X2.4 OPERATING MODE INDICATIONAND COURSE DISPLAYl-he operating mode of the autopilot is indicatedby a flashing red LED, or a flashing prefix letter onthe course display as summarised below:-OPERATING MODE LED OR DISPLAY PREFIXFLASHING CODETYPICAL DISPLAYS-AND BYAutopilot switched on but 4 I Inot engagedAUTOAutopilot engaged to steercompass heading.MANUALtfand held control power 1BBHHMBBsteering in operation.VANEAutopilot engaged toriaintain apparent windzngle.Vane mode is also confirmed by a single beep tone emitted from all control units every 30 seconds.NAVIGATIONAutopilot supervised byNavigation Interface.I I I I I I ISECONDS 1 2 3 4 5 6 q ON [7OFF\fane Mode Average Course DisplayWhen in ‘Vane’ mode the displayed course isaveraged over 20 seconds so that significantcourse changes due to changing winddirection are easily observed.At 15 second intervals the course displayflashes on and off for eight seconds during which. -“:-A ,A,. -.,.-.r-no r-n! lrca ctaard I lnr+Prwindvane is displayed. This allows the effects ofwind shifts to be monitored and provides valuablenavigation information. The average coursecalculation is reset whenever a course alterationis made or the autopilot is switched out of ‘Vane’mode. ..- ~-,~