Furuno GP-150 Operator's Manual page 40

5. STARTING FOR DESTINATION
4) Press to shift the cursor to the Trial
Speed line.
5) Press or to select Auto or Man.
Auto uses ship's average speed to
calculate time-to-go.
6) If you selected Man, enter speed.
7) Press the NU/CU ENT key.
The range, bearing and time-to-go between
two points appear on the display. If data
entered is wrong or insufficient the buzzer
sounds and the message "INCOMPLETE
DATA" appears. If the data contains error,
and all nines appear as the calculation
results.
8) Press the MENU ESC key.
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