EXAM2 Flashcards
Controllable forces
Propeller rudder mooring lines anchors tugs bow thruster/apu
Uncontrollable forces
Sea
current/tides
water depth
wind
1 through 6 name the mooring lines
- bow
- forward bow spring
- after bow spring
- forward quarter spring
- after quarter spring
- stern
controllable pitch propellers are found on
gas turbine ships
fixed pitch propellers are found on
STEAM ships
Line Handling commands: HEAVE AROUND
take off the brakes
Line Handling commands: AVAST HEAVING
stop heaving
Line Handling commands: HOLD
take additional turns of line
Line Handling commands: CHECK
take turns to take strain on a line, check ships movement
Line Handling commands: DOUBLE UP
run out one or more bights and secure the lines
Line Handling commands: SINGLE UP
Take in all additional parts, leave a single line at each station
Line Handling commands: TAKE IN
Heave in on the line to take in the slack
Shallow water effects on ships
bank cushion
bank suction
sinking
pounding
Pivot point of a ship in different situations
usually located at 1/3 the length of the ship from the bow (just behind the bridge) if ships in reverse from the stern
COLORS OF ANCHOR CHAIN: Red
15 fathoms
COLORS OF ANCHOR CHAIN: white
30 fathoms
COLORS OF ANCHOR CHAIN: blue
45 fathoms
COLORS OF ANCHOR CHAIN: red
60 fathoms
COLORS OF ANCHOR CHAIN: next to the last shot
yellow
COLORS OF ANCHOR CHAIN: last shot
red
Forces which affect location of the Pivot Point
- Headway or Sternway
- Ship’s Speed
- Anchors
- Mooring Lines
- Tugs
o Rudder cannot be used to effectively steer ship
backwards
How many feet are in a shot
90
3 types of deck and pier fittings
bitt
cleat
bollard
How many kts of current is 30 kts of wind?
1 kt of current
Different material conditions of readiness:
• X-Ray =
Minimal closure
Different material conditions of readiness:
• Yoke =
Inport; Increased closure
Different material conditions of readiness:
• Zebra =
Full closure; GQ
Different material conditions of readiness:
• Circle William =
Ventalation Control
Know what the legal documents on board ship are
o Three legal documents aboard ship • Deck log (on bridge: QMOW) • Bell log (each shaft: MMOW) • Engineering Log (in main control: EOOW) o One electronic document • VMS data log
Great Circle route
-Shortest distance in between two points on the earth is a great circle.
MOVREP (Movement Report)
Report on ETA, ETD, Track, Operational Details, PIM
OTSR
- Optimum Track Ship Routing (OTSR)
- Hurricane and heavy weather avoidance
- Put out by METOCS
- Sent out every morning at 0800 Local.
o Advance and transfer problem
Angle of Turn=
The amount of rudder applied directly affects advance and transfer
• T-AO = Oilers
Henry J. Kaiser Class
• Fuel for Ships & Aircraft
• 180,000 barrels of fuel oil
• Very little dry/cold stores
T-AE = Ammo
- Kilauea Class
* Operated by MSC
T-AFS = Combat stores
- Mars & Sirius Class
- Provide Stores (Dry, Chilled & Frozen), Repair Parts, Mail and Fuel
- Operated by MSC
• T-AOE = Fast Combat support
- Supply Class
- Capable of maintaining CVBG Speed
- All-Purpose Supply Ships
- Stores
- Ammunition
- Fuel
white/green cross hard hats
safety observer
Yellow hard hats
rig captain
blue hard hats
riggers/line handlers
red hard hats
line throwing gun or bolo
STREAM
- Standard Tensioned REplenishment Alongside Method
- Uses a tensioned spanwire to support the cargo trolley or the fueling hose from the delivery ship to the receiving ship
LOGREQ
- Logistics request and what goes into it
- 5-7 Days Prior
- Receiving ship submits a LOGREQ
- LOGREQ (Logistics Request)
- Requests stores, fuel, parts
LOGREQ REPLY
- Name of delivery ship
- Rendezvous location and time
- Breakdown of supplies to be transferred
- Expected R CORPEN/SPEED
IDEAL SEPARATION
- Receiving ship returns all lines and rigging in an orderly fashion.
- Delivery ship returns phone and distance line.
- Receiving ship prepares breakaway song.
know the different colors for phone line:
“GO RUB YOUR BELLY WITH GREASE” in 20 yrd increments 140-160
Venturi Effect
Pressure differenctial caused by different flow of water amidships and at the bow and stern
admidships becomes a suction area.
remember the picture
• Swing Circle:
A circle drawn from the actual anchor location with a radius equal to the length of the anchor chain veered plus the total length of the ship
• Drag Circle:
A circle drawn from the actual anchor location with a radius equal to the length of the anchor chain veered plus the distance from the hawespipe to the pelorus
Calculate shots needed for certain depth
- Each shot is 15 fathoms (15x6 = 90 ft)
- How much anchor?
- 5 to 7 times the depth
Order in which you launch AAVs
- 1-2 ft of water at sill
* Staboard, center, port
Order in which you recover AAVS
- Est depth at sill = 4ft
* Port, Starboard, center
When Anchoring is dragging what do you do?
Dragging Anchor • Ship is outside the drag circle •Causes: • Heavy Weather, Rocks •Options • Veer out more chain • Steam on the Anchor • 2nd Anchor • Get Underway
