NASA Studies Bumps to Smooth Supersonic Flight Smooth laminar flow is one of most promising technologies to improve the efficiency of subsonic aircraft, but it is hard to achieve on supersonic transports with highly swept wings. This is because of crossflow disturbances that run along the span of the wing and cause higher-drag turbulent flow. Aerion’s AS2 supersonic business jet design uses supersonic natural laminar flow to increase efficiency and reduce fuel burn, but it has an ...

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