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INDEX AvMap A2 ADAHRS 1. System Overview 4 2. System Operation 5 3. System Installation 7 4. System Calibration 10 5. Specifications 14 DISCLAIMER & WARNINGS This product is not TSO-certified and have received neither EASA nor FAA approval. This product is not intended for installation in type-certificated aircraft and is not a substitute for on-board instruments. Avoid installing the product near heat sources or ensure adequate cooling is provided.
AvMap A2 ADAHRS 1. System Overview AvMap A2 ADAHRS extends the functionality of the EKP V Aeronautical Navigator and turns it into AvMap EFIS (Electronic Flight Information System), a centralized display for both navigation and primary flight information.
AvMap A2 ADAHRS 2. System Operation When the A2 module is connected to the EKP V a new MODE becomes available: Primary Flight Display Mode (PFD). This mode is activated by pushing MODE button and then selecting Primary Flight Display. Note: Push MODE repeatedly until the desired mode is selected, the unit will automatically switch to the new mode after a short time. PFD screen The PFD screen show the primary flight information using a digital presentation.
AvMap A2 ADAHRS • Altimeter and terrain awareness: the altimeter tape includes a TAWS (Terrain Awareness Warning System) bar and terrain depiction (In red). Note: See AvMap EKP V User manual for more details on the TAWS feature. • HSI Source: if no valid magnetic compass data is available (i.e. compass not yet calibrated), the HSI display is based on GPS “Course over Ground” and the HSI source flag shows “GPS”.
AvMap A2 ADAHRS List of available reference values Figure 3 V-speed values (control the white/green/yellow and red arcs in the airspeed indicator on Figure 1 on page 5) Vne Never to Exceed speed Vno Maximum cruise speed Vso Stall speed with flaps & landing gear deployed Vfe Maximum flaps extended speed Vs1 Stall speed with flaps & landing gear retracted 3. System Installation The AvMap EFIS installation is divided in the following steps: 1.
AvMap A2 ADAHRS Orientation It is suggested to install the A2 aligned with the aircraft longitudinal axis, as it simplifies the attitude calibration process. The A2 can be installed in any orientation, whereafter the proper attitude calibration procedure needs to be executed after first installation (see Chapter 4 AvMap EFIS Calibration, Full Attitude Calibration). Three installation scenarios are possible: Scenario A.
AvMap A2 ADAHRS Connection to the pitot-static system In order to display accurate speed and altitude data the A2 needs to be connected to the aircraft pitot-static system. First of all remove the two caps protecting the STATIC and PITOT ports. Installation along with other mechanical or digital altimeters and airspeed indicators is supported by mean of a T coupler (not included in the A2 box). Connect the pitot line to the port labeled PITOT and the static line to the port labeled STATIC.
AvMap A2 ADAHRS 4. System Calibration Overview The purpose of AvMap EFIS calibration procedure is to properly setup the system and to adapt it to the installation environment. There are two different types of calibration procedures: 1. Attitude calibration: compensates for non-standard installation attitude (required for scenario B and C mentioned in Chapter 3). 2.
AvMap A2 ADAHRS To access the step-by-step procedure select MENU > TOOLS > EFIS > Full Attitude Calibration. 1. Select if the maneuver will be pitch up or down. For tricycle aircraft the pitch up maneuver can be performed by pushing the tail (pitch up), while taildraggers will execute a pitch down maneuver by raising the tail. 2. Reset A2 ADAHRS calibration data; select Start. Wait until the reset phase is completed. 3.
AvMap A2 ADAHRS Compass Calibration and Test flight The purpose of this procedure is to compensate magnetic disturbances the A2 is subject to, due to aircraft metal structures and electromagnetic components. These disturbances, if not compensated, could alter the heading value provided by the system. For this reason the compass indicator is always marked as out of order (i.e. crossed) before the Compass Calibration procedure is executed.
AvMap A2 ADAHRS To start the guided procedure select MENU > TOOLS > EFIS > Compass Calibration. After starting the procedure the screen switches to Primary Flight Display mode, where a flight director (i.e. magenta box) shows the maneuvers to perform. Follow the magenta box until the procedure is finished. Assuming the calibration is started with the aircraft heading North, the steps required are: 1. Maintaining heading 000° execute: pitch up + 20°, back to straight flight and then pitch down -20° 2.
AvMap A2 ADAHRS 5. Specifications AvMap EFIS features • • • • • Airspeed and Altitude from pitot-static system Attitude, side slip and heading information Integration of TAWS into the PFD with AGL Altitude indication Wind indicator with wind components Clear HSI display linked with EKP V flight planning function A2 ADAHRS specifications • • • • • • • • • • • • Dimensions (mm) 70 x 60 x 35 / (in) 2.76” x2.36” x 1.
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