The world's fastest attack submarine: Legend of Project 705 Alfa

The submarine attacking Lyra class or Russia's Project 705 Alfa still holds the title of the world's fastest submarine at a speed of 76km / h.

According to the People's Police, the Soviet legend Lyra 705 (NATO called Alfa) was a type of nuclear-powered submarine that operated during 1971 - 1997. Design work was carried out by the Department Malakhit design in St Petersburg started in May 1960. By 1968, the construction of this ship formally started at Admiralty Wharves shipyard and the first was put into service in 1971.

A total of 7 ships were built and put into the Northern Fleet's staff until 1990, all ships were dismantled after being used to study design errors and use those materials to create better new submarines. By 1997 they were officially " retired " and replaced with a more modern " juniors " generation in 2010.

Model of attack submarine Lyra Project 705. (Photo Modelkitsreview)

Dat Viet newspaper quoted the comments of many military experts, the Lyra class submarine Project 705 was a real breakthrough of the Soviet defense industry. However, they were never really perfect because they were too modern with the defense technology platform of that time.

Submarine Project 705 is 81.4 meters long; 7.6 m high; 9.5 m wide; The ship weighs 2,300 tons when floating and 3,200 when diving; need a crew of 31 people to control Project 705 submarines, according to information in the Young Knowledge. Lyra-class nuclear submarines only have 3,200 tons of water expansion, on par with conventional diesel-electric submarines.

The vessel is equipped with a unique OK-550 liquid lead-bismuth reactor to reduce the size of the reactor, thereby reducing the size of the entire vessel as well as changing the operating mode from lowest to high. most without causing much noise.

Thanks to this special furnace, the Lyra-class submarine can reach its maximum speed in just a minute. Until now, the speed of 76 km / h is still the largest speed a submarine has ever achieved. In addition, the ship's range is unlimited when fully supplied with food.

The Lyra attack submarine reaches its maximum speed in just a few minutes.

Lyria attack submarine Project 705 officially stopped working in 1997. Foxtrotalpha.jalopnik image
Alpha's speed makes it a real " killer " and when it starts chasing enemy ships. Lyra 705 is the first submarine to be able to avoid torpedo attacks by using excellent speed and maneuverability. At full speed, they absolutely have the ability to avoid torpedoes.

For weapons, submarine attack Project 705 owns 6 533 mm torpedo tubes. The ship usually has 18 SET-65 torpedoes or 53-65K, 20 VA-111 Shkval torpedoes, 11 SS-N-15 cruise missiles, 12 SS-N-16 cruise missiles, and 24 torpedoes.

The most innovative feature of the project is the unprecedented ability to automatically reduce the number of sailors required for other submarines of the same size and purpose. However, this reduction becomes their weakness due to difficulties in repair and maintenance.