AST 473 Cessna Citation II Basic Avionics and Flight Instrumentation (UNs 210 - PowerPoint PPT Presentation

About This Presentation
Title:

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

Description:

AST 473 Cessna Citation II Basic Avionics and Flight Instrumentation (UNs 210 626) Dr. Barnhart Avionics & Flight Instrumentation Important note: Avionics vary ... – PowerPoint PPT presentation

Number of Views:190
Avg rating:3.0/5.0
Slides: 23
Provided by: isuIndsta
Learn more at: https://isu.indstate.edu
Category:

less

Transcript and Presenter's Notes

Title: AST 473 Cessna Citation II Basic Avionics and Flight Instrumentation (UNs 210


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
  • FSIs 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 RMIs, ADF, DME
  • Autoflight system (altitude pre-select, alt.
    alert, alt. reporting, and vert. nav.)
  • Weather Radar

4
Avionics
  • Pilots Flight Instruments
  • ADI (5 inch, Dual-cue flight director, 12
    annunciators for flt. Director modes)- displays
    AOB, G/S, TB, Loc, Radio alt)
  • HSI
  • RMI (w/ ADF)
  • Altimeter- driven by Air Data Computer (ADC)

5
Avionics
  • Co-Pilots 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
  • Pilots ADI/HSI
  • Air Data Computer
  • Autopilot controller
  • Vert. Nav. System- alt. alerter, Touch Cntl
    Steering (TCS), rate gyro, autopilot servos

7
Avionics
  • Flt. Guidance System- operates via the pilots
    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-pilots 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)- pilots cntl.
    wheel- allows manual mvmt. 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- pilots 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 _at_ 3 5 deg./sec. IN MAN.- HSI on
    co-pilots RMI card can be moves L or R _at_ 30
    deg./min. by toggling the LH-RH sw. (slaving
    indicator on HSI goes away).

15
Avionics
  • Ctn.
  • Co-pilots compass system- identical to pilots
    but drives co-pilots HSI and pilots RMI card
  • If DC fail- place BATT sw. in EMER. Restores pwr.
    To co-pilots 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 pilots 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 _at_ 262 and 277 KIAS show red below
    14,000 ft. and from14,000 to 28,000 ft.
    indicating V(MO) limits (_at_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-pilots 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 pilots
    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
Write a Comment
User Comments (0)
About PowerShow.com