Table of Contents
What is NACA 4 digit series?
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 many NACA airfoils are there?
78 airfoils
By 1929, Langley had developed this system to the point where the numbering system was complemented by an airfoil cross-section, and the complete catalog of 78 airfoils appeared in the NACA’s annual report for 1933.
What are the major differences in NACA 4 digit and 5 digit series airfoils?
The NACA Five-Digit Series uses the same thickness forms as the Four-Digit Series but the mean camber line is defined differently and the naming convention is a bit more complex. The first digit, when multiplied by 3/2, yields the design lift coefficient (cl) in tenths.
What is the goal of NACA?
The National Advisory Committee for Aeronautics (NACA) was a United States federal agency founded on March 3, 1915, to undertake, promote, and institutionalize aeronautical research.
Is NACA legit?
NACA is a nonprofit and HUD-certified homeownership and advocacy organization that is committed to assisting economically disadvantaged individuals with becoming homeowners by offering loans at below-market interest rates with no down payment or closing costs.
What is the difference between NACA profiles?
The NACA profiles are variations of an original profile. The NACA has created numerous profile tables for the various NACA profiles (NACA catalog) for a standardized description of profiles.
What are the NACA airfoil numbers?
This NACA airfoil series is controlled by 4 digits e.g. NACA 2412, which designate the camber, position of the maximum camber and thickness. If an airfoil number is NACA MPXX e.g. NACA 2412
What is the NACA 23112 profile?
For example, the NACA 23112 profile describes an airfoil with design lift coefficient of 0.3 (0.15*2), the point of maximum camber located at 15\% chord (5*3), reflex camber (1), and maximum thickness of 12\% of chord length (12). where the chordwise location and the ordinate have been normalized by the chord.
What does NACA stand for?
NACA airfoil. The NACA airfoils are airfoil shapes for aircraft wings developed by the National Advisory Committee for Aeronautics (NACA). The shape of the NACA airfoils is described using a series of digits following the word “NACA”.