User manual ABACUS EZ-GPS VERSION 4

[. . . ] EZ-GPS v4 Users Guide EZ-GPS V4 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Map Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Aviation Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 The OBS Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] At the bottom of each page is a menu that gives you the choice of showing the airport on the map or setting a waypoint at the airport or a specific runway. Use the ¡ and ¢ cursor keys to scroll through these menu choices. The second page, labeled Plan, shows a diagram plan of the airport runway system. Waypoints can set for individual runways. The current runway is highlighted in blue and the selected approach is identified in red, both on the runway itself and in the runway identifier listed in upper left corner of the display. Use the £ and ¤ cursor keys to scroll through the runways. The EZ-GPS V4 can provide autopilot guidance for a runway approach. See the Autopilot section later in this manual and the Runway Approaches appendix at the end of this manual. 14 The third page, labeled Rwy details the airport runways. The last page shows any ILS approaches available at the airport. The ILS page of the airport information display has the option to show an additional display about the selected ILS. The next illustration shows the ILS information display. 15 A waypoint can be set on an ILS approach. If the current waypoint is an ILS approach and GPS route hold is enabled, the EZ-GPS V4 will tune the NAV1 radio and turn autopilot guidance over to the autopilot approach hold function. See the Autopilot section later in this manual. Routes And Waypoints A waypoint is a feature such as a VOR, NDB, or intersection that you choose as a point to navigate your aircraft towards. A route is a series of waypoints, each waypoint representing a leg of the route. As you create waypoints, they are connected together in the order that you add them to create a route. It is also possible to insert a waypoint into a route as described later in this section. Waypoints can be established in a number of ways. You can use the FIND key to identify a feature and then choose Create Waypoint on its information page. You can scroll the cursor on the map display to a feature, display its information page by pressing the ENT key, and create a waypoint. User Waypoints These methods create waypoints from established navigation features. You can also create your own waypoints anywhere on the map. Simply scroll the cursor to where you want to create a waypoint and press the ENT key. If no feature is displayed at that location, the Create Waypoint menu will appear. 16 The first menu choice will create a waypoint at the cursor position. Press the ENT key, the waypoint will be established, and a waypoint information page will be displayed as shown in the following illustration. You can create a waypoint at a specific latitude and longitude position w the second menu selection in ith the Create Waypoint menu: Entered Position. This selection will display the Enter Position screen allowing you to enter the coordinates of the waypoint. 17 Use the £ and ¤ scroll keys to choose from Latitude, Longitude, and Ok. When either Latitude or Longitude is highlighted, press the ENT key to enter edit mode and establish a value for that item. [. . . ] Note that the turn radius is independent of aircraft mass. When the radius of the arc that connects the current course line to new course line equals the turn radius of the aircraft at its current speed, the EZ-GPS V4 initiates the course change. Velocity is the current speed of the aircraft. If the autopilot changes heading at a larger bank angle, the aircraft will undershoot the new course line, completing the course change earlier the EZ-GPS V4 calculated that it would. [. . . ]