BDOC NSS Exam (2)
MOB Immediate Actions - Answer--Execute rudder and engine orders
-1MC
-Flag Oscar
-Locate true winds and best course (Wind-Ship-Man)
-Determine recovery method
-Notify ships in vicinity via VHF
MOB Recovery Resources - Answer--Small boat: when ship is close to man but not exactly alongside
-J-Bar davit: lower a SAR swimmer to retrieve MOB
-Helicopters: SAR swimmer onboard (fastest rescue)
MOB Maneuvers - Answer-1- Anderson
2- Williamson
3- Race Track Turn
,4- Y-Backing
Anderson Turn - Answer--Full rudder and engines ahead flank/full
-Quick recovery and simplest to execute
Williamson Turn - Answer--Full rudder in direction of casualty and engines ahead full/flank, THEN after
deviation of orginal course by 60 degrees=hard rudder opposite side
-better for weather and reduced vis.
-SLOWER
Race Track Turn - Answer--Full rudder and engines, THEN when ship's heading is 15-20 degrees short of
reciprocal course=rudder amidships, THEN once stern passes MOB=rudder order to begin second turn to
get back on original course
Y-Backing Turn - Answer--Full rudder towards and all engines BACK full/flank, THEN once losing
headway=shift your rudder
Fixed Lights - Answer-vary from tall, high intensity coastal lights to battery-powered lanterns on single
wooden piles
Major Lights - Answer--A high intensity and reliable light exhibited from a fixed structure or marine site
Minor Lights - Answer--Usually displays a light of low to moderate intensity
-Established in harbors, along channels, rivers, and isolated locations
Directional Sector Lights - Answer-White in the channel and depending on IALA B or A--> red/right
green/left or green/right red/left
, Sector Lights - Answer--Green: turning points/ best water
-White: good water
-Red: Danger areas
Buoys - Answer--Mark Channels, indicate shoals and obstructions, and warn the mariner of dangers
-may be lighted
-may have sound
-require mooring to hold in position
Buoy Types - Answer-1- Lateral Marks
2- Isolated Danger Marks
3- Safe Water Marks
4- Special Marks
5- Information/ Regulatory Marks
Lateral Mark Buoys - Answer-Defines borders of channels and directions
-IALA B vs IALA A
Isolated Danger Mark Buoys - Answer-Marks isolated dangers/obstructions
-Color=black with red band(s)
-Shape=Pillar or Spar
-Topmark=Two vertical black spheres
-Light= Two white flashes
Safe Water Mark Buoys - Answer-Marks the centerline of the channel or landfall
MOB Immediate Actions - Answer--Execute rudder and engine orders
-1MC
-Flag Oscar
-Locate true winds and best course (Wind-Ship-Man)
-Determine recovery method
-Notify ships in vicinity via VHF
MOB Recovery Resources - Answer--Small boat: when ship is close to man but not exactly alongside
-J-Bar davit: lower a SAR swimmer to retrieve MOB
-Helicopters: SAR swimmer onboard (fastest rescue)
MOB Maneuvers - Answer-1- Anderson
2- Williamson
3- Race Track Turn
,4- Y-Backing
Anderson Turn - Answer--Full rudder and engines ahead flank/full
-Quick recovery and simplest to execute
Williamson Turn - Answer--Full rudder in direction of casualty and engines ahead full/flank, THEN after
deviation of orginal course by 60 degrees=hard rudder opposite side
-better for weather and reduced vis.
-SLOWER
Race Track Turn - Answer--Full rudder and engines, THEN when ship's heading is 15-20 degrees short of
reciprocal course=rudder amidships, THEN once stern passes MOB=rudder order to begin second turn to
get back on original course
Y-Backing Turn - Answer--Full rudder towards and all engines BACK full/flank, THEN once losing
headway=shift your rudder
Fixed Lights - Answer-vary from tall, high intensity coastal lights to battery-powered lanterns on single
wooden piles
Major Lights - Answer--A high intensity and reliable light exhibited from a fixed structure or marine site
Minor Lights - Answer--Usually displays a light of low to moderate intensity
-Established in harbors, along channels, rivers, and isolated locations
Directional Sector Lights - Answer-White in the channel and depending on IALA B or A--> red/right
green/left or green/right red/left
, Sector Lights - Answer--Green: turning points/ best water
-White: good water
-Red: Danger areas
Buoys - Answer--Mark Channels, indicate shoals and obstructions, and warn the mariner of dangers
-may be lighted
-may have sound
-require mooring to hold in position
Buoy Types - Answer-1- Lateral Marks
2- Isolated Danger Marks
3- Safe Water Marks
4- Special Marks
5- Information/ Regulatory Marks
Lateral Mark Buoys - Answer-Defines borders of channels and directions
-IALA B vs IALA A
Isolated Danger Mark Buoys - Answer-Marks isolated dangers/obstructions
-Color=black with red band(s)
-Shape=Pillar or Spar
-Topmark=Two vertical black spheres
-Light= Two white flashes
Safe Water Mark Buoys - Answer-Marks the centerline of the channel or landfall
