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15.9 FIELD ARRESTMENTS
15.9.1 Field Arresting Gear. The types of field arresting
gear in use include the anchor chain cable, water
squeezer,a nd Morest-type equipment. All require engagement
ofthe arresting hook in a cable pendant rigged
across the runway. Location of the pendant in relation
to the runway will classify the gear as follows:
1. Short-field gear - Located 1,500 to 2,000 feet
past approach end of runway. Usually requires
prior notification in order to rig for arrestment.
2. Midfield gear - Located near the halfway point
of the runway. Usually requires prior notification
in order to rig for arrestment in the direction
desired.
3. Abort gear - Located 1,500 to 2,500 feet short
of the departuree ndo f the duty runway andu sually
rigged for immediate use.
4. Overrun gear - Located shortly past the upwind
end of the duty runway. Usually rigged for immediate
use.
Some fields will have all types of gear, others none.
For this reason, it is imperative that all pilots be aware
of the type, location, and compatibility of gear in use
with the aircraft, and the policy of the local air station
with regard to which gear is rigged for use and when.
As various modifications to the basic types of arresting
gear are made, exact speeds will vary accordingly.
Certain aircraR service changes may also affect engaging
speed and weight limitations.
An engagement in the wrong direction into
chain gear can severely damage the aircraft.
15-17 ORIGINAL
NAVAIR 01-Fl4AAD-1
In general, arresting gear is engaged on the centerline
at as slow a speed as possible. Burn or dump down to an
acceptablela nding weight. Conditions permitting, make
practice passes to accurately locate the arresting gear.
Engagement should be made with feet off the brakes,
shoulderharnesslo cked, and with the aircraft in a threepoint
attitude. After engaging the gear, good common
sense and existing conditions dictate whether to keep the
engines running or to shut down and egress the aircraft.
In an emergency situation, first determine the extent
of the emergency by whatever means are available
(instruments, other aircraft, LSO, RDO, tower or other
ground personnel). Next, determine the most advantageous
arresting gear available and the type of arrestment
to be made under the conditions. Whenever deliberate
tieldarrestment is intended,notify control towerpersonnel
as much in advance as possible and state estimated
landing time in minutes.
If gear is not rigged, it will probably require 10 to 20
minutes to prepare. If foaming of the runway or area of
arrestment is required or desired, it should be requested
by the pilot at this time.
If fuel is streaming from the bottom of the aircraft, a
field arrested landing is not recommended because of
thehighprobabilityofsparksandheat from thearresting
hook igniting the streaming fuel and air mixture. If an
arrestedla nding is mandatedb ecauseo f the lack of adequate
braking or runway conditions, an effort should be
made to foam the runway in the runout area of the arresting
gear.
15.9.2 Short-Field Arrestment. If at any time before
landing a directional control problem exists or a
minimum rollout is desired, a short-field arrestment
should be made and the assistance of LSO requested.
The LSO should be stationed near the touchdown point
and equipped with a radio. Inform the LSO of the desired
touchdown point. A constant glideslope approach to
touchdown is permitted (minor or Fresnel lens landing
aid) with touchdown on centerline at or just before the
arresting wire with the hook extended. The hook should
be lowered while airborne and a positive hook-down
check should be made. Use midfield gear or Moresttype,
whenever available. If neither is available, use
abort gear. Use an approach speed commensurate with
the emergency experienced. Landing approach power
will be maintained until arrestment is assured or a
waveoff is taken. Be prepared for a waveoff if the gear
is missed. AAer engaging the gear, retard the throttles to
IDLE or secure engines and abandon aircraft, depending
on existing conditions.
15.9.3 Long-Field Arrestment. ‘Ihelong-tieldarrestment
is used when a stopping problem exists with
insufficient runway remaining (that is, aborted takeoffs,
icy or wet runways, loss of brakes after touchdown,
etc.). Lower the hook, allowing sufftcient time for it to
extend Molly before engagement (normally 1,000 feet
before reaching the arresting gear). Do not lower the
hook too early and weaken the hook point. Line up the
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F-14D 飞行手册 Flight Manual 2(136)
