PRIMUS® 440, 660 & 880
WEATHER RADARS
Reliable Weather Avoidance Radar
Commercial Aviation’s Most Powerful Integrated RTA
Weather Radar with Turbulence Detection.
Operators want quality radar performance, improved reliability and advanced features – they
also want a light integrated receiver/transmitter/antenna (RTA)architecture that’s easy to install.
Honeywell’s Primus® 440/660/880 family of radars meet these requirements and are by far the
most powerful, feature-packed weather radars on the market.
The Primus 440, 660 and 880 all offer:
Performance and Reliability
Installation
The Primus 440, 660 and 880 are designed
radar, installation is straight-forward. The system
using all of Honeywell’s weather radar expertise
requires only a display and a control panel to
to provide the ultimate in both performance and
complete the package.
reliability. The Primus 440, 660 and 880 excel in
all three weather radar performance categories.
Transmitter power: 10 kilowatts of power allows
for unsurpassed range in class.
Since the Primus 440, 660 & 880 are RTA- style
Weather Detection
Rainfall intensity levels are displayed in four
brilliant colors contrasted against a black
background. The result is a crisp display that
Pulse width: Primus 440, 660 and 880’s
makes any target readable under any cockpit
narrow pulse width provides better resolution
lighting conditions. Magenta represents areas
of the reflected signal which makes it easier to
of severe rainfall, red shows heavy rainfall, yellow
distinguish ground from weather.
represents medium rainfall and green indicates
light rain. To help in analyzing the storm,
Honeywell, the
world’s leader in
avionics continues
to set the standard
in weather radar
systems with the
Primus® 440, 660
and 880 family of
radars.
Receiver sensitivity: Primus 440, 660 and 880’s
Honeywell’s Primus 440, 660 and 880 informs
high receiver sensitivity allows the radar to detect
pilots of the operating mode, distance to each
extremely weak signals from distant storms.
range mark and antenna tilt angle.
Primus 440, 660 & 880 vs. Its Hostile
Environment
Displays
A radar system is installed in one of the most
with EFIS as well as a number of stand-alone
hostile environments on an aircraft–the nose.
radar displays and multifunction displays.
Water in the radome can cause weather radar
problems. Primus 440, 660 & 880 has been
designed to work in the worst of all environments,
even a direct shower.
Primus 440, 660 and 880 naturally integrate
REACT
Dual Mode
Honeywell’s exclusive Rain Echo Attenuation
Dual Mode With two controllers, Primus 660
Compensation Technique (REACT) safety
and 880 can be operated like two separate
feature alerts pilots to areas where storms may
radars. The pilot’s controller settings are used
be hidden behind other storms. REACT performs
for one sweep, then the co-pilot’s are used for
three distinct functions. First, it maintains target
the subsequent sweep.
calibration by compensating for attenuation
caused by intervening rainfall. Second, REACT
advises pilots of areas where target calibration
cannot be maintained by changing the screen
background to blue, warning that attenuation
may be hiding areas of severe weather. Third,
REACT
Sector Scan
In normal mode, Primus 660 and 880 scans
once every four seconds. In Sector Scan (SECT)
mode, the scan rate increases to two seconds
when faster updates are needed due to storm
any target displayed in the blue field will appear
activity directly ahead on short range.
in magenta to alert the pilot to its probable
BITE
THE PRIMUS 880 ADDITIONAL
FEATURES INCLUDE:
Ground Mapping
Built-In Test Equipment (BITE) features
Ground mapping (GMAP) is a navigation aid,
complete RF loop-back which continuously
and the Primus 880 has a mode specifically for
tests the transmitter power and receiver
depicting terrain features.
severity.
sensitivity and reports any faults to the pilot.
BITE also monitors the time of operation in
every mode, the time at incremental altitudes
and the time at incremental temperature to help
service technicians identify any faults.
