Non-circular aft nacelle cowling geometry
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United States of America Patent
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Jun 12, 2018
Issued Date -
Sep 3, 2015
app pub date -
Apr 1, 2015
filing date -
Mar 30, 2010
priority date (Note) -
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Abstract
A nacelle for a turbofan propulsion system that extends along a centerline includes a forward cowling and an aft cowling. To improve the fit of a turbofan propulsion system in the space between the wing and ground of a fixed-wing aircraft, the aft cowling of the nacelle is modified. The aft cowling has a non-circular cross-sectional geometry disposed in a plane substantially perpendicular to the centerline. The non-circular cross-sectional geometry includes a radially recessed section disposed between first and second curved sections. The first and the second curved sections each have a radius that is greater than a radial distance between the centerline and a center point of the radially recessed section.
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