.83750 0.01272
0.83125 0.01356
0.82500 0.01441
0.81875 0.01529
0.81250 0.01615
0.80625 0.01703
0.80000 0.01788
0.79375 0.01877
0.78750 0.01964
0.78125 0.02057
0.77500 0.02148
0.76875 0.02241
0.76250 0.02334
0.75625 0.02429
0.75000 0.02525
0.74375 0.02622
0.73750 0.02718
0.73125 0.02820
0.72500 0.02921
0.71875 0.03024
0.71250 0.03125
0.70625 0.03228
0.70000 0.03330
0.69375 0.03433
0.68750 0.03538
0.68125 0.03643
0.67500 0.03747
0.66875 0.03853
0.66250 0.03957
0.65625 0.04055
0.65000 0.04151
0.64375 0.04248
0.63750 0.04341
0.63125 0.04436
0.62500 0.04528
0.61875 0.04624
0.61250 0.04718
0.60625 0.04813
0.60000 0.04909
0.59375 0.05005
0.58750 0.05103
0.58125 0.05197
0.57500 0.05291
0.56875 0.05385
0.56250 0.05482
0.55625 0.05580
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0.54375 0.05776
0.53750 0.05870
0.53125 0.05963
0.52500 0.06055
0.51875 0.06148
0.51250 0.06238
0.50625 0.06324
0.50000 0.06409
0.49375 0.06496
0.48750 0.06581
0.48125 0.06667
0.47500 0.06752
0.46875 0.06833
0.46250 0.06912
0.45625 0.06992
0.45000 0.07070
0.44375 0.07146
0.43750 0.07221
0.43125 0.07298
0.42500 0.07372
0.41875 0.07446
0.41250 0.07520
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0.40000 0.07650
0.39375 0.07712
0.38750 0.07764
0.38125 0.07816
0.37500 0.07867
0.36875 0.07920
0.36250 0.07974
0.35625 0.08017
0.35000 0.08057
0.34375 0.08096
0.33750 0.08133
0.33125 0.08168
0.32500 0.08201
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0.31250 0.08264
0.30625 0.08290
0.30000 0.08312
0.29375 0.08327
0.28750 0.08342
0.28125 0.08350
0.27500 0.08360
0.26875 0.08360
0.26250 0.08356
0.25625 0.08355
0.25000 0.08348
0.24375 0.08338
0.23750 0.08324
0.23125 0.08303
0.22500 0.08277
0.21875 0.08244
0.21250 0.08210
0.20625 0.08177
0.20000 0.08141
0.19375 0.08095
0.18750 0.08045
0.18125 0.07985
0.17500 0.07917
0.16875 0.07850
0.16250 0.07773
0.15625 0.07700
0.15000 0.07617
0.14375 0.07533
0.13750 0.07438
0.13125 0.07333
0.12500 0.07225
0.11875 0.07096
0.11250 0.06954
0.10625 0.06801
0.10000 0.06639
0.09375 0.06471
0.08750 0.06294
0.08125 0.06104
0.07500 0.05907
0.06875 0.05705
0.06250 0.05496
0.05625 0.05265
0.05000 0.05004
0.04375 0.04727
0.03750 0.04415
0.03125 0.04068
0.02500 0.03670
0.01875 0.03219
0.01250 0.02676
0.00625 0.01922
0.00000 0.00000
0.00000 -0.00077
0.00625 -0.01143
0.01250 -0.01732
0.01875 -0.02142
0.02500 -0.02488
0.03125 -0.02760
0.03750 -0.02968
0.04375 -0.03135
0.05000 -0.03274
0.05625 -0.03397
0.06250 -0.03520
0.06875 -0.03637
0.07500 -0.03749
0.08125 -0.03848
0.08750 -0.03934
0.09375 -0.04020
0.10000 -0.04094
0.10625 -0.04163
0.11250 -0.04233
0.11875 -0.04289
0.12500 -0.04339
0.13125 -0.04389
0.13750 -0.04440
0.14375 -0.04487
0.15000 -0.04536
0.15625 -0.04583
0.16250 -0.04623
0.16875 -0.04658
0.17500 -0.04693
0.18125 -0.04728
0.18750 -0.04756
0.19375 -0.04782
0.20000 -0.04808
0.20625 -0.04832
0.21250 -0.04856
0.21875 -0.04879
0.22500 -0.04906
0.23125 -0.04939
0.23750 -0.04970
0.24375 -0.05002
0.25000 -0.05023
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0.39375 -0.05209
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0.44375 -0.05208
0.45000 -0.05193
0.45625 -0.05178
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0.48125 -0.05133
0.48750 -0.05122
0.49375 -0.05108
0.50000 -0.05093
0.50625 -0.05078
0.51250 -0.05064
0.51875 -0.05045
0.52500 -0.05025
0.53125 -0.05005
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0.54375 -0.04973
0.55000 -0.04958
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0.56875 -0.04903
0.57500 -0.04880
0.58125 -0.04859
0.58750 -0.04835
0.59375 -0.04803
0.60000 -0.04769
0.60625 -0.04737
0.61250 -0.04706
0.61875 -0.04675
0.62500 -0.04650
0.63125 -0.04622
0.63750 -0.04596
0.64375 -0.04564
0.65000 -0.04528
0.65625 -0.04492
0.66250 -0.04454
0.66875 -0.04417
0.67500 -0.04370
0.68125 -0.04323
0.68750 -0.04275
0.69375 -0.04227
0.70000 -0.04183
0.70625 -0.04141
0.71250 -0.04098
0.71875 -0.04056
0.72500 -0.04015
0.73125 -0.03974
0.73750 -0.03932
0.74375 -0.03888
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0.75625 -0.03776
0.76250 -0.03712
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0.78125 -0.03491
0.78750 -0.03406
0.79375 -0.03322
0.80000 -0.03239
0.80625 -0.03156
0.81250 -0.03072
0.81875 -0.02988
0.82500 -0.02897
0.83125 -0.02803
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0.84375 -0.02615
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0.85625 -0.02418
0.86250 -0.02315
0.86875 -0.02214
0.87500 -0.02113
0.88125 -0.02011
0.88750 -0.01914
0.89375 -0.01814
0.90000 -0.01717
0.90625 -0.01620
0.91250 -0.01523
0.91875 -0.01424
0.92500 -0.01328
0.93125 -0.01229
0.93750 -0.01130
0.94375 -0.01032
0.95000 -0.00935
0.95625 -0.00837
0.96250 -0.00732
0.96875 -0.00624
0.97500 -0.00519
0.98125 -0.00412
0.98750 -0.00305
0.99375 -0.00197
1.00000 -0.00091


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