page_title: NACA cowling
hierarchical_section_title: NACA cowling
caption_attribution_description: English: Curtiss AT-5A Hawk with NACA cowling in 1928.
context_page_description: The NACA cowling is a type of aerodynamic fairing used to streamline radial engines installed on airplanes. It was developed by the National Advisory Committee for Aeronautics in 1927. It was a major advance in aerodynamic drag reduction, and paid for its development and installation costs many times over due to the gains in fuel efficiency that it enabled.
context_section_description: The NACA cowling is a type of aerodynamic fairing used to streamline radial engines installed on airplanes. It was developed by the National Advisory Committee for Aeronautics in 1927. It was a major advance in aerodynamic drag reduction, and paid for its development and installation costs many times over due to the gains in fuel efficiency that it enabled.
caption: Curtiss AT-5A Hawk with NACA cowling at the Langley Memorial Aeronautical Laboratory, October 1928.
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