You can enter information about your trip so the GPSMAP 378/478can estimate information about your trip.To plan your route:1. Open the Route Review Page options menu.2. Highlight Plan Route, and press ENTER.Entering Speed and Fuel Flow for trip planning3. Enter the data for Speed and Fuel Flow. You also can enterthe date and time of your departure. Press QUIT to return tothe Route Review Page.NOTE: Fuel flow rates are measured in “units per hour.” Systemsetting changes for units of measure (statute, nautical or metric)do not affect the fuel flow measure. You should enter fuelflow rates based on information for your vehicle (such as theoperator’s manual or performance specifications) and make noteof the units of measure (gallons or liters).Using the Route Tab OptionsThe Route tab on the Main Menu shows all the routes currentlystored in memory, along with a descriptive name for each route.Highlight a route and press MENU to open the options menu. Fromhere you can activate the route, copy it, delete it, delete all routes,and create a new route. You can also set up the routes to manuallytransition to the next waypoint.Manually Transitioning to the Next WaypointFrom the Route tab option menu, highlight Set Up Routes andpress ENTER to set the route leg transition (or waypoint transition).Select Distance to enter a radius so that when you are within theentered distance, the GPSMAP 378/478 will lead you to the nextpoint on your route.When you select Manual, you can transition to the next waypointanytime while navigating a route. While you are navigating theroute, open the Active Route Page. Press MENU. Highlight NextRoute Waypoint and press ENTER to have the GPSMAP 378/478start routing you to the next point in your route.24 GPSMAP 378/478 Owner’s ManualBASIC OPERATION IN MARINE MODE > C REATING AND USING ROUTES
