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FAQfaq

  1. "We are interested in having an airfoil or propeller tested/designed at UIUC. What should be our next step?
    We have tested over 200 airfoils under various conditions at UIUC, many of which are new designs for special applications like UAVs and model-sized aircraft. We have tested over 100 propellers for low Reynolds number (UAV/model-sized) applications. Contact Prof. M.S. Selig for more information, e.g. model description, costs and scheduling.
  2. "I would like to find polars for a certain airfoil. Where can I get that info?"
    If you cannot find the experimental data, you can estimate the performance by running the XFOIL airfoil code which you can download from here: http://raphael.mit.edu/xfoil/. Also, you can join the Yahoo discussion group to get any help you need: http://groups.yahoo.com/group/xfoil/. Other airfoil tools can be found here: http://www.ae.illinois.edu/m-selig/ads.html
  3. "What is the Reynolds number? How do propellers work? Can you explain a drag polar? "
    A great resource: Aerodynamics of Model Aircraft by Martin Hepperle
  4. Low Reynolds number airfoil FAQ
  5. UIUC Airfoil Data Site FAQ
  6. Where can I get the LSATs books with airfoil wind tunnel data?
  7. Where is the UIUC Airfoil Data Site with all the airfoil coordinates?
  8. Where can I find the UIUC airfoil wind tunnel test data (UIUC LSATs data)?
  9. What airfoil is used on the [fill in the blank] airplane?