Heli Posted January 14, 2017 Posted January 14, 2017 (edited) AAR-47 nomenclature AN/AAR-47A(v)2 or AN/AAR-47B(v)2 Missile Warning Set (MWS) -Operational Flight Programs (OFP) 30.41 and 30.50 -Control indicator software versions 1.00-1.02 -Sensore software loads 1.03-1.04 Sensor FOV intercardinal headings (45,139,225,315), 90 deg FOV components Integrated Optical Sensor Converters (IOSCs), Countermeasure Signal Processor (CP), Control Indicator (CI) CP location and purpose left E-bay, receives and processes MW and LW signals from IOSCs and sends signal to CMDS if criteria is met IOSC apertures -MW optics collects UV radiation and filters out photons of the wrong wavelength -Photodiode detects the signal from low power Beam rider, Range Finder, and Designators -High Angular Resolution Laser Irradiance Detector provides angle of attack -Adjunct Detector works with blanking circuitry to protect from saturation during periods of intense in band radiation Difference between IOSC versions B(v)2 has an additional capability to detect noise patterns in UV clutter (tonal noise). it subtracts such tonal noise and evaluates the cleaned-up signal for the presence of an attacking IR missile how many laser threats can be displayed at one time 3 what is displayed for laser threats "LW" and azimuth of highest priority, compass rosette indication (up to 3), Threat classification (R, D, BR) of highest priority, LW uniques aural warning What is displayed for Missile threats "MW" and relative azimuth quadrant angle indication, Quadrant arrow indication MW unique aural warning what is displayed for hostile fire OFP 30.41: "HFI", quadrant indiction on rosette (multiple little lines), HFI unique aural warning OFP 30.50: same except "RKT" or "GUN" depending Threat priority Beam Rider, Missile threat, Laser Designator, HFI (rockets then guns for OFP 30.50), Range Finder What is displayed for blanking OFP 30.41: "# BLNK" with large arrow removed from rosette for blanking sensor OFP 30.50: "B" with large arrow removed from rosette for blanking sensor clutter indication reports average UV in band noise for each sensor, updated every 5 seconds, shows 4 sensors at 3 possible levels "L" low, "M" Medium, "H" High how many MW events can be logged 6 OLFT RQST O-Level Function Test: end to end test, requires support equipment OLST RQST O-Level Sensitivity Test: tests sensitivity of IOSCs, requires support equipment how to hear all tones? OFP 30.50 only, use "TONE TST?" in bit -a little "t" will appear in front of all warning types ready screen for OFP 30.41 "MW RDY" ready screen for OFP 30.50 "HCL RDY" depending on what is on, Laser automatically on, H&C can either turn on individually or choose "ALL ON?" in bit types of flares MJU-32/B or MJU-32A/B, MJU-38/B OR MJU-38A/B (jets), MJU-49/B, SM-875 sim flares Equipment Warm-Up Times: AN/AAR-47 Missile Approach Warning System 20 Seconds wavelength of laser the Missile Approach Warning detects 500-1600nm Types of HFI that the AAR 47 detects Type 1-tracers 3-rockets (Does NOT detect type 2, balls (no tracers)) https://quizlet.com/154429739/aar-47-flash-cards/ Edited January 14, 2017 by Heli
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