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CAMBEREDSELIG-DATABASETHICKWORTMANN FX

FX 69-PR-281

Cambered · 28% thick · low-to-mid Re
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PROFILEFX 69-PR-281
surfacecamber line
GEOMETRY · AREA METRICS
max thickness28.1% @ 22%c
max camber5.6% @ 50%c
LE radius8.72%c
area upper / chord0.1256
area lower / chord-0.0458
area camber / chord0.0399
TE thickness0.00%c
DOWNLOAD COORDINATES

Polars

Preliminary
Combined estimate
0.1148-50.60833.3331.10211.671.59520ClAngle of attack (°)
Why this curve

This curve combines the stored NeuralFoil prediction with 0 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 0.03322% of chord; maximum error 0.09797%.

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

Curve summary

Combined estimate · Within -5° to 20°

Maximum lift / drag
101.8
Angle at maximum lift / drag (°)
3
Minimum Cd
0.009759
Maximum Cl
1.472
Angle at maximum Cl (°)
6
Cd at zero lift
—
Cm at zero angle
-0.1912
CFD points
SOLVER WORK0 conditions · 0 engine jobs
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