NASA Spinoff

Advanced Air Data Systems for Commercial Aircraft

It is possible to get a crude estimate of wind speed and direction while driving a car at night in the rain, with the motion of the raindrop reflections in the headlights providing clues about the wind. The clues are difficult to interpret, though, because of the relative motions of

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Steering Aircraft Clear of Choppy Air

On December 28, 1997, a United Airlines plane flying from Japan to Hawaii experienced severe turbulence while over the West Pacific Ocean. Over 100 individuals on this flight of 374 passengers and 19 flight crew members were injured during the encounter, one fatally. Investigative reports issued following the incident indicated

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Damage-Tolerant Fan Casings for Jet Engines

All turbofan engines work on the same principle. A large fan at the front of the engine draws air in. A portion of the air enters the compressor, but a greater portion passes on the outside of the engine—this is called bypass air. The air that enters the compressor then

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InFlight Weather Forecasts at Your Fingertips

A new information system is delivering real-time weather reports to pilots where they need it the most—inside their aircraft cockpits. Codeveloped by NASA and ViGYAN, Inc., the WSI InFlight™ Cockpit Weather System provides a continuous, satellite-based broadcast of weather information to a portable or panel-mounted display inside the cockpit. With

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Putting Safety First in the Sky

Throughout aviation history, a condition known as hypoxia has posed a risk to aircraft pilots, crew members, and passengers flying at high altitudes. Hypoxia occurs when the human body is exposed to high altitudes without protection. Defined as an insufficient supply of oxygen to the body’s tissues, hypoxia affects the

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