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AS-28 surfacing in theBering Sea | |
| History | |
|---|---|
| Name | AS-28 |
| Builder | Krasnoye Sormovo |
| Yard number | 1 |
| Laid down | January 1982 |
| Launched | 10 December 1985 |
| Completed | 12 August 1986 |
| Commissioned | 12 August 1986 |
| Status | in active service |
| General characteristics | |
| Class & type | Priz-classdeep-submergence rescue vehicle |
| Displacement | 55 t (54 long tons) |
| Length | 13.5 m (44 ft 3 in) |
| Beam | 3.8 m (12 ft 6 in) |
| Height | 4.6 m (15 ft 1 in) |
| Speed |
|
| Range | 21 nmi (39 km) |
| Endurance |
|
| Test depth | 1,000 m (3,300 ft) |
| Capacity | 20 passengers |
| Crew | 5 |
AS-28 is aPriz-classdeep-submergence rescue vehicle of theRussian Navy, which entered service in 1986.[1] It was designed for submarine rescue operations by theLazurit Design Bureau inNizhny Novgorod. It is 13.5 m (44 ft) long, 5.7 m (19 ft) high, and can operate up to a depth of 1,000 m (3,300 ft).
On 5 August 2005AS-28, under the command of LieutenantVyacheslav Milashevskiy, became entangled with the aerial of ahydrophone array off the coast of theKamchatka Peninsula, inBerezovaya Bay, 70 kilometres (43 mi) southeast ofPetropavlovsk-Kamchatskiy,Kamchatka Oblast. The aerial, anchored by 60-tonne concrete blocks, snared the propeller of the submarine, and the submarine then sank to the seafloor at a depth of 190 metres (620 ft). This was too deep for the ship's complement of seven to leave the submarine and swim to the surface. British rescuers and Russian officials stated thatfishing nets also had entangled the vessel.

Immediate support was offered by theRoyal Navy,Japan Maritime Self-Defense Force and theUnited States Navy. The United Kingdom sent aScorpio 45remotely operated vehicle (ROV) viaC-17 Globemaster III cargo aircraft and a team to operate it. The United States sent one unmannedSuper Scorpio ROV fromSan Diego, airlifted viaC-5 Galaxy transport. Each unmanned vehicle was also accompanied by a team to operate it. It was intended that these unmanned rescue vessels, with their robotic arms, would be able to cut the nets or cables that anchored the submarine. The American ROV was assembled on the support shipPriz although they were not required to get underway as the British Scorpio was able to execute the rescue. A tactical decision by theUnited States Pacific Fleet command team atPearl Harbor, allowed the British crew to use the limited local resources toward one rescue asset. The British team's efforts resulted in a successful rescue.
On 6 August, Russian PresidentVladimir Putin ordered Russian Minister of DefenceSergei Ivanov to fly toPetropavlovsk-Kamchatsky to oversee the rescue operation, which was under the command of the Commander of the Russian Pacific Fleet, Admiral Viktor Fedorov.
Russian Admiral Fedorov (Fyodorov) first discussed usingexplosives to cut the antenna but those tactics were never employed. The Russian oceangoingtugsMB-105 andKIL-168 instead attempted to lift the stricken craft to the surface using underslung cables. This attempt proved futile. Meanwhile, to conserve energy and oxygen, the crew ofAS-28 shut down the submarine's non-essential systems (including the heater), donned thermal suits, and rested.
The British Scorpio was the only foreign ROV to arrive and be deployed.[2] It successfully cut away the cables which had snagged the submarine while surface ships had retreated a safe distance.
On 7 August, all seven sailors were rescued after the cables snaring their submarine were cut by a British ROV. The submarine surfaced at 4:26 p.m. local time and all seven crewmen exited the vessel without assistance with four to six hours of air remaining.[3]
The Guardian reports questions have been raised over how long Russian officials waited to request help.[4] The first exposure of the accident came when the wife of a crewman called a radio station 24 hours later, and the wife of commander Milashevsky claims they were actually stranded Wednesday.Kommersant reported that the head of the Navy Vladimir Kuroyedov, may be relieved over this, theKursk, and other incidents.[5] Another nuclear submarine, theK-159, being towed to the junkyard, sank in 2003[6] when the pontoon broke loose, with the loss of nine lives. TheBBC also reported that in July, aninter-continental ballistic missile test firing witnessed by Putin failed to launch twice; then exploded soon after launch the next day. Although officials claimed the crew ofAS-28 had food and water for five days, they were actually desperately short of water.[7]
The story of the submarine's rescue was featured on theBBC One documentarySubmarine Rescue. The documentary was subsequently awarded the accolade of "best documentary" by the British Maritime Society. The rescue ofAS-28 by Scorpio was also featured as the subject of the tenth episode of the 2007–2008 documentary seriesCritical Situation, entitled "Running Out of Air".