[CA] [CA11] How Much "Wandering" is Acceptable on EV150

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum GoodChance,

Unlike Auto mode, which is designed to maintain a specific heading, Track Mode will attempt to maintain the vessel within a corridor extending either side of the course line (Cross Track Error (XTE)). The width of this corridor will be based upon the autopilots Response Level setting. Having a properly functioning rudder reference transducer can also aid in the operation of this feature. As the function of the autopilot is to keep the vessel within aforementioned corridor, it is normal for the track to appear as an elongated S.

1) How close (number of degrees) are the Heading and COG data items when operating the autopilot at planing speeds in Auto (not Track) mode.
2) What is the autopilot's Response Level set to?
3) Has a rudder reference transducer been installed and interfaced to the ACU?
4) Is the system equipped to sense speed through water? If so, please configure the MFD to display the Speed data item, SOG data item, and XTE data item. When the symptom is observed, please respond with the observed values for these data items.
5) When operating in track mode over a 5 minute period what is the largest XTE observed after the autopilot has steadied the vessel onto the course?
6) Change the autopilot's Speed Input (MENU->SET-UP->AUTOPILOT CALIBRATION->VESSEL SETTINGS->SPEED INPUT) to SOG and then operate the autopilot in track mode at the same speed in which the symptoms were duplicated in step 4. When operating in track mode over a 5 minute period what is the largest XTE observed after the autopilot has steadied the vessel onto the course?