INS Vikramaditya - Delivery Acceptance Trials in June 2013

INS Vikramaditya - India's second aircraft carrier- is back on its feet. Three of the ship's eight boilers that had malfunctioned during trials in last year have been "opened up and set right," a senior Navy official told NDTV.

In sea trials last year, the ship sailed for 100 days and its flight deck - the most critical part of an aircraft carrier - is operational, senior officials told NDTV. The MiG 29 KUB two-seat naval fighter jet will be positioned on the Vikramaditya.

INS Vikramaditya at sea-trials in 2012 ( Image Courtesy - defense-update.com )

But because the seas in Northern Russia are frozen, the INS Vikramaditya can sail out of the port only in June this year for "delivery acceptance trials" - the penultimate stage before a ship is commissioned.

On acceptance of the ship from the builder, it will be formally commissioned with the Indian tri-colour being hoisted on top of ship after which INS Vikramaditya will start its journey towards India. The Navy intends to commission the ship in Russia and sail it back to India by October- November 2013. It is expected to join active service on 04 December, 2013 - Navy Day.

News Courtesy - ndtv.com

INS Vikramaditya to be inducted by last quarter of 2013

"The delivery of aircraft carrier Vikramaditya has been delayed to the last quarter of 2013", Defence Minister A K Antony said in Lok Sabha.

In reply to a written query, the minister said original cost of the project was finalised at $978.4 million in 2004 for its delivery in 2008 but in 2010, it was "renegotiated and revised" to $2.3 billion for delivery in 2012.

"The total cost of the project would remain at $2.3 billion at the time of delivery in last quarter of 2013," Antony informed the House.

INS Vikramaditya at sea trials ( Image Courtesy - jeffhead.com )

On steps to meet operational preparedness of the Navy, the Defence Minister said, "In the interim, the operational requirement of the Navy would be met by INS Viraat, which would remain in service till the induction of Vikramaditya."

Antony said during trials of the warship in 2012, tests on the main propulsion plant could not be completed due to defects encountered on boiler section and its rectification is likely to take six months. However, during trials the aircraft carrier has performed well in almost all other areas including Mig 29 K take off and landings.

News Courtesy - economictimes.indiatimes.com

INS Vikramaditya Trials Successful !!!

The controversial sea trials of the INS Vikramaditya in Russia, initially described as an embarrassing failure, appear to have actually been a huge success, and the propulsion problems developed by the aircraft carrier are not nearly as serious as reported in the media.

After the ship returned to the Sevmash shipyard a week ago the Indian Navy’s overseeing team, who closely monitored the sea trials, came to the conclusion that the ship had overall done extremely well and the program of tests had been largely fulfilled.

The conclusion from the trials is that the INS Vikramaditya has stood the test as a full-fledged highly capable aircraft carrier converted from the former hybrid missile-cum-aviation cruiser Admiral Gorshkov. The ship displayed excellent seaworthiness and manoeuvrability and performed flawlessly during aircraft takeoff and landing. It’s sophisticated radio-electronic, navigation and other systems demonstrated high efficiency and reliability.

The boiler problem did not prevent the INS Vikramaditya from completing the trials. Informed sources told The Hindu that Indian Navy officers were particularly impressed by the flight programme. A MiG-29K and a MiG-29KUB 4++ generation fighters performed 41 impeccable take-offs and landings with full arms payload and additional fuel tanks. The combination of Russia and India-made optical and electronic landing systems enabled the Russian pilots in 70 percent of the landings to hook the second out of three arrestor wires, which is considered a perfect result, the sources said.

Mig 29 K taking off from the deck of INS Vikramaditya ( Image Courtesy - Oleg Perov ) 

The malfunctioning of the boilers that occurred during high-speed tests will not require their replacement or removal from the vessel. The problem has been pinned down to insulation lining that is placed between the boiler steel casing and ceramic firebricks. Traditional asbestos lining was not used at the request of Indian specialists and replacement material developed slight deformation when the boilers were run at full power, causing some firebricks to fall out. 

The 44000-ton vessel also displayed superior manoeuvrability, performing a 360-degree turn at a minimum radius equal to one-and-a-half hull length at a speed of 18 knots.

Russian shipbuilders have promised to complete all repairs by the beginning of next year, but since pre-delivery trials in the White Sea can resume only in late May, when sea ice melts away, the Vikramaditya will be handed over to the Indian Navy next autumn instead of this December, the sources said.

News Courtesy - The Hindu