Chennai: Even as Defence Minister Manohar Parrikar claimed there were small unverifiable leads from the missing IAF aircraft AN-32, search and rescue operations failed to yield any results on Tuesday. “We have detected 4-5 pings, and are trying to verify whether these are real or false alarms,” media reports quoted Parrikar as having said in the Rajya Sabha. Meanwhile, the focus on the fifth day was on how to carry out the search at a depth of 3,500 metres.
Marred by rough seas and no exact location of where the aircraft went down, the search is being conducted by extrapolating the time of the crash and the only hope is to catch the signals emanating from the flight decoder recorder, which is feared to be under the sea at a depth of 3,500 metres. Sources are hoping this could be achieved by National Institute of Ocean Technology research vessel ‘Sagarnidhi’, as it has the most advanced sonar, multi-beam echo sounder. While the sonar of the Indian submarines can’t come handy at such a depth, it is learnt Sagarnidhi’s multi-beam echo sounder could travel up to 6,000 metres depth. Like other sonar systems, multi-beam systems emit sound waves in a fan shape beneath a ship’s hull. The amount of time taken for the sound waves to bounce off the seabed and return to a receiver is used to determine water depth.
27/07/16 C. Shivakumar/New Indian Express
To Read the News in full at Source, Click the Headline
Marred by rough seas and no exact location of where the aircraft went down, the search is being conducted by extrapolating the time of the crash and the only hope is to catch the signals emanating from the flight decoder recorder, which is feared to be under the sea at a depth of 3,500 metres. Sources are hoping this could be achieved by National Institute of Ocean Technology research vessel ‘Sagarnidhi’, as it has the most advanced sonar, multi-beam echo sounder. While the sonar of the Indian submarines can’t come handy at such a depth, it is learnt Sagarnidhi’s multi-beam echo sounder could travel up to 6,000 metres depth. Like other sonar systems, multi-beam systems emit sound waves in a fan shape beneath a ship’s hull. The amount of time taken for the sound waves to bounce off the seabed and return to a receiver is used to determine water depth.
27/07/16 C. Shivakumar/New Indian Express
0 comments:
Post a Comment