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AeroVonics AV-20 Pilot's Manual

Multi-function display
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D-0014-0, AV-20 Pilots Guide
AV-20 / AV-20-S
Multi-Function Display
Part Number U-1001-0 / U-1002-0
Pilot's Guide
(D-0014-0, AV-20, PILOTS GUIDE, REV B)
AeroVonics LLC
12306 Menaul Blvd NE.
Albuquerque, New Mexico 87122
4/2/2018
Page 1 of 29
Revision B

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Summary of Contents for AeroVonics AV-20

  • Page 1 D-0014-0, AV-20 Pilots Guide AV-20 / AV-20-S Multi-Function Display Part Number U-1001-0 / U-1002-0 Pilot’s Guide (D-0014-0, AV-20, PILOTS GUIDE, REV B) AeroVonics LLC 12306 Menaul Blvd NE. Albuquerque, New Mexico 87122 4/2/2018 Page 1 of 29 Revision B...

  • Page 2: Table Of Contents

    D-0014-0, AV-20 Pilots Guide Document Revisions Revision Date Description of Change Author PDF Sig 9/20/2017 Initial Release 4/2/2018 Updated for initial NORSEE certification, latest Digitally signed by JDB UI for Software Release 1.0 Table of Contents 1. System Description ........................4 1.1.
  • Page 3 D-0014-0, AV-20 Pilots Guide 5.6.7. Setup – Miscellaneous Options...................25 5.6.8. Setup – AoA Limits ......................26 5.6.9. Setup – G Limits .........................26 5.6.10. Setup – Hard Calibration.....................26 6. Audio and Visual Alerts....................... 28 6.1. Alert Prioritization ......................28 6.2. Clearing Alerts ......................... 29...

  • Page 4: System Description

    The unit incorporates a full color sunlight readable display, bezel-mounted light sensor for automatic display brightness, and an internal battery for operation in the event of power loss. The AV-20-S connects to the pitot and static systems of the aircraft, while the AV-20 model does not.

  • Page 5: Angle Of Attack

    (positive or negative) represents the maximum value configured. G-Meter and associated alerting is available only on the AV-20-S model. G Load information is not for primary aircraft control and is provided for supplemental situational awareness only.

  • Page 6: Clock/Run Time

    12V and 24V aircraft. The timer can be reset by the pilot. The engine run timer is not maintained between power-cycles, and does not represent a HOBBS type function. The engine run timer is available in both the AV-20 and the AV- 20-S models.

  • Page 7: User Setup

    Note that the AV-20 also incorporates the identical battery but is not utilized for operation when external power is lost, only for clock keep-alive functionality.

  • Page 8: Model Functionality

    1.12. Model Functionality The AV-20 is available in two configurations:  The AV-20 model, which does not include internal inertial sensors or pitot-static sensors. Functions are limited to those indicated below.  The AV-20-S model, which includes the AV-20 base model functions, plus the features gained from the full sensor set.

  • Page 9: Operating Limits

    Maintenance & Operation. 3. Power-On Stabilization The AV-20-S model incorporates precision air data and inertial sensors that are temperature-sensitive. These sensors are thermally stabilized by an internal heater. During power-on, the heater warms the sensors to the operating temperature; thus, they require a few moments to stabilize.

  • Page 10: User Interface Overview

    D-0014-0, AV-20 Pilots Guide 4. User Interface Overview 4.1. User Interface Controls Controls for the AV-20 consist of three bezel-mounted momentary-push buttons. The functionality of the buttons changes based on the current mode. User interface components are as follows: View Button...

  • Page 11: Left & Right Push

    If no text appears in this area, no action is assigned to the BOTH command for this page. 4.5. Splash Screen The system splash screen is displayed on power-up. The unit model (AV-20 or AV- 20-S) is shown, along with the software version number. The unit also displays the splash screen momentarily on power-down. Shows Model...

  • Page 12: Screen Brightness

    D-0014-0, AV-20 Pilots Guide 4.6. Screen Brightness Pressing and holding the lower right button will display the screen brightness page. By default, the screen is set to auto brightness mode and will utilize the light detected by the photocell to set the screen brightness.

  • Page 13: Main

    D-0014-0, AV-20 Pilots Guide 5. Main Pages 5.1. Clock Combo Page The Clock Combo Page displays multiple items of information as shown below. The VIEW button sequences through available data in the upper field. Note that the screen layout and available data will vary based on model and connected sensors.

  • Page 14: Fe Time - Flight Time, Engine Time Page

    BOTH Clears Highlighted Field to zero Either timer can be independently set to zero by selecting it and clearing the value. Only the engine run time is available on the base AV-20 model, as airspeed measurements are not available. 4/2/2018...

