What does every number of NACA 4412 airfoil mean?
The NACA 4412 is a four digit airfoil. The first digit expresses the camber in percent chord, the second digit gives the location of the maximum camber point in tenths of chord, and the last two digits gives the thickness in percent chord.
What is a NACA 0012 airfoil?
NACA 0012 mean that there is no camber i.e. zero camber is present, and it has the maximum thickness of the airfoil at 12% of the chord from the leading edge.
How do you read a NACA airfoil?
The airfoil is described by seven digits in the following sequence:
- The number “7” indicating the series.
- One digit describing the distance of the minimum pressure area on the upper surface in tenths of the chord.
- One digit describing the distance of the minimum pressure area on the lower surface in tenths of the chord.
How do you read a 4 digit NACA airfoil?
The NACA four-digit wing sections define the profile by:
- First digit describing maximum camber as percentage of the chord.
- Second digit describing the distance of maximum camber from the airfoil leading edge in tenths of the chord.
- Last two digits describing maximum thickness of the airfoil as percent of the chord.
How do you calculate aerofoil coordinates?
In this case, multiply the chord of the airfoil you are plotting times percent of the station/ordinate pairs in percent. In other words, if the number given is 1.25 then multiply times 1.25%. If your calculator does not have a percent key, then multiply times 1.25 and then divide by 100.
How do you read a 5 digit NACA airfoil?
NACA Five-Digit Series: The first digit, when multiplied by 3/2, yields the design lift coefficient (cl) in tenths. The next two digits, when divided by 2, give the position of the maximum camber (p) in tenths of chord. The final two digits again indicate the maximum thickness (t) in percentage of chord.
What is the NACA?
The Neighborhood Assistance Corporation of America (“NACA”) is a non-profit, community advocacy and homeownership organization. NACA’s primary goal is to build strong, healthy neighborhoods in urban and rural areas nationwide through affordable homeownership.