Index   143 -- Page 144 -- 145

AIM                                                                                                        12/10/15



2-3-14. Aircraft Arresting Systems                        NOTE-
                                                          Aircraft operations on the runway are not restricted by the
                                                          installation of aircraft arresting devices.
  a. Certain airports are equipped with a means of
                                                            c. Engineered materials arresting systems
rapidly stopping military aircraft on a runway. This
                                                          (EMAS). EMAS, which is constructed of high
equipment, normally referred to as EMERGENCY
                                                          energy-absorbing materials of selected strength, is
ARRESTING GEAR, generally consists of pendant
                                                          located in the safety area beyond the end of the
cables supported over the runway surface by rubber
                                                          runway. EMAS will be marked with Yellow
"donuts." Although most devices are located in the
                                                          Chevrons. EMAS is designed to crush under the
overrun areas, a few of these arresting systems have
                                                          weight of commercial aircraft and will exert
cables stretched over the operational areas near the
                                                          deceleration forces on the landing gear. These
ends of a runway.
                                                          systems do not affect the normal landing and takeoff
                                                          of airplanes. More information concerning EMAS is
  b. Arresting cables which cross over a runway           in FAA Advisory Circular AC 150/5220-22,
require special markings on the runway to identify        Engineered Materials Arresting Systems (EMAS) for
the cable location. These markings consist of 10 feet     Aircraft Overruns.
diameter solid circles painted "identification yel-       NOTE-
low," 30 feet on center, perpendicular to the runway      EMAS may be located as close as 35 feet beyond the end of
centerline across the entire runway width. Additional     the runway. Aircraft and ground vehicles should never taxi
details are contained in AC 150/5220-9, Aircraft          or drive across the EMAS or beyond the end of the runway
Arresting Systems for Joint Civil/Military Airports.      if EMAS is present.



                                                   FIG 2-3-42
                               Engineered Materials Arresting System (EMAS)




2-3-30                                                                            Airport Marking Aids and Signs