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CAMBEREDNACA OTHERSELIG-DATABASE

NACA 9

Cambered · 8% thick · low-to-mid Re
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PROFILENACA 9
surfacecamber line
GEOMETRY · AREA METRICS
max thickness8.5% @ 30%c
max camber4.2% @ 30%c
LE radius0.79%c
area upper / chord0.0595
area lower / chord0.0012
area camber / chord0.0303
TE thickness0.28%c
DOWNLOAD COORDINATES

Polars

Preliminary
Combined estimate
-0.3822-50.13513.3330.652411.671.1720ClAngle of attack (°)
Why this curve

This curve combines the stored NeuralFoil prediction with 1 contributing CFD observations. History windows remain observations, not separate solver runs or automatically converged points.

Model uncertainty is conditional on the stated assumptions and has not been calibrated for this condition. It is not a validated accuracy guarantee.

Geometry fit: RMS error 0.05466% of chord; maximum error 0.255%.

NeuralFoil 0.3.3 · AeroSandbox 4.2.10 · Polar model progressive-polar-gp-v2

  • · Converged

Curve summary

Combined estimate · Within -5° to 20°

Maximum lift / drag
50.3
Angle at maximum lift / drag (°)
4
Minimum Cd
0.01506
Maximum Cl
1.04
Angle at maximum Cl (°)
6
Cd at zero lift
0.01506
Cm at zero angle
-0.08112
CFD points
SOLVER WORK0 conditions · 0 engine jobs
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