Friday, July 26, 2019

Explain about SART? Location of it? Functioning? Any indications where SART is kept?

 Explain about SART? Location of it? Functioning? Any indications where SART is kept?



As per SOLAS min 2 no required onboard.

-SART has been made of Fiber reinforced plastic which can bear the prolonged sunlight and stays
unaffected by the sea water or oil.
-It is capable of self-floating free of survival craft.
-International ORANGE in color.
-SART is mounted in a mounting bracket which in turn is fixed to the bulkhead of ship.
-The SART operates in the 9GHz frequency band (i.e. 9.2 to 9.5 GHz) and generates a series of response signals on being interrogated by any ordinary 9 GHz ship borne 3-cm X-band radar or suitable airborne radar.

-SARTs can be either portable for use on board ship or carrying to survival craft and/or permanently installed in the survival craft




-The SART is  activated manually so that it will thereafter respond when interrogated.


-When activated in a distress situation, a SART responds to radar interrogation by transmitting a signal which generates a line of 12 blips code on a radar screen outward from the sart position along its line of bearing.
-Displayed on the Radar-Plan Position Indicator (PPI), the spacing between each pair of dots will be 0.6 nautical mile.

-As the search craft approach as to within about 1 nautical mile of the SART, the blip dots will change into wide arcs, and even become complete circles as the SART is closed and become continually triggered.
-This is useful warning to the search craft to slow down.
-This distinctive and unique radar signal is easily recognized and is therefore much easier to spot than
a signal echo such as from a radar reflector.

-The SART also provides a visual or audible indication of its correct operation and will also inform
survivors when it is interrogated by radar.
-An audible beep will sound every 2 seconds when the SART is interrogated by a radar and every 12 seconds when no radar in sight.
-The SART should have sufficient battery capacity to operate in the standby condition for 96 hours followed by a minimum 8 hours of transmission while being interrogated by radar.


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