Airfoils.Pro
database / Eppler / E668
CAMBEREDEPPLERSELIG-DATABASE

E668

Cambered · 14% thick · low-to-mid Re
Compare↓ Download
PROFILEE668
surfacecamber line
GEOMETRY · AREA METRICS
max thickness13.9% @ 37%c
max camber4.0% @ 51%c
LE radius2.13%c
area upper / chord0.0757
area lower / chord-0.0191
area camber / chord0.0283
TE thickness0.00%c
DOWNLOAD COORDINATES

Polars

Preliminary
NeuralFoil
-0.154-50.45723.3331.06811.671.6820ClAngle 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 0.02033% of chord; maximum error 0.05749%.

NeuralFoil 0.3.3 · AeroSandbox 4.2.10

Curve summary

NeuralFoil · Within -5° to 20°

Maximum lift / drag
150.5
Angle at maximum lift / drag (°)
6
Minimum Cd
0.006783
Maximum Cl
1.527
Angle at maximum Cl (°)
8
Cd at zero lift
0.006785
Cm at zero angle
-0.1443
CFD points
SOLVER WORK0 conditions · 0 engine jobs
Loading solver work…