Piper CHEROKEE ARCHER II Pilot Operating Handbook
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Piper CHEROKEE ARCHER II Pilot Operating Handbook

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  • Page 330 Garmin International, Inc. 1200 E. 151 Street Olathe, KS 66062 USA Telephone: 913-397-8200 www.garmin.com AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4...
  • Page 331 Paul Mast Added VNAV 07/27/2018 Garmin ODA STC Unit Administrator Erik Frisk Added PA-28-140 08/29/2018 Garmin ODA STC Unit Administrator Corrected Typographical Errors See Cover See Cover 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page i...
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  • Page 333: Table Of Contents

    VERTICAL NAVIGATION (VNAV) ...................... 4-3 GO AROUND ............................4-4 MANUAL PITCH TRIM WITH AUTOPILOT ENGAGED ..............4-4 LATERAL MODES ..........................4-5 HEADING MODE (HDG) ........................4-5 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page iii...
  • Page 334 Section 7 – System Description ................7-1 AFCS OVERVIEW ..........................7-1 AUTOPILOT CONTROL UNIT AND DISPLAY ..................7-4 PREFLIGHT TEST ..........................7-7 MESSAGES AND ANNUNCIATIONS ....................7-7 LIGHTING............................... 7-8 AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4 Page iv...

  • Page 335: Section 1 - General

    Operating procedures, techniques, etc., which may result in damage to equipment if not carefully followed. NOTE Operating procedures, techniques, etc., which is considered essential to emphasize. 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 1–1...

  • Page 336: Abbreviations And Terminology

    Garmin Servo Actuator AFCS heading mode Indicated Airspeed Instrument Landing System Interrupt KIAS Knots Indicated Airspeed Knot LNAV Lateral Navigation LNAV+V Lateral Navigation with Advisory Vertical Guidance AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4 Page 1–2...

  • Page 337: Installed Equipment Interfaces

    Is Navigator #1 interfaced to GFC 500?   VHF Nav Radio #1 Is VHF Nav Radio #1 interfaced to GFC 500?   VHF Nav Radio #2 Pitch Trim Servo 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 1–3...

  • Page 338: Installed Features Checklist

    Altitude Capture via Altitude Preselect   VHF Navigation Indicated Airspeed (IAS)   Vertical Navigation (VNAV) Approach Mode   GPS Approach Glidepath   VOR/LOC ILS Glideslope AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4 Page 1–4...

  • Page 339: Section 2 - Limitations

    The GFC 500 autopilot is approved for Category 1 precision approaches and non-precision approaches only. Autopilot Engagement Speed Minimum 65 KIAS (75 MPH) Maximum 140 KIAS (160 MPH) 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 2–1...
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  • Page 341: Section 3 - Emergency Procedures

    Do not attempt to re-engage the autopilot or use manual electric pitch trim until the cause of the malfunction has been corrected. 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 3–1...

  • Page 342: Autopilot Failure / Abnormal Disconnect

    Refer to Section 7, System Description for further information. ESP will be disabled by pressing and holding the AP DISC / TRIM INT button. Releasing the button will allow ESP to function. AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4 Page 3–2...

  • Page 343: Overspeed Protection (Maxspd)

    3. Autopilot .........RESELECT VERTICAL AND LATERAL MODES (if necessary) 4. Power ......................ADJUST as necessary NOTE Autopilot Underspeed Protection Mode provides a pitch down command to maintain 65 KIAS (75 MPH). 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 3–3...
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  • Page 345: Section 3A - Non-Normal Procedures

    3. NAV Key ..........................PRESS If on an instrument approach at the time the navigation signal is lost: 4. Missed Approach Procedure ..............EXECUTE (as applicable) 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 3–5...

  • Page 346: Loss Of Airspeed Data

    If on an instrument approach:  AP DISC / TRIM INT button ........PRESS, Continue the approach manually  Missed Approach Procedure ............EXECUTE (as applicable) AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4 Page 3–6...

  • Page 347: Heading Data Source Failure

    3. Manual Elevator Trim ..................RE-TRIM as required Electric pitch trim should be considered inoperative until the cause of the mistrim has been investigated and corrected. 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 3–7...
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  • Page 349: Section 4 - Normal Procedures

    In the event of unexpected autopilot behavior, press and holding the AP DISC / TRIM INT button will disconnect the autopilot and remove all power to the servos. 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 4–1...

  • Page 350: Vertical Modes

    ALT key is pressed. The altitude reference is displayed in the autopilot status box. The reference may be changed by +/- 200 FT using the UP / DN wheel. AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4 Page 4–2...

