Turya class

**Project 206M**
	Cuban Project 206ME boat on plane, 1984.
Ship data
Ship type	Hydrofoil
Shipyard	Shipyard 202 Vladivostok; Shipyard 5 “Primorsky” Leningrad; Shipyard 363 “Sredne-Newski” Leningrad ; Shipyard 341 “Vympel” Rybinsk
Construction period	1973 to 1985
Units built	40
Ship dimensions and crew
length	39.5 m ( Lüa )
width	Hull: 7.6 m Wing: 12.5 m
Draft	Max. Hull: 2.01 m Wing: 3.24 m
displacement	Standard / full: 218 t / 250 t
crew	25th
Machine system
machine	3 × M504 diesel engine
Machine ; performance	3 × 5,000 PS (3,677 kW)
Top ; speed	44 kn (81 km / h)
propeller	3 × three-leaf
Armament
	1 × 2 57mm L / 75 AK-725 ; 1 × 2 25mm L / 79 2M-3 ; 4 × 1 torpedo tubes ∅ 533 mm;

Project 206M as their basic model project 206 , with the code name Schtorm ( Russian "Шторм" ) (German: " Storm ") and the NATO as Turya class called, is a class of hydrofoils from Soviet production, as torpedo boats were constructed . According to the Russian classification, it is a "torpedo hydrofoil" ( Russian Торпедный катер на подводных крыльях ).

development

Planning for the project began as a further development of Project 206 in 1971 at the Almas shipyard with the aim of reinforcing the weak armament of the 206 ships with a turret. To do this, the boats had to be widened until there was enough space and stability to accommodate an AK-725 gun turret weighing almost 15 tons.

technology

Hull and drive

The fuselage was planned with ten watertight compartments. The heavy armament and the necessary adjustments to the hull almost doubled the weight of the Project 206M boats compared to Project 206.

The drive was slightly modified compared to the previous class and the three engines were divided into two departments. Despite three diesel engines of the type M504 with a total of 15,000 hp and gliding on wings, the achievable maximum speed did not increase, but decreased from 45 kn in project 206 to 44 kn in project 206M.

The range was slightly smaller compared to Project 206 and was now 1450 nm at 14 kn. At a higher speed of 37 kn, the range decreased to 600 nm due to the increased fuel consumption.

Armament

As in Project 206, 533 mm torpedoes were planned as the main armament . Two OTA-53-206M pipes were placed amidships on each side of the ship. There were no reserve weapons available on board for the pipes, so that after the four weapons had been fired, an appropriate facility had to be called up to carry out the reloading. Various 533 mm torpedo models could be used, ranging from the 53-56 model against surface ships to the SET-65, which could also track enemy submarines with its active and passive sonar location down to depths of 200 m.

On the stern of Project 206M there is an AK-725 turret in which two 57 mm L / 75 guns are mounted parallel to the axis. The radar-guided fire of the weapon can be used against ship, land and - to a limited extent - against air targets.

For air defense was a 2M-3M -Geschütz with two 25-mm L / 79 machines guns to the back set.

electronics

Arrangement of weapons and sensors on Project 206M on this photo from 1985. From right, the AK-725 tower, followed by the associated MR-103 fire control radar, on the main mast the antenna of the friend-foe identification system and the MR-102 main radar . On the forecastle, the 2-M3M gun, here covered with weather protection.

Different radar systems were installed, the following is a list of the NATO names of the devices:

An MR-102, NATO: Pot Drum , Radar is installed on the main mast for air and surface searches. It works in the X-band .
A fire control radar of the type MR-103, NATO: Muff Cob , is installed between the mast and the turret to direct the gunfire of the AK-725 tower .
A system called High Pole B by NATO has been installed for friend-foe detection .

A diving sonar of the type MG-329 "OKA" (NATO: Foal Tail) is available to search for submarines.

variants

Project 206ME

Project 206ME is a variant of Project 206M designed for export. It lacks the sonar system of Russian boats and the torpedo tubes belong to the OTA-53-206ME model.

Boats of the project 206M / ME

24 boats from Project 206M and 16 from Project 206ME were built. While the 206M project was built at four different shipyards, the 202 shipyard in Vladivostok exclusively manufactured all export boats.

Current Status

In 2004 there were only five ships of this class in service in Vietnam, but the operational readiness and status are unknown. Two of them have neither torpedo tubes nor sonar.

The Coast Guard of the Seychelles has a boat Turya class.

Evidence and references

Remarks

↑ Also known as "Almas".

Individual evidence

^ Norman Friedman: The Naval Institute guide to world naval weapon systems. P. 681.

literature

Юрий В. Апальков: Корабли ВМФ СССР. Том 3. Противолодочные корабли. Часть 2. Малые противолодочные корабли. (For example: Juri W. Apalkow: Ships of the Soviet Navy. - Part III "Submarine Hunting Ships" Section 2 "Small Submarine Hunting Ships". ) Galea Print, 2005, ISBN 5-8172-0095-3 ( Russian).

Technical systems:

Norman Friedman: The Naval Institute guide to world naval weapon systems. US Naval Institute Press, 1997, ISBN 1557502684 .

Web links

Commons : T-68 class - collection of pictures, videos and audio files

[1] Also known as "Almas".

[2] Norman Friedman: The Naval Institute guide to world naval weapon systems. P. 681.