Airfoils / NACA 4412
NACA 4-digit airfoil

NACA 4412 Airfoil

The NACA 4412 is a high-lift member of the NACA 4-digit family: 12% thick, with a generous 4% camber at 40% of the chord. That extra camber makes it produce more lift than the 0012 or 2412 at the same angle of attack, which is why it is a classic choice where lift matters more than outright low drag.

Cross-section (chord line dashed) · computed from the NACA 4-digit equations
Max thickness
12% c
Max camber
4% c
Camber position
40% c
Trailing edge
sharp

What the numbers mean

In the code 4412, the first digit 4 is the maximum camber as 4% of the chord, the second digit 4 is the position of that maximum camber at 40% of the chord, and the last two digits 12 are the maximum thickness as 12% of the chord. It shares the 2412's thickness and camber position but has twice the camber.

Aerodynamic characteristics

Doubling the camber (from the 2412's 2% to 4%) lifts the whole curve further: the 4412 makes noticeably more lift at any given angle and reaches a higher maximum lift, at the cost of a stronger nose-down pitching moment and a little more drag. It is the textbook example of ‘more camber, more lift.’

PropertyTypical value
Zero-lift angle α₀≈ −4°
Lift coefficient at 0°≈ 0.45
Lift-curve slope≈ 0.10 /deg
Max lift coefficient Cl,max≈ 1.6–1.7
Stall angle≈ 14–15°
Pitching moment Cm,c/4≈ −0.10

Conditions: Reynolds number Re = 1×10⁶, low speed (Mach ≤ 0.15), smooth surface. Values are representative figures from thin-airfoil theory and published XFoil / wind-tunnel data, rounded for reference.

Want exact numbers for your conditions? These are typical reference values. Open NACA 4412 in the interactive explorer to compute its lift, drag, moment and polar curves live at any Reynolds number and angle of attack.

Where it's used

Coordinates

Surface coordinates as fractions of the chord (x/c, y/c), generated from the standard NACA 4-digit equations with a closed trailing edge. For the full high-resolution coordinate file, use the DAT export inside the explorer.

x/c (upper)y/c (upper)x/c (lower)y/c (lower)
0.000+0.00000.000+0.0000
0.020+0.03020.029-0.0207
0.089+0.06230.102-0.0287
0.201+0.08800.212-0.0268
0.344+0.09880.347-0.0203
0.501+0.09170.499-0.0140
0.657+0.07340.652-0.0078
0.796+0.04910.792-0.0035
0.906+0.02470.903-0.0013
0.976+0.00670.975-0.0003
1.000-0.00001.000+0.0000

Explore NACA 4412 in the interactive tool →

See the 3D wing, live Cl / Cd / L-D polar charts, and change the airfoil, angle of attack and Reynolds number in real time.

Open the explorer →

Frequently asked questions

What is the NACA 4412 airfoil?

NACA 4412 is a cambered airfoil from the NACA 4-digit family with 4% camber at 40% chord and 12% maximum thickness. Its high camber makes it a classic high-lift general-aviation and model-aircraft section.

What do the digits in NACA 4412 mean?

The first 4 is 4% maximum camber, the second 4 is the camber position at 40% of the chord, and the 12 is 12% maximum thickness, all relative to the chord length.

Is the NACA 4412 a high-lift airfoil?

Relatively, yes. With 4% camber it produces more lift at a given angle of attack and a higher maximum lift coefficient than lower-camber sections like the 2412 or the symmetric 0012, though it pays for it with more drag and a stronger nose-down moment.

NACA 4412 vs 2412 - what is the difference?

Both are 12% thick with camber at 40% chord, but the 4412 has 4% camber versus the 2412's 2%. The 4412 makes more lift and has a more negative zero-lift angle (about -4 degrees vs -2), at the cost of more drag and a stronger pitching moment.

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