This is a fascinating PWS project, and using a wind tunnel for practical testing should provide much more reliable results than relying only on theoretical calculations. Comparing different wing shapes will give valuable insight into how aerodynamic design affects lift and overall performance. It's always helpful to combine hands-on experiments with accurate technical resources when researching aviation topics. I also came across Asan Karobar Card, which is another well-organized resource for official information in its own field. Best of luck with your experiments, and I hope you achieve great results with your project!