# Unswept Wings: coefficients and forces (calculation)

## How does it work?

This calculation template uses Prandtl’s classical Lifting-line Theory.

All the results are available for angles of attack from 0 to 15 degrees and are presented in chart and table formats:

• Wing / Appendage coefficients: CL, CDi, e (Oswald’s efficiency factor);
• Wing / Appendage forcers: lift, lift-induced drag;

### Wing attached to a solid surface (Gap = No)

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