The squat effect is the hydrodynamic phenomenon by which a vessel moving quickly through shallow water creates an area of lowered pressure that causes the ship to be closer to the seabed than would otherwise be expected. This phenomenon is caused when water that should normally flow under the hull encounters resistance due to the close proximity of the hull to the seabed. This causes the water to move faster, creating a low-pressure area with lowered water level surface
WIG craft move at high speed. to distinguish from distance
Air cushioned vessel r susceptible to wind effect.
brendon n kamlesh
1) Inform Master.
2) Inform E/R.Get engines ready for manoeuvering.
3)obsrve visually and make a note of all the traffic in sight,
4)switch on ARPA and commence plottng.
5)Switch on navigational lights.
6) change over to hand sterering,
7) switch on the other stering motor,
8) post double lookouts, one on the bridge wing, other on forecastle.
9)try out pneumatic wistle and electric klaxon and the manual foghorn, by giving a very short blast on each, try out automatic fog signal unit,
10) stop all noises on decks so that the fog signals of other vessels would not get drowned in the noise ,,
11) keep open the outer doors of the wheel house so that the fog signals of other ships may be heared, even if they are very faint,
12) commence sounding fog signal before entering into the fog.
13) reduce to safe speed before entering fog.
14)restrict hold ventilation.
15) record all the happnings in bridge record book.
inform master n engine room
post look outs
switch on n operate radar
switch on nav lights
activate sound signals
proceed at safe speed
brendon n kamlesh
inform to master, stop all noisy work, switch on the navigational lights, one pro longed blast in interval not more than 2 min
inform to master
inform to engine room keep the engine raedy to manouvere and in safe speed
start sounding the signal as per ror
stop all noisy work like chipping
switch on all navigation lights
keep the bridge wing door open
continuos observation of radar and arpa mUST
keep plotting the position by all available means
if it idicates the presence of any other vessel,acess the suitation and take the action immidiately in ample time
Garboard strake is the first horizontal wooden strip laid next to the keel of a wooden ship
sheer strake is the longitudinal upward curwature of the deck, gunwale and lines of vsl as when viewed from the side
MFAG: Medical First Aid Guide
It comes as a part of the supplement with the IMDG code. And its a quick refrence guide with regards to first aid that should be given to a person , incase of him involved in an accident regarding different classes of Dangerous cargoes
Thermal protective aid
provided for all persons without immersion suits
brendon n kamlesh
TPA-waterproof material, thermal conductance not more than 7800w/m2k, -30c to +20c
rule:5 every vsl shall at all times maintan a proper lookout by sight and hearing as well as by all available means approriate in the prevailling circumstances and conditions so as to make full appraisal of the situation and of the risk of collision.
Every vessel shall at all time maintain a proper lookout by sight,hearing as well as all available means appropriate in the prevailing circumstances and conditions so as to make a full appraisal of the situation and of the risk of collision
The procedure which we use to test launch lifeboats is:
• remove gripes/lashing wires
• no one boards the boat
• launch boat to water, doing brake tests on the way down
• crew go down embarkation ladder or accommodation ladder and board boat
• boat is taken away and engine/steering etc checked
• boat returned and hooked on
• boat lifted about 2 metres above water
• self-release wire tested from inside the boat and boat landed back in water
• if necessary, boat lifted again about one metre above water and quick release mechanism tested
• all crew disembark and climb up ladder
• boat retrieved with no one inside
• boat secured