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stability for interview
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draft
vertical dist. from keel to waterline
statutory freeboard
deckline to respective loadline
formula for manila rope
. C squared
BS = 3
C squared
SWL = 18
wire rope
BS = 2.5 C squared
.
2C squared
SWL = 6
center of bouyancy
point through which total bouyancy of the ship is considered to act
center of gravity
point through which total weight of the ship is considered to act
pitch
motion about the vessel's traverse axis
rolling
motion about the vessel's longitudinal axis
dead weight tonnage
total weight that the vessel is allow to carry
actual freeboard
deckline to waterline
LBP
length between perpendicular
dist. from stem intersects waterline to the axis of rudder stock
LOA
length over all
dist from extreme ends of stem and stern
moment
created by a force or weight moved through a dist.
metacenter
the highest point to which center of gravity may rise and still permit the vessel to have positive stability
hogging
keel will curve upwards
formula for condition of ship
.
FD + AD
FAm = 2
net tonnage
found by deducting from gross tonnage certain non earning spaces
gross tonnage
total of under deck tonnage
yaw
motion about the vessels vertical axis
sway
side to side linear motion of the ship
specific gravity formula
.
density of subs. in oz per cu. foot
SG of a subs. 1000 fresh h20
ulage
vertical dist. from above deck datum to surface of the liquid in tank
broken stowage
space between packages which remain unfilled
light draft
her draft when no cargo
loaded displacement
total weight of ship when fully loaded
breaking strength
weight applied to material just enough to destroy it
safe working load
weight applied to material for regular use without destroying it
drift
the estimated resultant of wind, current of tidal stream that will cause a change of position
search pattern
1. expanding square search pattern
2. sector search pattern
3. parallel track search pattern 2 ships
4. " " " " 3 ships
5. " " " " 4 ships
6. ship/aircraft coordinated search pattern
ICS
international code of signals
the set of code of signals consists of
26 alphabet flags
10 numerical pendants
3 substitute
1 answering pendant
40 flags all in all
unstable equilibrium
exists when G is above M
vessel does not tend to return to an erect position after being inclined, but for small angles, tends to cont. inclination or capsize
neutral equilibrium
G conside with M and no righting arm
displacement tonnage
actual weight of ship and all aboard her at any particular time
light displacement
weight of ship on light draft
density
mass per unit volume
breadth (beam)
maximum breath of the ship measure amidship to the outside of frame
rope is made up of 5
nylon
terylene
manila
sisal
coir
TPI
number of tons necessary to change the mean draft of a vessel by one inch
hydrostatics curves
curves based on the form of immersed portion of a vessel TPI, MTI, B and M
TCG
VCG
Traverse position of center of gravity
vertical center of gravity
stowage plan
an outline plan of a ships holds showing cargo disposition
stowage factor
the number of cubic feet of a certain merchandice necessary to weight a longton
stability
ablity of a vessel to return to its original condition after it has been disturbed by an outside force
chain leading
1. clock position
2. moderate/ tight/ very tight
3. up and down
4. across the bow
5. under the keel
datum
the probable position of search target which the expected effect of drift since the initial position
heel/ list
traverse angle of inclination of a vessel
heeling moment
the moment of tending to heel the vessel
1 ton - cu. ft.
100 cu. ft.
1 ton - cu. m
2.83 cu. m
trim
difference of draft aft and forward
sagging
keel will curve downwards
Author
victordathird
ID
329760
Card Set
stability for interview
Description
for interview
Updated
2017-05-09T13:04:02Z
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