87Section 6GPS ReceiverReferenceVERTICAL NAVIGATION PROFILE VERTICAL SPEED REQUIREDDISTANCE TO TARGETTIME AND DISTANCETO PROFILETARGET ALTITUDEAND POSITIONAIRPORTCURRENT ALTITUDEAND POSITIONVertical NavigationThe vertical navigation feature allows you to create athree-dimensional profile that guides you from yourpresent position and altitude to a final (target) altitude at aspecified location. Once the profile is defined, messagealerts and additional data on the HSI Page will keep youinformed of your progress.To use the vertical navigation feature, your speedmust be greater than 35 knots and you must be navigat-ing to a GOTO destination or using a route.To create a vertical navigation profile:1. Select the Main Menu by pressing MENU twice.2. Select ‘Vertical Nav’ using the ARROW keypad andpress ENTER.3. With the ‘Target Altitude’ field highlighted, pressENTER. Enter the desired target altitude and pressENTER.4. With the altitude reference field (immediately to theright of ‘Target Altitude’) highlighted, press ENTER.Select ‘Above Wpt’ or ‘MSL’ (as desired) and pressENTER. ‘Above Wpt’ will use the altitude of adestination airport as stored in the internalJeppesen database. ‘MSL’ lets you set a specifictarget altitude for any waypoint category: airport,VOR, NDB, intersection or user waypoint.The Main Menu’s‘Vertical Nav’ optionallows you to define thetarget altitude and whereit should occur. Thedefault settings areintended to guide you topattern altitudes.Your target altitude canbe defined as height‘Above Wpt’ or ‘MSL’.‘Above Wpt’ onlyapplies to airports. Use‘MSL’ for all otherwaypoint types.
