GMDSS & IAMSAR Vol. III Flashcards

1
Q

GMDSS

What are the three main search patterns?

A

For witnessed MOB:

  1. Expanding Square search - good over a small search area
  2. 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:

  1. Creeping line search - in collaberation with yachts tenders? While waiting for SAR helicopter / professional help
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2
Q

GMDSS

What are your actions in the event of a MOB?

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

GMDSS
How long will your reserve power sources last?

A
  • Emergency generator 18 hours
  • Batteries only 6 hours
    • Both will power steering, bridge equipment, fire pump and bilge pumps etc
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4
Q

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

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