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HoneywellInternationalInc. CommercialElectronicSystems 5353W.BellRd. Glendale,Arizona85308--3912 U.S.A. (CAGE55939) PRIMUSr880DigitalWeather RadarSystem Pilot’s Guide Revised January 2006 Printed in U.S.A. Pub. No. A28--1146--102--03 September 1996
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PRIMUSr 880 Digital Weather Radar System Table of Contents Section Page 1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2. SYSTEM CONFIGURATIONS . . . . . . . . . . . . . . . . . 2-1 3. OPERATING CONTROLS . . . . . . . . . . . . . . . . . . . . 3-1 WI- 880 Weather Radar Indicator Operation . . . . . . 3-1 WC- 880 Weather Radar Controller Operation . . . . 3-11 WC- 884 Weather Radar Controller Operation . . . . 3-20 Hidden Modes . . . . . . . . . . . . . . . . . . .
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PRIMUSr880DigitalWeatherRadarSystem TableofContents(cont) Section Page 5. RADARFACTS (cont) Rain Echo Attenuation Compensation Technique (REACT) .................................. 5-37 Shadowing ............................... 5-40 Turbulence Probability ..................... 5-40 Turbulence Detection Theory ............... 5-42 Turbulence Detection Operation ............. 5-45 Hail Size Probability ....................... 5-47 Spotting Hail.............................. 5-48 Azimuth Resolution
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PRIMUSr880DigitalWeatherRadarSystem TableofContents(cont) A FEDERAL AVIATIONADMINISTRATION(FAA) ADVISORY CIRCULARS (CONT) SUBJECT: THUNDERSTORMS ............... A--4 Purpose.................................. A--4 Related Reading Material................... A--4 General .................................. A--4 Hazards.................................. A--4 National Severe Storms Laboratory (NSSL) Thunderstorm Research .................. A--11 B ENHANCEDGROUND--PROXIMITY WARNING SYSTEM(EGPWS) .....
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PRIMUSr880DigitalWeatherRadarSystem TableofContents(cont) ListofIllustrations(cont) Figure Page 5--1 Positional Relationship of an Airplane and Storm Cells Ahead as Displayed on Indicator ......... 5-2 5--2 Antenna Beam Slicing Out Cross Section of Storm During Horizontal Scan ...................... 5-3 5--3 Sea Returns ................................. 5-4 5--4 Radar Beam Illumination High Altitude 12--Inch Radiator ........................... 5-5 5--5 Radar Beam Illumination High Altitude 18--
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PRIMUSr880DigitalWeatherRadarSystem TableofContents(cont) ListofIllustrations(cont) Figure Page 5--32 Turbulent.................................... 5-45 5--33 Weather Display With Turbulence .............. 5-45 5--34 Turbulence Levels (From Airman’s Information Manual) ................................... 5-47 5--35 Hail Size Probability .......................... 5-48 5--36 Rain Coming From Unseen Dry Hail ............ 5-49 5--37 Familiar Hailstorm Patterns .................... 5-50 5--38 Oversh
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PRIMUSr880DigitalWeatherRadarSystem TableofContents(cont) ListofTables Table Page 2--1 Dual Control Mode Truth Table ................ 2-3 R 2--2 PRIMUS 880 Weather Radar Equipment List .... 2-4 3--1 Rainfall Rate Color Coding ................... 3-4 3--2 Target Alert Characteristics ................... 3-7 3--3 Rainfall Rate Color Coding ................... 3-13 3--4 WC--880 Controller Target Alert Characteristics ... 3-17 3--5 WC--884 Controller Target Alert Characteristics ... 3-21 3--6 Rainfa
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PRIMUSr 880 Digital Weather Radar System 1. Introduction R The PRIMUS 880 Digital Weather Radar System is a lightweight, X- band digital radar with alphanumerics designed for weather detection (WX) and ground mapping (GMAP). The primary purpose of the system is to detect storms along the flightpath and give the pilot a visual indication in color of their rainfall intensity and turbulence content. After proper evaluation, the pilot can chart a course to avoid these storm areas. WARNING THE SYSTEM
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PRIMUSr 880 Digital Weather Radar System The radar indicator is equipped with the universal digital interface (UDI). This feature expands the use of the radar indicator to display information such as checklists, short and long range navigation displays (when used with a Honeywell DATA NAV system) and electrical discharge data from Honeywell’ s LSZ- 850 Lightning Sensor System (LSS). NOTE: Refer to Honeywell Pub. 28- 1146- 54, LSZ- 850 Lightning Sensor System Pilot’ s Handbook, for more informati
