Satellite imagery from March 19 shows one of India’s latest military machines—the multi-mission P-8I maritime patrol aircraft.

The twin-engine planes are variants of the Boeing’s P-8A Poseidon, originally built for the U.S. Navy. As seen in imagery collected by satellite firm Astrium, the aircraft are parked at the Indian naval air station INS Rajali in the southern state of Tamil Nadu.

The P-8Is support various missions for the Indian Navy: including anti-submarine warfare, anti-surface warfare, maritime patrol as well as intelligence, surveillance and reconnaissance missions.

The aircraft will replace India’s ageing fleet of Soviet-era Tupolev Tu-142s, which are also deployed to INS Rajali and subordinate to India’s Western Naval Command.

Earlier this month, Boeing delivered the fourth P-8I to India on schedule, fulfilling the first half of a contract for eight aircraft signed back in January 2009. The U.S. plans to deliver the remaining aircraft by the end of 2015.

The imagery shows the completion of an additional apron in February, as well as new construction of four additional shelters. The shelters will probably support the basing of the P-8I—allowing the aircraft to monitor key, strategic locations.

With a maximum range of more than 1,300 miles, the P-8I can easily reach the Andaman and Nicobar Islands, India’s forward position in the Bay of Bengal. In August 2013, the patrol plane IN 321 made its first flight to naval air station INS Utkrosh based on the island chain.