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Would EMAS have prevented the Kerala air tragedy? | India Information

The Kozhikode air crash was the second incident in India of an plane overshooting the runway on a tabletop airport. The primary, in Mangalore in 2010, additionally concerned an Air India Specific aircraft and claimed over 150 lives. The kozhikode crash has as soon as once more opened up a debate, whether or not such airports ought to have an additional layer of security mechanism to forestall such incidents.
A security mattress: Plane overshooting the runway is not unusual however because the Calicut airport accident exhibits it will possibly have devastating penalties typically. To forestall such runway excursions, a number of the world’s main airports have a security mechanism known as arrestor beds to decelerate or halt a aircraft if it overshoots the runway. Such arrestors are particularly necessary for airports that can’t afford to have a protracted security space past the runway both as a result of lack of area or because of the nature of the airport (desk tops as an illustration).
The concept: The fundamental concept behind arrestors is that the “gentle floor” that they create deforms simply below the burden of the plane that has overshot the runway. Because the plane’s tires crush the fabric it’s product of, the drag slows it down. Aviation regulators have labored with the trade, have provide you with engineered options for the design of those arrestors in addition to the fabric that goes into them. Mathematical fashions have helped predict plane stopping distances which have been additional validated by full-scale plane testing.

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A tabletop runway
The system: The Engineered Materials Arresting System (EMAS) permitted by the US Federal Aviation Administration (FAA) is among the commonest security mechanisms in use world wide. It was an plane overrun in New York in 1984 that was the catalyst within the improvement of EMAS. A program initiated by the FAA in 1989 led to experiments on numerous soft-ground supplies like phenolic foam and mobile cement, in addition to designs of the security beds. Starting in 1994, a prototype arrestor mattress constructed with precast mobile cement blocks was examined on the JFK airport in New York and the primary one put in in 1996. The FAA issued the primary broad specs for EMAS design, set up and upkeep in 1998. Since then, over 100 airports world wide have put in it to forestall runway overruns. A regular EMAS can cease an plane from overrunning the runway at roughly 80 miles per hour.
The makers: The FAA defines ‘engineered supplies’ as ‘excessive vitality absorbing supplies of chosen energy which can reliably and predictably crush below the burden of an plane’. The precise materials, nonetheless, varies relying on the producer. For example, whereas the US firm Zodiac Arresting Methods makes use of blocks of light-weight, crushable mobile concrete materials, the Swedish firm Runway Secure AB’s EMAS system has a foamed silica mattress comprised of recycled glass.

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EMAS have efficiently prevented plane from accidents on tabletop runways
The value: The FAA lists not less than 15 incidents within the US the place EMAS programs have safely stopped overrunning plane, carrying 406 crew and passengers, aboard these flights. One of many first successes of the EMAS got here in Could 1999 when a Saab 340 commuter plane with 30 folks on board overran the runway at JFK Airport in New York. In December 2018, the system halted a Boeing 737 with 117 on board that overran the runway at Bob Hope Airport in Burbank, California.
In India: After the Mangalore crash in Could 2010, which killed 159 folks, a courtroom of inquiry report stated table-top runways (like in Calicut and Mangalore) ought to have arrestor platforms, such because the EMAS, at both finish of the runway in order that planes come to a halt when the wheels sink on it when the aircraft rolls off the runway. Nonetheless, airports have cited the excessive operational and upkeep price of the system to not set up it in India. A 2018 newspaper report quotes the then Calicut airport director saying: “The EMAS know-how was unsuitable for the Calicut airport. How can we bear the price of Rs 100 crore for an imported know-how”. Moreover, as soon as an EMAS has had an plane affect, it must be changed because it can’t be repaired, which suggests one other invoice of Rs 100 crore or extra. The Calicut airport, which is positioned on a hill with restricted area on the finish of the runway, too doesn’t have the system and that had prompted a number of worldwide airways to cease flying greater plane there as a result of questions of safety.

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Shreya Sharma

Hey this is Shreya From ShoppersVila News. I'm a content creator belongs from Ranchi, India. For more info contact me [email protected]

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