Project 11770 landing craft ( code “Serna” ) - Russian landing craft in an air cavity. Designed for landing on an unequipped shore or removing from it combat tracked, wheeled and other military equipment with a total weight of up to 45 tons, as well as advanced landing units with weapons (92 people) at a high speed of up to 30 knots , which exceeds the performance of other boats of the same class.
| Project 11770 Landing Boats "Chamois" | |
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 D-1442 "Rear Admiral Olenin." 2015 | |
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| Years of construction | since 1993 |
| Years in the ranks | since 1994 |
| Built | sixteen |
| In the ranks | 12 + 1 + 3 |
| Main characteristics | |
| Displacement | 61 t (normal) 99.7-105 t (full) |
| Length | 25.8 m (largest) 23.65 m ( waterline ) |
| Width | 5.8 m (largest) 5.7 m (waterline) |
| Height | 9.6 m (from OP to mast ) |
| Draft | without cargo: 0.42 / 1.48 m ( bow / stern ) with cargo: 1.16 / 1.52 m (bow / stern) |
| Engines | 2 diesel engines M503A |
| Power | 2 × 4000 l. with. |
| Mover | Jet propulsion |
| Speed | 30 knots (largest) |
| Sailing range | 600 miles at 29 knots |
| Autonomy of swimming | 1 day |
| Crew | 5 persons (including 2 midshipmen ) |
| Landing capacity | 1 × main battle tank or 2 × BMP / BTR or 92 man landing or up to 45 tons of cargo |
Content
Development History
The landing craft of the project 11770 was developed in the Central Design Bureau for the SEC them. R. E. Alekseeva ”( Nizhny Novgorod ).
Design
The peculiarity of the landing craft of this project is that its movement is based on the principle of an air cavity , the essence of which is to create an artificial air layer with excess pressure under the bottom of the boat. It isolates most of the housing from contact with water, thereby achieving a significant reduction in hydrodynamic resistance and ensures high speeds of more than 30 knots .
Another feature of this landing craft project is their propulsion . Instead of the usual propellers , project 11770 landing craft are equipped with a new type of water-jet propulsion device , the impeller blades of which are adapted for operation with a constant flow of air into the hydraulic section of the propulsion device. This mover is called the ventilated water-jet mover - VVD. Unlike a traditional jet propulsion device, the VVD does not have a straightening device and a nozzle forming a jet. Structurally, the VVD consists of a water conduit, on the output section of which there is an impeller driven by a propeller shaft. DKA is equipped with two diesel engines of the brand M503A with a capacity of 4000 liters. with. (2940 kW ) each with a fuel consumption of 165 g / hp. hour.
The hull of the boat is made of aluminum . The sideboard height at the stem is 3.45 m, at the midship - 2.9 m. The boat can transport goods and equipment at a speed of 30 knots under sea conditions up to 2 points. If the sea is disturbed up to 3 points, the transportation of goods is possible at a speed of up to 27 knots to points on the sea coast for removal of up to 600 miles, but the mass of goods should not exceed 29 tons.
Safe swimming with full displacement is permissible under sea conditions up to 5 points. The speed at the same time does not exceed 8 knots. Landing boat can independently take off the shallows . The autonomy of the landing boat in terms of provisions and water is 1 day . The service life of the boat is determined to be 15 years with two intermediate repairs every 5 years.
The armament of the boats is absent. [one]
Landing Possibilities
1 main battle tank or 2 BMP / BTR , or up to 45 tons of cargo (with a three-point sea swell - no more than 29 tons), or 92 landing troops.
Service History
“D-144” was built in 2007 at the Volga Shipbuilding Plant in Nizhny Novgorod , and in the same year was transferred to Novorossiysk to conduct acceptance tests . The crew of this landing boat (5 people) was formed and trained in the Caspian flotilla, where by that time there was already a DKA of this project. On February 19, 2008, the landing boat "D-144" raised the Andreevsky flag and became part of the Black Sea Fleet of the Russian Federation.
As of January 2009, 4 boats of this project were in service with the Caspian Flotilla , 1 boat was in service with the Russian Black Sea Fleet , and 1 more boat was in service with the Baltic Fleet .
October 8, 2010 at the disposal of the Pacific Fleet was handed over a new landing boat "D-107" code "Serna". The new boat will be part of the amphibious assault formation , which is based in Strelok Bay. The landing ship "D-107" was laid down on the slipway of the "Eastern Shipyard" in Vladivostok on December 11, 2008, launched on April 15, 2010, and the ship was given state tests on May 30, 2010.
Project Boat List
| Title | Board number | Manufacturer | Factory number | Bookmark Date | Launching | Commissioning | Fleet | condition |
|---|---|---|---|---|---|---|---|---|
| Shipyard “Volga” | 1.07.1993 | 06/21/1994 | 12/30/1994 | Baltic Fleet | ||||
| Shipyard “Volga” | 12/29/1999 | Caspian Flotilla | ||||||
| Shipyard “Volga” | 12/30/2002 | Caspian Flotilla | ||||||
| Shipyard “Volga” | 12/27/2005 | Caspian Flotilla | ||||||
| Shipyard “Volga” | 02/19/2008 | Black Sea Fleet | ||||||
| Shipyard “Volga” | 2008-12 | Caspian Flotilla | ||||||
| Shipyard “Volga” | 12/26/2009 | Baltic Fleet | ||||||
| Shipyard “Volga” | 12/26/2009 | Baltic Fleet | ||||||
| Shipyard “Volga” | 05/29/2013 | Caspian Flotilla | ||||||
| Shipyard “Volga” | 05/29/2013 | Caspian Flotilla | ||||||
| Shipyard “Volga” | 08/04/2014 | Black Sea Fleet | ||||||
| East Shipyard | 12/11/2008 | 04/15/2010 | 06/10/2010 | Pacific fleet |
| Title | Board number | Manufacturer | Factory number | Bookmark Date | Launching | Commissioning | Fleet | condition |
|---|---|---|---|---|---|---|---|---|
| Shipyard “Volga” ( Nizhny Novgorod ) | Since 2004 - civilian. | |||||||
| Shipyard “Volga” | ||||||||
| Shipyard “Volga” | ||||||||
| Shipyard “Volga” |
Photos
D-56 at the international naval salon 2011
D-56 at the international naval salon 2011
D-107. Amur Bay . 2012
D-156 at Astrakhan. 2015
D-172 and D-131 at Astrakhan. 2015