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PRIMUSr 880 Digital Weather Radar System 2. System Configurations â The PRIMUS 880 Digital Weather Radar System can be operated in many configurations to display weather or ground mapping information on a radar indicator, electronic flight instrument system (EFIS) display, multifunction display (MFD), or on a combination of these displays. The various system configurations are summarized in the following paragraphs and shown in figure 2- 1. NOTE: Other configurations are possible but not illustr
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PRIMUSr 880 Digital Weather Radar System STAND- ALONE CONFIGURATION RTA INDICATOR WU- 880 WI- 880 SINGLE OR DUAL EFIS OPTION EFIS ONLY CONFIGURATION RTA CONTROLLER WU- 880 WC- 880 TRB STAB TGT SECT WX RCT PULL + PULL VAR SBY GMAP ACT OFF FP TST MIN MAX - GAIN RADAR SLV TILT TRB STAB TGT SECT PULL WX RCT PULL + ACT VAR SBY GMAP OFF FP TST MIN MAX - GAIN RADAR SLV TILT OPTIONAL 2ND CONTROLLER SINGLE OR DUAL EFIS EFIS / MFD CONFIGURATION RTA CONTROLLER WU- 880 WC- 880 TRB STAB TGT SECT WX RCT PULL
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PRIMUSr 880 Digital Weather Radar System The third system configuration is similar to the second except that a Honeywell multifunction display (MFD) system is added. As before, single or dual controllers can be used. When a single controller is used, all displays show the same radar data. Dual controllers are used to operate in the dual mode. The MFD can be slaved to either controller to duplicate the data displayed on the selected side. Table 2- 1is a truth table for dual control modes. Left Ri
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PRIMUSr880DigitalWeather Radar System NOTES: 1. ON is used to indicate any selected radar mode. 2. “SLV” means that displayed data is controlled by opposite side controller. 3. XXX/2meansthatdisplayiscontrolledbyappropriate on--side control for the antenna sweep direction associatedwiththatcontrol.(/2impliestwocontrollers are on.) 4. In standby, the RTA is centered in azimuth with 15_ upwardtilt.Videodataissuppressed.Thetransmitter is inhibited. 5. TheMFD,ifused,canrepeateitherleft-- orright--si
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PRIMUSr 880 Digital Weather Radar System WU- 880 RTA WC- 884 CONTROLLER WI- 880 INDICATOR WC- 880 CONTROLLER AD- 46691@ â Typical PRIMUS 880 Weather Radar Components Figure 2- 2 A28- 1146- 102- 00 System Configurations 2-5/(2-6 blank)
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PRIMUSr 880 Digital Weather Radar System 3. Operating Controls WI- 880 WEATHER RADAR INDICATOR OPERATION All controls used to operate the system display shown in figure 3- 1, are located on the WI- 880 Weather Radar Indicator front panel. There are three basic controllers that are described in this section, they are (in order of description): D WI- 880 Weather Radar Indicator D WC- 880 Weather Radar Controller D WC- 884 Weather Radar Controller. AUTO +1.0 TILT 50 40 AZ 30 20 1 2 3 4 T 10 â Typic
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PRIMUSr 880 Digital Weather Radar System 6 7 TRB RANGE 5 STB 4 8 RCT AZ 3 9 TGT SCT 1 GMAP BRT WX FP GAIN TILT + PULL 10 SBY TST VAR OFF 2 PULL MIN MAX ACT - 12 11 SBY LX OFF CLR TST BRT 10 AD- 46693- R1@ WI- 880 Weather Radar Indicator Front Panel View Figure 3- 2 1 Display Area See figure 3- 3and the associated text which explains the alphanumeric display. A28- 1146- 102- 00 Operating Controls 3-2
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PRIMUSr 880 Digital Weather Radar System TARGET/TARGET ALERT: T ARM (GREEN) ALERT (YELLOW INVERTED VIDEO) TGT TILT ANGLE ALTITUDE COMPENSATED FAIL TILT (ACT) NOTE A STB ANNUNCIATION RANGE RING REACT: RCT MARKERS (120- DEGREE MODE: SCAN SHOWN) STBY FSBY WAIT COLOR BAR: TEST 1 2 3 4 T WX CALIBRATED GAIN WX WX VARIABLE GAIN V A R ! WX/T FLTPLN 1 2 3 GMAP CALIBRATED GAIN GMAP VARIABLE GAIN GMAP V A R 1 2 3 4 T WX/T CALIBRATED GAIN NOTE:MESSAGES ARE LISTED WX/T VAR V A R ! IN PRIORITY ORDER. AD- 4669
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PRIMUSr 880 Digital Weather Radar System If WX is selected before the initial RTA warmup period is over (approximately 90 seconds), the white WAIT legend is displayed in the mode field. In wait mode, the transmitter and antenna scan are inhibited and the display memory is erased. When the warmup is complete, the system automatically switches to the WX mode. The system, in preset gain, is calibrated as listed in table 4- 1. Rainfall Rate Color in/hr mm/hr .04- .16 1- 4 Green .16- .47 4- 12 Yellow
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PRIMUSr880DigitalWeatherRadarSystem D FP(FlightPlan)--TheFPpositionputstheradarsystemintheflight planmode,whichclearsthescreenofradardatasoancillarydata canbedisplayed.Examplesofthisdataare: — Navigationdisplays — Electricaldischarge(lightning)data. NOTE: In the FP mode, the radar RTA is put in standby, the alphanumerics are changed to cyan, and the FLTPLN legendisshowninthemodefield. The target (TGT) alert mode can be used in the FP mode. With target alert on and the FP mode selected, the targe