  • Page 15: User Timer

    D-0014-0, AV-20 Pilots Guide 5.3. User Timer Pages Two identical user timers are available. Each operates independently of the other and each can be configured for counting up from zero or counting down from a user-set value. 5.3.1. Count-Up Mode In the power-on default state, each timer is a count-up timer.
  • Page 16 D-0014-0, AV-20 Pilots Guide TIMER SET MODE Currently highlighted field Left upper and lower will flash button increment or decrement the current field (Hours, Minutes, or Seconds) Right button increments Holding either flashing field to momentarily will clear next position...

  • Page 17: Mode Transition

    D-0014-0, AV-20 Pilots Guide 5.3.3. Mode Transition Once in the count-down mode, the timer can be changed back to a count-up timer by setting a value of zero. This can be done manually, or a shortcut can be used by entering the set mode and holding either of the left buttons down momentarily.

  • Page 18: Aoa/G Meter Page

    D-0014-0, AV-20 Pilots Guide 5.4. AOA/G Meter Page The AoA/G Meter Page has three view modes:  Large AoA Display  Large G-Meter Display  Dual Graph Mode 5.4.1. Large AoA Display Mode The Large AoA Display mode shows a highly visible indication of the current AoA, scaled by the configured upper and lower AoA limits (calibration points).

  • Page 19: Large G-Meter Display Mode

    D-0014-0, AV-20 Pilots Guide 5.4.1. Large G-Meter Display Mode The Large G-Meter Display Mode shows an easily readable indication of the current G load, scaled by both the configured upper and lower G limits. Both positive and negative values are displayed on the same graph, making the visible indicator an “absolute”...

  • Page 20: Dual Graph Mode

    D-0014-0, AV-20 Pilots Guide 5.4.2. Dual Graph Mode The dual graph mode is primarily utilized for determining the best upper and lower AoA calibration points and can be helpful for fine-tuning those thresholds. The left side of the display shows the current G load, along with the peaks experienced during the current flight.

  • Page 21: Attitude Page

    D-0014-0, AV-20 Pilots Guide 5.5. Attitude Page The Attitude Page provides a small thumbnail presentation of roll and pitch, with an AoA overlay on the right side of the display. The PSYNC will set the current pitch angle to indicate as zero pitch, and can be used to trim out pitch offsets relative to other equipment on the aircraft.

  • Page 22: Setup

    D-0014-0, AV-20 Pilots Guide 5.6. Setup Pages The Setup Pages allow an assortment of options to be configured by the pilot. Note that some options are not available during flight and will be disabled if airspeed or ground speed is above 40 Kts. Disabled options will be shown in gray and cannot be selected.

  • Page 23: Setup - System Info

    D-0014-0, AV-20 Pilots Guide 5.6.2. Setup – System Info System information can be viewed via the setup menu. SETUP SYSTEM INFO 5.6.3. Setup - Page Enable The Page Enable allows each function / page of the unit to be individually enabled or disabled.

  • Page 24: Setup Audio Alerts

    D-0014-0, AV-20 Pilots Guide 5.6.4. Setup – Audio Alerts Audio alerts can be individually enabled or disabled. When disabled, the visual alert will still appear, but no aural alert will be generated. (See Alerts section of this document for more details on the alerting feature.)

  • Page 25: Setup - Miscellaneous Options

    D-0014-0, AV-20 Pilots Guide SETUP OAT TRIM Offset to be added to measured value Adjust offset up or down Corrected value shown 5.6.7. Setup – Miscellaneous Options The Misc Options menu allows for miscellaneous options to be set as follows:...

  • Page 26: Setup - Aoa Limits

    D-0014-0, AV-20 Pilots Guide 5.6.8. Setup – AoA Limits AoA Limit / calibration points allow the upper and lower angles for display to be set. The upper angle represents the angle just prior to aircraft stall, and corresponds to the top red bar on the AoA indicator. The lower angle represents the normal cruise angle, and correlates to the bottom-most AoA bar.
  • Page 27 D-0014-0, AV-20 Pilots Guide The Hard Calibration function re-zeros the internal inertial sensors and may be required from time to time. Refer to the Instructions for Continued Maintenance & Operation in the Installation Manual for criteria on when to perform a Hard Calibration.

  • Page 28: Audio And Visual Alerts

    D-0014-0, AV-20 Pilots Guide 6. Audio and Visual Alerts Audio and visual alerts are generated under various limit conditions. A visual alert appears as a colored annunciator that is displayed in the upper left corner of the screen, regardless of the unit’s mode or currently displayed page. Aural alerts are implemented via the audio output and require that the unit be interfaced to the aircraft audio panel.

  • Page 29: Clearing Alerts

    D-0014-0, AV-20 Pilots Guide ACTIVE ALERT Visual Indicator Clears alert and mutes audio 6.2. Clearing Alerts When an alert condition is present, pressing the VIEW button will clear the visual alert and mute the associated audio. If there are multiple alerts occurring simultaneously, clearing one alert will then allow the lower-priority alert to be displayed.

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