integrated Secondary Flight Display (iSFD) - Meggitt Avionics

integrated Secondary Flight Display (iSFD)DescriptionThe Meggitt Avionics’ integrated Secondary Flight Display(iSFD) provides the best solution for standby flightinformation - attitude, altitude and airspeed; replacing two orthree electro-mechanical cockpit standby instruments with asingle 3ATI display unit.The iSFD is a 3ATI cockpit instrument with a high resolution,color active matrix liquid crystal display (AMLCD), with newLED backlight and compatible with the latest AMLCDprimary flight displays.Within the iSFD, solid state sensors and a microprocessorsystem measure aircraft pitch and bank attitudes and airdata.If measured air data is available from an aircraft multifunctionprobe (MFP) or air data computer (ADC), then theiSFD will receive and process the available digital air data.If digital magnetic heading data is available e.g. from aMeggitt Avionics Magnetic Heading Sensor (MHS), then theiSFD will also display aircraft magnetic heading.FeaturesAll solid state design requiring 28 VDC onlyLED backlit, color AMLCD displayHigh resolution display (300 x 300 pixels)Large useable screen area, fully anti-aliasedColor and formats closely matched to primary displays(2.5million colors)Mounting by standard 3ATI instrument panel clamp or flangeboltsVarious display options, including magnetic headingInstrument landing system (ILS) deviations can be displayed(glideslope, localizer and backcourse)Static source error correction (SSEC) optionExtensive built in test (BIT)Brightness control matched to primary displaysExcellent reliabilityStrong attitude performance using proven robust algorithmsAccurate and stable air data performance supports RVSMcompliancePassive cooling – no internal fansOperationApplication of power to the iSFD initiates the attitude alignmentprocess (60 seconds). Barometric pressure is adjusted usingthe bezel-mounted rotary knob, which if pressed selects“Standard” barometric pressure. Pressing the HP/IN buttonselects hectapascals or inches of mercury for barometricpressure units.

Operation (continued)The display provides warning of Vmo and Mmo (or Vne)using a red thermometer-style display an by changing theappropriate digits to red.At large pitch angles, some ground (for pitch up) or sky(pitch down) remains visible to provide a ready reference foraircraft attitude. Red warning chevrons appear at pitchangles of forty five degrees.The display is carefully configured to optimize the formatsand match with the primary displays so that pilot workload isreduced when using this system to fly the aircraft.SpecificationSizeWeightPoweriSFD Applications‣ commercial transport, fixed wing‣ commercial rotary wing‣ military transport, fixed or variable wing‣ military rotary wingiSFD Benefits‣ designed for digital air data interface‣ pitot-static pressure input option‣ highly efficient LED backlight‣ no ITAR components‣ future-proofing for long service life‣ service-proven robust attitude algorithms‣ short length, low weight and low power3ATI x 8 inches (204 mm) long4 lbs (1.81 kg)28 VDC14W normal operating, 22W cold start (150 foot lambertsdisplay luminance)18 W normal operating, 26 W cold start (300 foot lambertsdisplay luminance)Aircraft system interfaceMountingARINC-429, MIL-STD-1553BStandard 3ATI instrument clamp or flange bolt mountingDisplayEnvironmentalStandardsActive areaResolutionOperating temperatureStorage temperatureEnvironmentalHardwareSoftwareTSOs2.4 x 2.4 inches (61 x 61mm)300 x 300 pixels-40° C - +70° C-55° C - +95° CRTCA/DO-160EDO-254 Level BRTCA/DO-178B Level BC106, C3d, C4c, C6d, C113Specification subject to change.© Copyright Meggitt Avionics 2008Meggitt Avionics7 Whittle AvenueSegensworth WestFarehamHantsPO15 5SHUKTel: +44 (0) 1489 483300Fax: +44 (0) 1489 483340www.meggitt-avionics.co.ukwww.meggitt.com