Raymarine ST70 User Reference Manual

Also see for ST70 Instrument: Installation guide Operating guide User reference handbook Installation guide Operating guide

Contents

Raymarine ST70 User Reference Manual Manual pdf 40 page image

32 ST70 Pilot Controller Reference GuideThe default setting is apparent wind. If required, you can change this to true wind inUser Calibration. See Wind Selection on page 16.WindTrimIn Wind Vane mode the SmartPilot uses WindTrim to eliminate the effects ofturbulence and short term wind variations. This provides smooth and preciseperformance with minimal power consumption. You can adjust the wind response(WindTrim) level in User Calibration to control how quickly the SmartPilot respondsto changes in the wind direction. Higher wind trim settings will result in a pilot that ismore responsive to wind changes. See Wind Trim on page 16.Dodging an obstacle in Wind Vane modeIn Wind Vane mode you still have full control from the keypad. You can make adodge maneuver by using the course change buttons (-1, +1, -10 or +10) to selectthe desired course change.After you have avoided the hazard, you can cancel the dodge course change bymaking an equal course change in the opposite direction.Wind Shift warningIf the autopilot detects a wind shift of more than 15° it will sound the wind shiftwarning and display the WIND SHIFT message:• To cancel the warning, and retain the existing wind angle and new heading, pressCANCEL.• Alternatively, to cancel the warning and return to the previous heading:• adjust the locked wind angle using the -1, +1, -10 and +10 buttons.• press STANDBY to return to hand steering, steer onto the required heading,and press CANCEL to return to Wind Vane mode with the new wind angle.Using AutoTack in Wind Vane modeNote: If you use the AutoTack function in Wind Vane mode, make sure the wind vane has beencentered accurately.The SmartPilot has a built in automatic tack facility (AutoTack) that turns the boatthrough a specified angle (default is 100°) in the required direction.• To AutoTack to port: press the -1 and -10 buttons together.• To AutoTack to starboard: press the +1 and +10 buttons together.You can adjust the default AutoTack angle in User Calibration. See Auto Tack Angleon page 15.You can also use the menu button to select and execute the autotack option.When you Auto Tack in Wind Vane mode, the boat turns through the Auto Tackangle. The SmartPilot will then trim the heading to mirror the locked wind anglefrom the previous tack.