Everything about Engineered Materials Arrestor System totally explained
An
Engineered materials arrestor system or
Engineered materials arresting system (EMAS) is a bed of lightweight, crushable
concrete built at the end of a runway. The purpose of an EMAS is to stop an overrun aircraft with no human injury and minimal aircraft damage (usually none). The aircraft is slowed by the loss of energy required to crush the concrete blocks. An EMAS is similar in concept to the
runaway truck ramp made of
gravel. An EMAS is intended to stop aircraft that have overshot a runway when there's an insufficient free space for a standard
runway safety area (RSA). The EMAS installed at JFK in 1999 has successfully stopped three aircraft, including one
Boeing 747.
The
December 8,
2005 accident of
Southwest Airlines Flight 1248 has brought up questions in the media about the need for EMAS at
Chicago Midway International Airport which is located in a heavily congested area. An EMAS has since been installed on Rwy 13C/31C
.
On
October 13,
2006,
New York Yankee Alex Rodriguez's private jet was brought to a halt safely by EMAS at
Burbank Airport.
Currently the only FAA approved producer of EMAS is Engineered Arresting Systems Corporation (ESCO). ESCO designs the EMAS beds and manufactures the concrete blocks at a facility in Logan Township, New Jersey. The concrete blocks cost US$1,000 each.
[
]Runway overshoots
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