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NACA experience provided a model for World War II research, the postwar government laboratories, and NACA's successor, the National Aeronautics and Space Administration (NASA). NACA also participated in development of the first aircraft to fly to the "edge of space", North American's X-15. NACA airfoils are still used on modern aircraft.
For example, the NACA 2412 airfoil has a maximum camber of 2% located 40% (0.4 chords) from the leading edge with a maximum thickness of 12% of the chord. The NACA 0015 airfoil is symmetrical, the 00 indicating that it has no camber. The 15 indicates that the airfoil has a 15% thickness to chord length ratio: it is 15% as thick as it is long.
The NACA design is believed to work because the combination of the gentle ramp angle and the curvature profile of the walls creates counter-rotating vortices which deflect the boundary layer away from the inlet and draws in the faster moving air, while avoiding the form drag and flow separation that can occur with protruding scoop designs.
Application forms are the second most common hiring instrument next to personal interviews. [9] Companies will occasionally use two types of application forms, short and long. [citation needed] They help companies with initial screening and the longer form can be used for other purposes as well [clarify]. The answers that applicants choose to ...
The California Labor and Workforce Development Agency (LWDA) is a cabinet-level agency of the government of California.The agency coordinates workforce programs by overseeing seven major departments dealing with benefit administration, enforcement of California labor laws, appellate functions related to employee benefits, workforce development, tax collection, economic development activities.
Aviation in the United States was not regulated during the early 20th century. A succession of accidents during the pre-war exhibition era (1910–16) and barnstorming decade of the 1920s gave way to early forms of federal regulation intended to instill public confidence in the safety of air transportation. [7]
It is a member-only organization that provides programs and events focused on student and professional leadership development, program planning, and concert management. NACA connects higher education institutions (called school members) and the entertainment industry (called associate members), hosting events with musical artists, comedians ...
It was Earl Warren’s way of saying that the unions were recognized as an important part of California society." [4] Unlike the University Extension program, the IIR was under the control of university faculty and focused on research rather than popular education. In 1964, the university created the Centers for Labor Research and Education (or ...