Quiz #5 NACA 4412 Characteristics

(Take home, individual work only)

(Due Monday in class)

Use the program located here to answer the following questions
  1. Determine the zero-lift angle of attack
  2. Determine the Moment coefficient about the aerodynamic center
  3. What is the % difference in you results from the NACA results given in the handout in class
  4. Explain briefly how you determined the answers to parts 1&2

Copy this problem sheet and fill in your answer below. 


1. Zero-lift alpha ________

2. Cmac           ________
 
3. NACA value for  Zero-lift alpha _______    % difference ______
   NACA value for  Cmac            _______    % difference ______
   
4. Explanation