Furuno FEA-2107 Operator's Manual page 502

29. Steering With Yokogawa PT-500A
29.10 Using the Predictor
The Predictor is a tool for estimating own ship's future positions and behaviour, and it is available on the status bar.
Place the cursor on the text "Predictor" and then use left mouse button to toggle the predictor ON/OFF. The current
setting is shown in the mouse functions area. To set the time for the predictor, place the cursor on the time indication
next to Predictor, spin the thumbwheel to choose a time and then push the thumbwheel. The time from current
position to the last of the predicted position may be chosen by the between 30 and 180 seconds, in 30 second
intervals. The on-screen Predictor graphic consists of five pieces of own ships drawn in true scale to successive
future positions.
North Up TM
ECDIS only
The predictor is calculated using current:
Docking speed components:
Transversal bow speed
Transversal stern speed
Longitudinal center speed
Rate of turn
These components are assumed to be stable during the prediction period.
The predictor can be used in every steering-state, even when steering without the Trackpilot.
Predictor shows drift
29-24
UChart
Predictor in a turn