Anti-Capsize & Other Safety Systems
Anti-Capsize System
Heel and trim are permanently monitored at high frequency. In case of overtaking the defined thresholds, the computer activates the predetermined safety procedure:
action on the autopilot alarms;
release of the sheets according to the defined profile and the context; and
recording of the event
For example, when the boat sails upwind with autopilot, when heel exceeds a threshold defined by the user, the autopilot will luff up until heel decreases. The autopilot will then go back to its initial instruction.
Automatic Release of the Sheets from a Magic Trim Hydraulic Ram
This system manages the point of sail (upwind/downwind), the tack, and the configuration of sails.
Measurement of the following is performed by an external inertial motion unit:
Accurate boat speed and heading
Longitudinal acceleration
Vertical acceleration (lifting foils)
Three-axis angular accelerations (heave, sway, surge)
Three-axis angular speeds (roll, pitch, yaw)
Heel and trim angles
Latitude and longitude
Vertical positioning (lifting foils)
The load measurement in the rigging is a key element for the good management and conduct of a sailboat, especially on big multihulls. It is the starting point to determine and check loads applied to the boat under the influence of the wind, the sea and the way of sailing. The Magic Trim system uses various sensors and technologies to measure the strengths in static and dynamic conditions. These sensors are specially designed for the marine environment and perfectly adapted for the Air Yacht.
Management of Wind Gusts & the Resulting Safety Procedures
The wind data is permanently monitored. In case of passing the predetermined thresholds, the safety procedure is activated according to these presets, which results in:
Alarms
Change of instruction to the autopilot
Release of the sails
Recording of the event
Thresholds can be defined on the following data:
True wind speed absolute value
Apparent wind speed absolute value
True wind speed gradient
Shallow Depth Monitoring
The water depth thresholds are linked to a maximum speed. In case of a critical situation, the predefined safety procedure is activated:
Alarm
Release of the sails
Emergency stop of the boat under autopilot
Man-Overboard Management
This is an effective function that increases the chance of recovery of a man overboard.
Activate the MOB sources:
MOB button
MOB AIS beacon
This results in the following:
Alarm
Automatic release of the Jon Buoy
Release of the sails
Emergency stop of the boat with autopilot
Automatic display of the MOB page on the Control Centre and the display
Activation of the MOB function on the navigation system
Distress signal emission
Recording of the event
Collision Avoidance
This system calculates collision courses from the data delivered by the AIS. In the case of a critical situation, the computer starts the predefined safety procedure, according to the imminence of the danger:
Alarm
Foghorn
Navigation lights and projectors
Release of the sails according to the defined profile and the context
Action on the autopilot
Recording of the event
Accident Logging
A time-stamped recording of the accident noting all the variables of the behaviour of the boat is kept for 15 days – useful for both understanding and insurance.