carried out under BrahMos project of the Defence Research and Development Organisation (DRDO), under which the missile was launched with an indigenous booster. The missile was launched from a land-based facility in Odisha. This is the second test-firing of the extended range version of the missile which has an indigenously developed airframe and booster. Submarine-launched variant The submarine-launched variant of Brahmos was test fired successfully for the first time from a submerged pontoon near Visakhapatnam at the coast of Bay of Bengal on 20 March 2013. This was the first vertical launch of an Indian supersonic missile from a submerged platform. The missile can be launched from a depth of . In late January 2016, Russia confirmed that future Indian-made submarines would be armed with smaller version of the missile that could fit inside a torpedo tube. Air-launched variant BrahMos-A The BrahMos-A is a modified air-launched variant of the missile with a range of 500 km which can be launched from a Sukhoi Su-30MKI as a standoff weapon. To reduce the missile's weight to 2.55 tons, many modifications were made like using a smaller booster, adding fins for airborne stability after launch, and relocating the connector. It can be released from the height of 500 to 14,000 metres (1,640 to 46,000 ft). After release, the missile free falls for 100–150 metres, then goes into a cruise phase at 14,000 metres and finally the terminal phase at 15 metres. BrahMos Aerospace planned to deliver the missile to the IAF in 2015, where it is expected to arm at least three squadrons. A Su-30MKI is able to only carry one BrahMos missile. The missile was also planned to arm the Indian Navy's Ilyushin Il-38 and Tupolev Tu-142 maritime patrol and anti-submarine aircraft with 6 missiles per aircraft, but this could not be made possible due to insufficient ground clearance of the IL-38, high cost of modifying the Tu-142 and the questionable benefits of modifying an ageing fleet. The air-launched version for the Indian Air Force was ready for testing in 2008. An expert committee from the DRDO and the Indian Air Force (IAF) had ruled out any structural modifications to the Su-30MKI to carry the missile. On 22 October 2008, A. Sivathanu Pillai, Chief Controller, R&D, DRDO and CEO and managing director of BrahMos Aerospace, announced that trials and tests were to be carried out by 2011, and the IAF would get