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USA 27 AIRFOIL

Cambered · 11% thick · low-to-mid Re
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PROFILEUSA 27 AIRFOIL
surfacecamber line
GEOMETRY · AREA METRICS
max thickness11.1% @ 30%c
max camber5.1% @ 39%c
LE radius1.35%c
area upper / chord0.0729
area lower / chord-0.0079
area camber / chord0.0325
TE thickness0.02%c
DOWNLOAD COORDINATES

Polars

Preliminary
NeuralFoil
-0.2377-50.44793.3331.13311.671.81920ClAngle 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 0.06302% of chord; maximum error 0.3643%.

NeuralFoil 0.3.3 · AeroSandbox 4.2.10

Curve summary

NeuralFoil · Within -5° to 20°

Maximum lift / drag
151.5
Angle at maximum lift / drag (°)
7
Minimum Cd
0.006684
Maximum Cl
1.648
Angle at maximum Cl (°)
10
Cd at zero lift
0.007401
Cm at zero angle
-0.09844
CFD points
SOLVER WORK0 conditions · 0 engine jobs
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