Why in news
On the second day of his visit to the U.S., Defence Minister Rajnath Singh interacted with senior leadership of American defence companies.
The round-table was organized by the U.S.-India Strategic Partnership Forum (USISPF).
The Defence Security Cooperation Agency (DSCA) notified Congress on the potential sale of anti-submarine warfare (ASW) sonobuoys to the Indian Navy
The sale includes AN/SSQ-53G, AN/SSQ-62F, and AN/SSQ-36 sonobuoys, along with related equipment, technical support, and services.
The estimated cost of the sale is $52.8 million.
India-U.S. Defence Industrial Cooperation
On Friday, India and the U.S. signed the Security of Supply Agreement (SOSA) to strengthen defence industrial cooperation.
The Indian Defence Ministry stated that reforms have encouraged many foreign Original Equipment Manufacturers (OEMs), including those from the U.S., to establish manufacturing units and joint ventures in India.
The planned co-production of GE414 aero-engines in India was highlighted as a key milestone in India-U.S. bilateral relations.
Sonobuoys
Sonobuoys are specialized devices used in anti-submarine warfare (ASW) to detect and track submarines underwater.
They are typically deployed from aircraft, helicopters, or ships and function as floating sensors that listen for underwater sounds.
Types of Sonobuoys:
Active Sonobuoys: Emit sound pulses (pings) into the water and listen for the echoes that bounce back from objects like submarines.
This helps in determining the distance and position of the target.
Passive Sonobuoys: Do not emit sound but instead listen for noises made by submarines, such as engine sounds or propeller noise, to detect their presence.
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