The 2nd series Ivan Grens will have more powerful engines
Second Series of Project 11711 Landing Ships to Get Heavier Engines
Project 11711 landing ships of the second series, Vladimir Andreyev and Vasily Trushin will obtain more powerful engines because of larger dimensions of the ships, representatives of Yantar Shipyard told Mil.Press Today answering the corresponding request.
"Indeed, we currently consider changing of the powerplant as the ship’s dimensions have increased", reported the shipyard’s press office.
"To maintain required speed and, especially, to perform landing assault missions, the ships will most likely need stronger powerplants. Initial designing proves that it is possible. The engines may be of another type, though they will be commercially produced Russian-made plants", added the shipbuilders.
This will be finally announced when the project developer, Nevskoye Design Bureau completes the technical project and hands it over to the shipyard. "Arrangement of the main powerplant is stipulated by the design documentation and will be implemented in accordance with the requirements approved by the Russian Navy based on the results of the amendments of the ship’s technical project to the modernized hull", summed up the Yantar’s representatives.
An insider in Nevskoye Design Bureau confirmed this information, adding the project was to be completed at the turn of 2019-2020 or even earlier. As for him, Russian industry can produce any kinds of engines for this class of ships, though the trials and maturation of some new components may take some time.
Some english-language info on the new 'Cayman' export variant of the 2nd series of the Ivan Gren class.
It seems it will displace 8000 tons instead of 6000-7000 tons as the 2nd domestic series is quoted to be, and will carry a total of 12 helicopters; making it something of a helicopter carrier (albeit with limited deck-space).
Cayman Instead Ivan Gren: New Model of Landing Ship to Emerge at IMDS-2019
The model and characteristics of the new large-size landing ship codenamed Cayman will be for the first time presented at the International Maritime Defense Show 2019 (IMDS-2019), a representative of Nevskoe Design Bureau (member of United Shipbuilding Corporation, USC) told Mil.Press Today.
The question is the ship’s export version, specified the interviewee.
Cayman will displace somewhat 8,000 tons and be capable to carry Ka-52K helicopters.
"The new landing ship is an in-depth update of Project 11711. In fact, it’s a new ship with expanded functionality", an informed industry insider shared. "The export version has not been assigned a project number yet, though in terms of its features, the ship is an evolution of the Project 11711 second series".
Two ships of this type were keel-laid at Yantar Shipyard on April 23. They may be equipped with stronger powerplant. By the yearend, designers will complete amending technical documentation for the Project 11711 second series.
Another first-timer presented by Nevskoe Design Bureau will be an advanced aircraft carrier Lamantin (stands for ‘manatee’). Further, the bureau’s booth at the USC pavilion will demonstrate the already known export version of Project 11711E landing ship.
As compared to basic Project 11711, the second series’ landing ships will obtain deck-based attack helicopters Ka-52K Katran. Moreover, the superstructure shape has changed; dimensions and displacement have increased, too.
IMDS-2019: Nevskoe Bureau Showed Cayman Landing Ship
Showing up at the International Maritime Defense Show (INDS-2019), Nevskoe Design Bureau unveiled the model and characteristics of the export version of the new Russian large-size landing ship Cayman. It is based on the second series of Project 11711, reports Mil.Press Today from the event.
According to Aleksey Yukhnin, deputy director for shipbuilding and military cooperation at Nevskoe Design Bureau, Cayman is intended for taking onboard, sea transportation, and landing on an unprepared coast of troops and equipment during amphibious campaigns. The ship will transport troops, plant mine and net defense fields, as well as sonar buoys for underwater surveillance and positioning systems in the ocean, sea and littoral zones.
"We display this updated project for the first time, though beyond the open exhibit", added the spokesman of the Nevskoe bureau.
Full displacement of Cayman ships will make 8,000 tons, length is 150 meters, beam is 19.5 meters, draft is 4.5 meters. The ship will accelerate up to 18 knots, the crew will include 120 men.
Cayman’s air group will consist of ten assault transport helicopters and two search and rescue ones. In addition, the ship will accommodate up to six landing boats lifting at least 45 tons each.
As a reminder, two landing ships were keel-laid at Yantar Shipyard in April 2019; both are of the second series of Project 11711 named Vladimir Andreev and Vasily Trushin. The ships are to join the Russian Navy in 2023 and 2024, respectively.