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EPPLER STF 863-615

Cambered · 15% thick · low-to-mid Re
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PROFILEEPPLER STF 863-615
surfacecamber line
GEOMETRY · AREA METRICS
max thickness14.7% @ 47%c
max camber4.6% @ 72%c
LE radius2.37%c
area upper / chord0.0817
area lower / chord-0.0153
area camber / chord0.0332
TE thickness-0.08%c
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Polars

Preliminary
NeuralFoil
0.03635-50.56863.3331.10111.671.63320ClAngle of attack (°)
Why this curve

This is a NeuralFoil prediction from the stored profile coordinates and the selected flow condition, with AeroSandbox compressibility corrections. It is not a completed OpenFOAM calculation.

Prediction error has not been calibrated for this condition. No accuracy interval is claimed.

The compressibility correction is a low-fidelity estimate, not a resolved shock or compressible CFD solution.

Geometry fit: RMS error 0.03059% of chord; maximum error 0.1919%.

NeuralFoil 0.3.3 · AeroSandbox 4.2.10

Curve summary

NeuralFoil · Within -5° to 20°

Maximum lift / drag
137.5
Angle at maximum lift / drag (°)
5
Minimum Cd
0.006965
Maximum Cl
1.5
Angle at maximum Cl (°)
7
Cd at zero lift
—
Cm at zero angle
-0.1893
CFD points
SOLVER WORK0 conditions · 0 engine jobs
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