The Strainstall 'StressAlert ll' system continuously measures hull stress using deck-mounted Long Baseline Strain Gauges and a bow accelerometer, and provides:

• Real-time displays of bending moments
• Alarms when unsafe levels of stress are experienced
• Detection of bow slamming
• Long-term monitor of fatigue during the vessel's lifetime
• Additional sensors (bow pressure, heave/pitch/roll) can be fitted to meet more advanced requirements
• It can be used as an aid to safe sea-keeping, and as a check on the calculations of the Loading Computer
• An output is available for connection to Voyage Data Recorders (VDR's) and provides valuable safety-related data for reference purposes

Strainstall designed the first practical Hull Stress Monitoring System, and 'StressAlert ll' is in use world-wide with major ship operators, installations having been approved by major certifying authorities (DNV, Lloyd's Register, ABS).