Selecting Airfoil for Miniature Aircraft at 20m/s

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SUMMARY

The discussion centers on selecting an appropriate airfoil for a miniature aircraft designed to fly at 20 m/s (72 km/h) with a wingspan of 2 meters and a maximum weight of 25 kg. The user has considered the S1223 and NACA8212 airfoils, both of which provide over 200 N of lift. Additionally, the Eppler airfoil is mentioned as a viable option due to its performance under span restrictions. The user seeks recommendations for the most advantageous airfoil for their specific requirements.

PREREQUISITES
  • Understanding of aerodynamic principles related to airfoil selection
  • Familiarity with airfoil characteristics such as lift and drag coefficients
  • Knowledge of miniature aircraft design regulations and constraints
  • Experience with computational tools for airfoil analysis, such as XFOIL or JavaFoil
NEXT STEPS
  • Research the performance characteristics of the Eppler airfoil for miniature aircraft
  • Learn about the lift-to-drag ratio of S1223 and NACA8212 airfoils
  • Explore computational fluid dynamics (CFD) simulations for airfoil optimization
  • Investigate the impact of wing aspect ratio on flight performance
USEFUL FOR

Aerospace engineers, hobbyists designing miniature aircraft, and anyone involved in competitive model aviation will benefit from this discussion.

ank_gl
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hi i m making a miniature aircraft...:frown: :frown: :frown:
but i m struck with the problem of many...
i have to fly my aircraft at about 20m/s(72km/hr=45 miles/hr) at about an altitude of 15-20m...
wing span is 2m(it cannot be more than this acc to the rule of competition(fuselage also not to exceed 2m)), chord is 0.3-0.5m...
total weight is not to exceed 25kgs...
i have chosen S1223 & NACA8212, both give me over 200 N lift...

please suggest me which airfoil should i choose or any other airfoil which can be more advantageous...:confused: :confused: :confused: :confused: :confused:
 
Engineering news on Phys.org
Eppler is not bad when there is a span restriction
 

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