Tag Results for TCAS (3)

  1. The Risk of Midair Collision and TCAS Collision-Avoidance Systems: Part II

    (Part I of this blog begins here.) We need a little bit of history before we continue. The story is agreed by most to start 52 years ago, with the midair collision of two transport aircraft, a TWA Lockheed 1049A and a United Douglas DC-7 over the Grand Canyon on 30 June, 1956. 128 people died. Commercial flights in visual conditions were then conducted under visual flight rules (VFR), and the collision-avoidance mechanism is see-and-avoid. Pilots must keep a lookout for other traffic, and manoeuvre if necessary to avoid a collision. The Civil Aeronautics Board …

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  2. The Risk of Midair Collision and TCAS Collision-Avoidance Systems: Part 1

    I recently came across an article in the Wall Street Journal by Andy Pasztor, â''Rise in Collision Hazards for Planes Spurs Changesâ'', concerning airborne conflicts between commercial transport aircraft, which appear to be on the rise in Europe and North America. I asked a renown air safety expert, Dr. Peter Ladkin,Professor of Computer Networks and Distributed Systems and lead the group of the same name, at the University of Bielefeld in Germany if he could comment on the issues raised. Well, Peter graciously said sure, and below is the start …

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  3. New technology is making the skies just a bit friendlier

    Ten years ago, in â''The Truth about Air Traffic Control,â'' I quoted Neil Planzer, then director of the Air Traffic System Requirements Service for the Federal Aviation Administration, who said that, by the year 2015, if the U.S. air transportation system does not change in any significant way, there could be a major aviation accident every seven to ten days.â'' Planzer at the time was looking at data that showed historical accident rates for certain volumes of traffic, and a future in which air traffic over the U.S. was likely to climb steadily. Adding the statistics together did not …

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