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 … 查看更多內容

The NACA four-digit wing sections define the profile by:
1. First digit describing maximum camber as percentage of the chord.
2. Second digit describing the distance of maximum camber from the airfoil leading edge in tenths of the … 查看更多內容

Four- and five-digit series airfoils can be modified with a two-digit code preceded by a hyphen in the following sequence:
1. One digit describing the roundness of the leading … 查看更多內容

An improvement over 1-series airfoils with emphasis on maximizing laminar flow. The airfoil is described using six digits in the following sequence:
1. The … 查看更多內容

NACA initially developed the numbered airfoil system which was further refined by the United States Air Force at Langley Research Center. … 查看更多內容

The NACA five-digit series describes more complex airfoil shapes. Its format is LPSTT, where:
• L: a single digit representing the theoretical … 查看更多內容

A new approach to airfoil design pioneered in the 1930s, in which the airfoil shape was mathematically derived from the desired lift characteristics. Prior to this, airfoil shapes were first created and then had their characteristics measured in a wind tunnel. The 1-series … 查看更多內容