Aviation News Item: 00186

27th Oct 2009

Source: ubmaviationnews.com

EASA has certified Airbus' 'brake-to-vacate' (BTV) and 'runway overrun warning and prevention' (ROW/ROP) systems for the A380. BTV links the aircraft's GPS navigation system and airport database - on-board airport navigation system (OANS) - with the auto-flight and auto-brake facilities. When the pilot chooses a runway exit point, the system indicates the estimated runway occupancy time and the minimum turnaround time. During the subsequent landing phase, and according to encountered runway conditions (i.e. 'wet' or dry'), the aircraft's deceleration is automatically regulated so it reaches the chosen exit at the correct speed. The complementary ROW/ROP system computes realistic operational landing distances and compares them to the available landing distance in real time, while accommodating factors including: aircraft velocity, position, altitude and weight; runway conditions; ambient temperature and wind; and runway elevation. The ROW forewarns the pilot, either, if the aircraft is approaching a runway that is deemed 'too short', or, if the remaining runway length becomes too short (e.g. if a 'late' touchdown point is predicted due to unstable approach conditions).

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