  • Page 351: Vertical Navigation (Vnav)

    ALTS will be the armed mode during the descent if the altitude preselect is set at or above the VNAV reference altitude, indicating that the autopilot / flight director will capture the altitude preselect altitude reference. 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 4–3...

  • Page 352: Go Around

    If TRIM UP message is displayed ............MANUALLY TRIM nose up If TRIM DOWN message is displayed ..........MANUALLY TRIM nose down AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4 Page 4–4...

  • Page 353: Lateral Modes

    VOR mode. The pilot must ensure that the current heading will result in a capture of the selected course. If the CDI is one dot or less from center, the autopilot will enter the capture mode when the NAV key is pressed. 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 4–5...

  • Page 354: Navigation (Gps)

    GPS mode. The pilot must ensure that the current heading will result in a capture of the selected course. If the CDI is one dot or less from center, the autopilot will enter the capture mode when the NAV key is pressed. AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4 Page 4–6...

  • Page 355: Approaches

    APR key is pressed. The glideslope cannot be captured until the localizer is captured. The autopilot can capture the glideslope from above or below the glideslope. 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 4–7...

  • Page 356: Loc (Gs Out)

    Set missed approach altitude in the altitude preselect. NOTE Pressing the GA button will not disconnect the autopilot. Select NAV or HDG mode to fly the missed approach procedure. AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4 Page 4–8...

  • Page 357: Gps Approach (Lpv, Lnav/Vnav, Lp+V, Or Lnav+V)

    Set missed approach altitude in the altitude preselect. NOTE Pressing the GA button will not disconnect the autopilot. Select NAV or HDG mode to fly the missed approach procedure. 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 4–9...
  • Page 358 Set missed approach altitude in the altitude preselect. NOTE Pressing the GA button will not disconnect the autopilot. Select NAV or HDG mode to fly the missed approach procedure. AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4 Page 4–10...

  • Page 359: Vor Approach

    Set missed approach altitude in the altitude preselect. NOTE Pressing the GA button will not disconnect the autopilot. Select NAV or HDG mode to fly the missed approach procedure. 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 4–11...

  • Page 360: Disabling Esp

    ESP can be disabled on the G5 attitude indicator with the following procedure. ESP will default to “Enabled” on the next power cycle. G5 Knob..........................PRESS 2. ESP ............................SELECT 3. G5 Knob ..........................PRESS AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4 Page 4–12...

  • Page 361: Section 5 - Performance

    SECTION 5 – PERFORMANCE No Change. 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 5–1...
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  • Page 363: Section 6 - Weight And Balance

    SECTION 6 – WEIGHT AND BALANCE No change to loading information. Refer to current weight and balance report and equipment list for changes to empty weight/moment and installed equipment. 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 6–1...
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  • Page 365: Section 7 - System Description

    Underspeed Protection mode at the minimum airspeed. Electronic Stability and Protection (ESP) — The GFC 500 will provide Electronic Stability and Protection when the autopilot is not engaged. 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 7–1...
  • Page 366 Display symbology implemented for ESP is illustrated in the following figures. AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4 Page 7–2...
  • Page 367 The opposite roll limit remains at the engagement limit. Lower Disengagement Limit Indication depicted at 30° after ESP activation Figure 7-2: Engagement Limit Indications Upon ESP Activation 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 7–3...

  • Page 368: Autopilot Control Unit And Display

    AUTOPILOT CONTROL UNIT AND DISPLAY Figure 7-3: GMC 507 Control Unit (Reference Only) Figure 7-4: G5 Display (Reference Only) AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4 Page 7–4...
  • Page 369 * ALTS arms automatically when PIT, VS, IAS, or GA is active. ** ALTV arms automatically if the VNAV Target Altitude is to be captured instead of the Selected Altitude. 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 7–5...
  • Page 370 The autopilot is capable of commanding the aircraft in the following ranges: Pitch 20° nose up to 15° nose down Roll ±30° AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4 Page 7–6...

  • Page 371: Preflight Test

    Elevator Trim Up – Autopilot is holding elevator nose up force. The pitch TRIM UP trim needs to be adjusted nose up. 190-02291-07 Rev. 4 AFMS – GFC 500 Autopilot in Piper PA-28 Series Page 7–7...

  • Page 372: Lighting

    When the aircraft’s dimming bus is selected off, or full dim, GMC 507 mode control panel lighting is controlled by integrated photocells which sense the ambient cockpit lighting. AFMS – GFC 500 Autopilot in Piper PA-28 Series 190-02291-07 Rev. 4...

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