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assume that an actual planing link failure exists.
With an actual planing link failure, the aircraft will tend to drift into the failed gear even when
brakes are not applied. With brakes applied, a large directional excursion and/or potential loss of
directional control can be anticipated. For this reason, aircrew should attempt to make a fly-in short
field arrestment if at all possible.
Use of wheel brakes with a planing link failure may cause a sudden swerve
in the direction of the failed gear.
Planing link failure indications that are momentary or disappear after
initial activation may be indicative of an actual planing link failure.
If detected on touchdown -
1. Execute Loss of Directional Control During Takeoff or Landing Procedure.
2. Once stopped or clear of runway, do not taxi.
If detected airborne -
1. LDG GEAR handle - DO NOT CYCLE
2. ANTI SKID switch - OFF
If arresting gear available -
3. Make a fly-in short field arrestment with LSO assistance.
If arresting gear not available -
3. Make a minimum sink rate landing. Consider touchdown on ²good gear² side of the runway. Avoid
braking until as slow as practical or until needed to prevent loss of directional control.
4. Brake using the good gear and maintain directional control with NWS.
5. Use symmetrical braking only if necessary to avoid departing the runway.
6. Once stopped or clear of runway, do not taxi.
A1-F18EA-NFM-000
V-16-9 ORIGINAL
16.8 Deleted
16.9 ARRESTMENT - FIELD
Maximum engaging speeds, gross weights, and off-center distances are listed in the Field Arresting
Gear Data charts, figure 16-2.
16.9.1 Arresting Gear Types. Field arresting gear includes anchor chain, water squeezer, and Morest
types. All types require arresting hook engagement with a crossdeck pendant cable rigged across the
runway. Arresting gear location varies as follows:
· SHORT FIELD - Located 1,500 to 2,000 feet past the approach end of the runway. May require
a request and slight delay to rig.
· MIDFIELD - Located near the halfway point of the runway. May require a request to rig for the
desired direction.
· LONG FIELD or ABORT - Located 1,500 to 2,000 feet short of the departure end of the runway.
Usually rigged for immediate use.
· OVERRUN - Located shortly past the departure end of runway. Usually rigged for immediate
use.
A1-F18EA-NFM-000
V-16-10 CHANGE 1
A field may have none, all, or any combination of these arresting gear types. Knowing the type,
location, and compatibility with the aircraft of the installed gear is mandatory. Knowing the local
policy for rigging installed gear is also required.
Wrong direction engagement of chain-type arresting gear can severely
damage the aircraft.
16.9.2 Arrestment Decision. The decision to take an arrested landing is dependent on the emergency
situation. In an emergency, use all available means to determine the status of the aircraft (instruments,
other aircraft, LSO, RDO, tower or other ground personnel). Typically, emergencies related to the loss
of the utility hydraulic system (e.g., loss of normal brakes and NWS), or to questionable braking, or
directional control (e.g., planing link failure, blown tire, or brake problem) dictate making an arrested
landing. If in doubt, a precautionary arrested landing is always prudent. If fuel is streaming, a field
arrested landing is not recommended due to the high probability that sparks and heat from the hook
may ignite the fuel.
Once the decision to arrest has been made, determine the best available arresting gear type and
location. Notify the control tower as far in advance as possible and give estimated time to landing in
minutes. Unrigged gear may require 10 to 20 minutes to rig. If winds are light and the emergency
situation dictates, the tower may request an arrested landing on an off-duty runway to retain the
capability to launch and recover other aircraft. If unfamiliar with arresting gear location, consider
making a practice pass.
Engage arresting gear on runway centerline, in the three-point attitude, as slow as practical, and with
feet off the brakes until engagement. After arrestment, common sense and conditions determine
whether to keep engines running or to shut down the engines and evacuate the aircraft.
16.9.3 Arrestment - Short Field. Make a short field arrested landing for anticipated directional
control or brake problems or if minimum rollout is desired. If available, request LSO assistance. The
LSO should have radio communications and be stationed near the touchdown point.
Inform the LSO of the intended touchdown point, if other than immediately before the gear. Lower
the hook before starting the approach and, if possible, get a positive hook down check.
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NATOPS Flight Manual 飞行手册 2(63)
