1 / 22

AST 473 Cessna Citation II Basic Avionics and Flight Instrumentation (UNs 210 – 626)

AST 473 Cessna Citation II Basic Avionics and Flight Instrumentation (UNs 210 – 626). Dr. Barnhart. Avionics & Flight Instrumentation. Important note: Avionics vary widely according to specific aircraft. Spend time learning your aircraft

karena
Download Presentation

AST 473 Cessna Citation II Basic Avionics and Flight Instrumentation (UNs 210 – 626)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. AST 473 Cessna Citation IIBasic Avionics and Flight Instrumentation (UNs 210 – 626) Dr. Barnhart

  2. Avionics & Flight Instrumentation • Important note: Avionics vary widely according to specific aircraft. Spend time learning your aircraft • FSI’s sim. Is the old steam gauge II (models a S/N 0210 – 0626)

  3. Avionics • Sperry electromechanical • Dual audio control panels • Dual VHF Comm. Transceivers • Dual Navs. • Dual RMI’s, ADF, DME • Autoflight system (altitude pre-select, alt. alert, alt. reporting, and vert. nav.) • Weather Radar

  4. Avionics • Pilot’s Flight Instruments: • ADI (5 inch, Dual-cue flight director, 12 annunciators for flt. Director modes)- displays AOB, G/S, T&B, Loc, Radio alt) • HSI • RMI (w/ ADF) • Altimeter- driven by Air Data Computer (ADC)

  5. Avionics • Co-Pilot’s instruments: • Basic 6-pack layout w. HSI • RMI (with ADF) (altimeter is conventional barometric)

  6. Avionics • Flight Guidance- SPZ-500 autopilot/FD- complete flight control system: • Flight Director • Autopilot • Pilot’s ADI/HSI • Air Data Computer • Autopilot controller • Vert. Nav. System- alt. alerter, Touch Cnt’l Steering (TCS), rate gyro, autopilot servos

  7. Avionics • Flt. Guidance System- operates via the pilot’s ADI/HSI • ADC provides P.A. input, alt. reporting, alt. pre-select, IAS hold and vert. speed mode • Can be flown manually or automatically • Meets CAT II requirements

  8. Avionics • Mode Control Panel- • Push on/off backlighted switches • Displays selected flight director mode- amber when armed or green when captured • FD OFF- puts command bars down out of view- doesn't affect autopilot

  9. Avionics • Autopilot Control Panel- provides means of engaging autopilot and yaw damper (as well as manually controlling autopilot via turn knob and pitch wheel) • Two torque modes (high and low speed- baro. set to 14,500 ft. in co-pilot’s static system) • Autopilot switch engages autopilot and Yaw Damper (aid to pax. Comfort)

  10. Avionics • Autopilot ctn. • SOFT RIDE switch- maintains stability in rough air- minimizes autopilot gains. • TEST EACH FLT- activates a test of the current monitor for A/P • Pressing causes A/P to disengage- simulates failure of torque limiters- must disengage w/I 2 sec. • AUTOPILOT OFF illuminates and warning sounds • TRIM light illuminates UP/DOWN when sustained signal applied to elevator servo- trim out servo pressure prior to disengaging A/P if TRIM lt. illum.

  11. Avionics • Touch Control Steering (TCS)- pilot’s cnt’l. wheel- allows manual mvm’t. of A/C during autopilot ops. w/o cancellation of any selected mode.- Interrupts A/P ops.- releasing button re-engages autopilot • When using F/D & flying manually- TCS matches command bars to existing pitch attitude or V/S mode can be reset w/ TCS

  12. Avionics • VNAV Computer/Controller- provides data inputs for alt. pre-select mode (ALTSEL), alt. alert, or vert. nav. Mode (VNAV).- data input w/ data sel. Switch and then setting w/ SET knob. • VNAV ops. Only when using NAV 1 w/ DME set to NAV 1 and locked on VORTAC • VNAV fcn. Only valid when going directly to or directly from a VOR/DME station

  13. Avionics • C-14 Compass System- pilot’s HSI and flight director and co-pilots RMI driven by the slaved gyro system. Components: • DG • Flux Detector • 2 mode selector switches • Remote compensator • Slaving indicator on HSI • 2 LH GYRO SLAVE switches- on left panel

  14. Avionics • Ctn. • 1 w/ AUTO and MAN • Other w/ LH/RH position Allow selection of auto (slaved) or manual (unslaved). In AUTO (for normal ops.)- compasses align @ 3 – 5 deg./sec. IN MAN.- HSI on co-pilot’s RMI card can be moves L or R @ 30 deg./min. by toggling the LH-RH sw. (slaving indicator on HSI goes away).

  15. Avionics • Ctn. • Co-pilot’s compass system- identical to pilots but drives co-pilot’s HSI and pilot’s RMI card • If DC fail- place BATT sw. in EMER. Restores pwr. To co-pilot’s HSI

  16. Avionics • Radio Altimeter- Optional- provides absolute altitude readout from 2,500 AGL to gnd. In 10 ft. incr. (5 ft. below 200 AGL) • Aux. output can be used to drive a rising runway bar on pilot’s ADI • A DH window is included on ADI to set DH

  17. Avionics • AOA system (optional)- Transmitter (conical sensor), flap position sensor, and indicator. • Indicator- computes AOA from transmitter and Flap sensor to provide readout. • Calibrated from 0 – 1.0 At 0 no lift produced • Red arc- beginning of low speed buffet to stall • Yellow- approaching critical AOA • Indices at .8 (low speed buffet), .6- [optimum app. speed- 1.3 V(SO) and V(X), and max. endurance], and .35 (max. range)

  18. Avionics • Airspeed Indicators- uncorrected pitot/static input • Mach. Input (same gauge,-different needle)- from Air Data Computer (ADC) • Built in ref. bug • Slots in dial @ 262 and 277 KIAS show red below 14,000 ft. and from14,000 to 28,000 ft. indicating V(MO) limits (@std. 9,500 lbs ZFW) • Mach limit of .705 abv. FL280- single red radial line

  19. Avionics • 2 IVSI- show vert. velocity from 0 – 6,000 ft.- springs and accelerometers used to reduce normal VSI lag.

  20. Avionics • Static Ports- • 2 per side- fwd. of cockpit windows • Dual pickups used to reduce sideslip effects • Co-pilot’s altimeter- barometric. • Due to low vibration in turbojets this instr. Has an elec. Motor w/ an eccentric shaft attached to a baro. Altimeter to ensure its accuracy- constantly vibrates it

  21. Avionics • Air Data Computer- electrically drives pilot’s altimeter and provides input to FD/AP system plus any optional equipment installed which require it. • Static Discharge Wicks- dissipate Precip. Static (P static) which reduces electrostatic noise- installed on all trailing edges.

  22. THE END

More Related