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Clocks (A/CClocks (A/C 7002 to 7672) CLK 1 MAIN BAT DIR 5 A10
CLOCK 1 DC BAT 2 N11
CLK 2 MAIN BAT DIR 5 A11
CLOCK 2 DC BUS 2 2 H5
Clocks (A/C 7673 and7673 and subsequent)subsequent) CLOCK 1CLOCK 1 DC BAT 2 N11
MAINBATMAIN BAT DIR 66 B7
CLOCK 2CLOCK 2 B8
DC BUS 2 2 H5
Flight Crew Operating Manual MASTER
CSP A-
013
FLIGHT INSTRUMENTS Vol. 1 12-
70-
1
Head-
Up Guidance System REV 56, Jan 31/03
1. HEAD-
UP GUIDANCE SYSTEM <0026>
The head-
upguidancesystem(HGS)projectsinstrumentandairplane systemsdata holographicallybetween thepilotandthepilot’s windshield. Attitude,airspeed,flightpath guidance andotherinformation are displayedin symbolic format. HGS allows thepilotto fly theairplane duringCategoryIIIainstrumentapproachesin ahead-
upposition. A combiner opticallydiffracts (reflects)flight symbologytoinfinityandallows thepilotto lookthroughthe display withouteye movement orshiftin eye focus.
HGS consists ofthe following:
W Combiner, The combiner is mounted onthepilot’s windshieldframe andcan be usedduringground andflightoperations. The combiner is deployedand stowedby actuating aleveronthe RH side. Aninfraredtransmitterandalignmentdetectorautomatically checkiftheoptical element/combineris outofposition. The combiner also incorporates amanual/automatic brightness control.
W ControlPanel, The controlpanelis used tosetsystemreferences,flightandsystemtest modes.
W OverheadUnit, The overheadunit contains aCRTtogenerate symbologyand alens toprojectthe symbology onthecombiner.
W DriveElectronics Unit,
The drive electronics unit contains theCRTdrive circuitryandpower supplies.
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