Turbulence exposes pilots, passengers and
aircraft to unnecessary risk that may be present
in any level of precipitation – even those with
weak radar returns that may appear safe to fly
through. The Primus 880 radar uses advanced
Honeywell’s optional LSZ-860 Lightning Sensor
Doppler “pulse pair processing” techniques
System (LSS) protects aircraft from the inherent
to detect spectrum spreading caused by
hazards of lightning. The overlay of lightning
turbulence within any storm cell — regardless
information onto the precipitation/turbulence
of rainfall rates. Once detected, the turbulent
display of the Primus 440/660/880 provides
areas are displayed in white on all ranges up to
the safest and most powerful severe weather
50 nautical miles. This allows pilots to safely
avoidance tool available today.
maneuver around uncomfortable, possibly
Target Alert (TGT) notifies the pilot of potentially
hazardous targets directly in front of the aircraft
that are not yet within the selected range. When
“T” is displayed in green, Target Alert is armed.
When the yellow “TGT” is displayed (left), the
pilot is warned of a red level target directly in
front of the aircraft (within ±7.5° of the aircraft’s
nose).
Sector Scan
Turbulence Detection
LIGHTNING SENSOR SYSTEM
THE PRIMUS 660 AND 880
ADDITIONAL FEATURES INCLUDE:
Target Alert
Target Alert
Ground Mapping
Turbulence Detection
hazardous weather.
Altitude Compensated Tilt (ACT)
ACT allows easier detection of weather that
may affect the aircraft in an en route condition
and reduces the amount of tilt management
required by the pilot. When ACT is selected, the
Primus 880 reads the altitude and selected
range, then points the antenna at the ground
just inside the selected range. ACT automatically
adjusts the tilt with any change in altitude. ACT
also changes the tilt control from the normal
±15° to ±2° for finer control.
Primus 440, 660
and 880’s narrow
pulse width provides
better resolution of
the reflected signal
which makes it easier
to distinguish ground
from weather.
Feature Comparison:
FEATURE
P-880
P-660
P-440
TRANSMITTER POWER
10,000 W
10,000 W
10,000 W
PULSE WIDTH
1 or 2 usec
1 or 2 usec
1 or 2 usec
RECEIVER SENSITIVITY
-118 dBm
-118 dBm
-118 dBm
REACT
Yes
Yes
Yes
ADVANCED BITE
Yes
Yes
Yes
TURBULENCE DETECTION
Yes
No
No
ALTITUDE COMPENSATED TILT (ACT)
Yes
No
No
10”,12”,15”,18”,24”
10”,12”,15”,18”
10”,12”
120°
120°
120°
STABILIZED ANTENNA
Yes
Yes
Yes
TARGET ALERT
Yes
Yes
No
REDUCED SECTOR SCAN
Yes
Yes
No
MAX DISPLAY RNG (WXPD MODE ONLY)
300 NM
300 NM
200 NM
MAX DISPLAY RNG (ARINC 453 MODE ONLY)
320 NM
320 NM
240 NM
GROUND MAP MODE
Yes
Yes
No
DUAL CONTROL
Yes
Yes
No
28VDC
28VDC
28VDC
AVAILABLE ANTENNA SIZE
MAXIMUM SCAN ANGLE
VOLTAGE
Supporting the System
Honeywell’s avionics are based on proven technology to provide you with exceptionally high
reliability and simplified maintenance.
Our award-winning product support services include regularly scheduled training classes offered
worldwide for both flight crews and maintenance personnel. When service is needed, a global
dealer network is the front line for the Primus 880. Honeywell’s Customer and Product Support
organization is committed to keeping your weather radar operating day and night, around the world.
Find Out More
For additional information, please visit
aerospace.honeywell.com
Honeywell Aerospace
1944 East Sky Harbor Circle
Phoenix, AZ 85034
aerospace.honeywell.com
N61-1682-000-000 I 12/16
© 2016 Honeywell International Inc.
Primus 440, 660
and 880’s high
receiver sensitivity
allows the radar to
detect extremely
weak signals from
distant storms.
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