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Lift & Drag

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Flight conditions

deg

Wing geometry

Airfoil

Aerodynamic forces and coefficients

5.0 deg AOA

The existing force balance and coefficient curve show the selected operating point and stall boundary.

Force balance

Freestreamα

Lift vector

17,139 N

Drag vector

1,370 N

Angle (α)

5.0°

Free-stream

reference line

Coefficient curve

Lift coefficient (CL)
Drag coefficient (CD)

Lift force

17,139.33 N

CL 0.771

Drag force

1,370.37 N

CD 0.0616

Lift/drag ratio

12.5

Maximum 21.1

Stall speed

8.96 m/s

32.26 km/h

Optimal angle of attack

0.3 deg

For maximum lift/drag ratio

Aspect ratio

4.0

Span squared divided by area

Velocity

50.00 m/s

180.00 km/h, 97.19 knots

Altitude

1,000.00 m

3,280.84 ft

Air density

1.1117 kg/m3

Dynamic pressure 1,389.56 Pa

Airfoil

NACA 2412

CL max 1.40, CD0 0.0060

Open Source and Easy to Use Elsewhere

This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.

Open source: review the implementation and see how the results are produced.

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