Free-Form Wing Spline Designer

1. Planform Aerodynamics

Full Span (b)

2.000 m

Total Area (S)

0.450 m²

Aspect Ratio (AR)

8.89

Taper Ratio (λ)

0.34

Root Chord

0.350 m

Tip Chord

0.120 m

Mean Aero Chord (MAC)

0.265 m

MAC Station (Y_mac)

0.420 m

Neutral Point / AC

Y = -0.154 m

Target CoG (SM: 10%)

Y = -0.127 m

2. Snapping & Balance CoG

Snap Points to Grid:

Snap Tangents to Grid:

Grid Snap Step: 0.050 m

Show Centerline MAC & CoG:

Show Point Labels (Coordinates):

Static Margin (SM): 10.0%

3. Parametric Planform 4 Corners Only

Semi-Span (b/2): 1.000 m

Root Chord (c_r): 0.350 m

Tip Chord (c_t): 0.120 m

Sweep Input Mode:

LE Sweep (Λ): 8.5°

LE Sweep Offset: -0.150 m

3. Primary Anchors Root X=0 Locked

Root LE (Y):

Root TE (Y):

Tip LE (X, Y):

Tip TE (X, Y):

4. Tangent Slopes & Curvature

Enable Custom Tangents:

5. Control Surfaces 0 Active

Click and drag a box across the trailing edge. Overlaps with existing control surfaces will turn red and be rejected.

6. Rib Alignment & Spacing

Show Ribs (2D Dotted):

Show Rib Labels (# / Chord):

Rib Count: 12

Distribution Mode:

Curvature Sensitivity: 2.5

Span Distribution Curve (0=Root, 1=Tip): Click to add key

7. Planform Presets

8. Spline Knots

Leading Edge Knots:

Trailing Edge Knots:

9. Export & Import

Free-form Wing Designer