Airplane Flight Manual Supplement or Supplemental Flight Manual for the NGT-9000
Revision 4 Issue:
9/19/17
Page 8 of 27
Document Number L3-76AK-AFMS1
FAA Approved
There are four TAWS configurations available with the NGT-9000:
•
Disabled
•
TAWS B – Default Aural Phrases
•
TAWS B – Alternate Aural Phrases
•
Display Only – No Alerts
When a TAWS configuration is enabled with audio, an Audio Acknowledge button will cancel the
current aural announcement.
1.4 NGT-9000+ Traffic Awareness Overview [Optional]
The NGT-9000+ (“9000 Plus”) supports optional active Traffic Awareness System (TAS) and
Traffic Conflict Avoidance System (TCAS).
The TAS/TCAS options are active systems that operate as aircraft-to-aircraft interrogation
devices. The unit interrogates transponders in the surrounding airspace similar to ground based
radar. When replies to these active interrogations are received, the responding aircraft’s range,
altitude, and closure rates are computed to plot traffic location and predict collision threats. The
unit alerts the flight crew to nearby transponder equipped aircraft and assists the pilot in the
visual acquisition of aircraft that may represent a danger. Traffic information, out to a selected
range, is graphically displayed on the unit or alternate display.
Refer to the Pilot's Guide, L3 p/n
0040-17000-01 Revision K or later, for examples of on-screen symbology and aural alerts for
each system.
•
The system display shows the relative position of traffic using text, shapes (i.e., Traffic
Advisory = solid circle; Other Traffic = open diamond) and colors.
•
The effective active-mode surveillance range is 35 nm and the system is capable of
tracking 35 Intruders simultaneously with the target bearing relative to the nose of own
aircraft.
•
The tracking of targets is in a cylindrical volume centered on own aircraft that has, at a
minimum, a radius of 35 nm and extends 10,000 ft above and 10,000 ft below own
aircraft.
•
The system uses a voice audio output that announces Traffic Advisory and relative
altitude (with optional Extended Call-outs enabled).
•
The TCAS option qualifies as a TCAS I system and as such, offers only Traffic
Advisories (TA) (
“Traffic, traffic. 12-O’clock, one mile”
) but not Resolution Advisories
(RA) such as
“Climb, climb”
.
1.5 NGT-9000D Antenna Diversity Overview [Optional]
The NGT-9000D has the same hardware and firmware/software as the basic NGT-9000, but is
capable of supporting dual L-band antennas (one bottom and one top) to enhance system
performance and prevent fuselage blanking of a single bottom antenna in tight turns into a
ground station or UAT target. The upper L-band antenna may be a single blade antenna or the
optional Directional Antenna.
1.6 Capabilities
The NGT-9000 transceiver can be software configured as either an NGT-9000, 9000+, or
9000D. It can also be installed with, or without TAWS and peripheral ARINC-429 or RS-422
panel mounted traffic and weather displays.
