GMDSS & IAMSAR Vol. III (Master3000)

Question 1

GMDSSWhat are the three main search patterns?

Answer 1

For witnessed MOB:
* Expanding Square search - good over a small search area
* Sector Search -
How would you know / determine your search leg lengths?What are you searching for? Person? Liferaft?What are the weather conditions? Wave height, visibility?Look at table inside IAMSAR -“uncorrected sweep widths for merchant vessels”For unwitnessed MOB:
* Creeping line search - in collaberation with yachts tenders? While waiting for SAR helicopter / professional help

Question 2

GMDSSWhat are your actions in the event of a MOB?

Answer 2

• Turn towards casualty
• Mark the position (GPS MOB button on all equipment)
• Release MOB buoy / lifering with smoke
• Sound General Alarm / Sound OSCAR and Raise flag (3 long blasts)
• Make decision regarding manoeuvre (Williamson, Anderson Sharnov)
• Lookouts posted with binoculars + instructions to keep eyes on MOB
• Rescue boat team to must and brief
• Send out distress message

Question 3

GMDSSHow long will your reserve power sources last?

Answer 3

• Emergency generator 18 hours Batteries only 6 hours

* Both will power steering, bridge equipment, fire pump and bilge pumps etc

Question 4

GMDSSWhat would be an OK reading for your emergency GMDSS battery during your daily checks?

Answer 4

• 13.2V
• Hydrometer to check battery acid - PPE!
• Distilled water