Wingdesigner v0.3.0

Changed

• Wizard: Dihedral per half accepts −60 to 60° (−15 to 30° in 0.2.0), for V-tails and inverted
  V-tails. 60° is the steepest first panel that Mitred section planes build (stretch 2 at the
  vertical root). Every preset with both planforms, both tips and 2, 3, 5 or 8 sections builds at
  −60, −55, −45, −30, 30, 35, 45, 50, 55, 59.5 and 60°. A short, steep V-tail
  with many sections folds at its root and keeps Create design disabled with the build error:
  Tail surface at 100 mm span with 8 sections and 55°; from 200 mm span, 2 to 8 sections build up
  to 60°.
• File Formats, section Differences from XFLR5: the distances to XFLR5's STL split into airfoil
  interpolation (largest part on 58 of 93 surfaces), construction (23: twist shear, vertical planes
  of tilted parts, chordwise stations) and flaps (12), each with its mechanism and size. The flap
  row names XFLR5's hinge-split chordwise points (2.41 and 2.62 mm) besides the deflection (1.61 and
  1.76 mm).

Fixed

• XFLR5 import: every airfoil frame applies exactly. The leading edge of the fitted curve lies up
  to 1e-3 of the chord off the nose point of real files (32 of 64 airfoil entries); 0.2.0 dropped
  such offsets and put sections up to 0.30 mm off XFLR5's placement (NACA 4415, 391 mm chord).
  Offsets up to 1e-9 of the chord count as round-off. The import report names a move only above
  0.1 % of the chord. The report line says "scaled" only when its figures show a chord other than
  100 %. Against XFLR5's STL of 93 real surfaces, 19 lie closer (NACA 4415 0.094 mm
  instead of 0.325 mm, Clark YS 0.883 mm instead of 1.008 mm) and 32 lie 0.012 to 0.078 mm farther:
  the dropped offset had pointed against XFLR5's straight-segment sag or a construction difference
  (flat wings of Wing Design and Analysis.xfl 0.277 mm instead of 0.229 mm). On 284 generated
  untilted parts with cambered NACA sections, a built section lies at most 0.033 mm from XFLR5's
  placement instead of 0.151 mm.

Use: unzip wingdesigner-v0.3.0-site.zip and open index.html in the browser; it runs from the file without a web server (tested in Chromium). A static web server on the folder works as well, e.g. python3 -m http.server. LICENSES.txt holds the licenses of the app and of its bundled libraries.