14. starptautiskā konference 2012 - Latvijas Jūras akadēmija

Proceedings of 14th International conference „Maritime Transport and Infrastructure - 2012”hangar below with capacity for a mix of 12-16 helicopters (NH90, AS532 Cougar, As 665 Tiger andSA342 Gazelle). The forward helicopter spot is strengthened to take a heavy rotorcraft of MV-22 orSikorsky CH-53 class. The ship have the military lift capacity of 450 troops- rising to 750 in shortterm overload conditions-and a 2,650 m2 vehicle desk for 60 armored vehicles and 13 Leclerk mainbattle tanks (MBT) or 1,200 tons of cargo (a side ramp provides direct vehicular access from the dockside).The stern well dock can accommodate 4 landing craft utility vessels, 2 landing catamarans and 2landing craft air cushion hovercraft. This MAS class also holds the hospital with 69 beds andadditional modular l\field hospital units may be embarked for humanitarian missions. Other modularfacilities can be embarked according to missions. The ship has large staff planning facility, extensivecommunication set and combat management system to manage real time situation awareness and selfdefense.The ship has all electric power and propulsion architecture. Four Wartsila diesel generatorsprovide total of 20.8 MW for propulsion and services, 2 MERMIND 7 MW pod propulsors, incombination with a bow thruster and dynamic positioning system, offer exceptional maneuverability(design being able to turn around its own length). The maximum speed is 19 kt, with a range of 11,000 n miles at a 15 kt cruise speed and its endurance is 45 days [2].The 2nd MAS type is “Juan Carlos I” class (Spain) command and projection ships of Spanishnavy. The single ship is in service for Spain navy from September 2010. These MAS have beenconceived to meet the Spain navy requirement for undertaking crisis management and force projectionmissions, conducting expeditionary operations at extended range and endurance, provide operationalcommand and control, support for special operations, air assault, amphibious operations, tacticalsealift and humanitarian relief missions. The vessel is primary intended to support amphibious powerprojection and army lift but additionally lends itself to sea-control missions with a larger fixed-wingair group embarked, it also offers utility for non-combat and evacuation operations [2].The prime contractor for “Juan Carlos I” class of MAS ships is shipbuilding company“Navantia” (Spain). This class ship design is arranged around 3 payload desks comprising the flightdesk, a hangar and upper garage deck and a dock and lower garage deck. Cargo handling is enabledthrough a combination of lifts, cranes and access doors. The lifts comprise two 27-ton aircraftelevators linking the flight desk and hangar desk, a 5-ton ammunition lift bringing munitions up to theflight desk from a deep magazine, a 20-ton cargo lift operating between the upper and lower garagedesks and a 2-ton provision lift linking the upper garage with a deep store. The well dock canaccommodate 4 LCM-1E or LCM-8 landing craft plus 4 rigid inflatable boats. Alternatively, 2 LCMcraft and single landing craft air cushion could be fitted inside. The lower garage desk stretchered totake vehicles like MBT is 1,400 m2. This area can be increased by a further 975 m2 if the dock is usedas a garage, allowing for the embarkation of up to 46 MBT. Above, the upper garage space offers2,046 m2 to accommodate lighter vehicles such as trucks and soft skinned vehicles. The adjacenthangar can hold up to 12 medium helicopters and a maximum of 7 McDonnell Douglas AV-8BHarrier II aircraft. The light vehicle garage can be used as additional hangar space when the MAS areoperating with enlarged air group in the aircraft carrier role. In this case, up to 30 NH90-sizehelicopters or 20 Harrier II STOVL aircraft could be hangared. The flight desk itself is 202.3 meter inlength and 32 meter wide, providing for the spotting of 4 CH-47 Chinook or 6 medium (Sikorsky SeaKing or NH90) helicopters. A 12-degree ski-jump is fitted on the bow to improve the payload/radiusperformance of embarked STVOL aircraft. The embarked payloads can be tailored according to theexact nature of the mission. Turning to the humanitarian mission the internal cargo arrangementallows for the embarkation of multiple payloads like sanitation, medicine, stores, space for evacuatednon-combatants and other. This class MAS is designed to support military force up to 1,200. The flagstaff can be 103, a landing force 903, a beach recognition group of 23 and air wing of 172. Thepermanent ship complement number is 243. The operation complex have the operational and planningspaces, information center, join intelligence center, and combat management and communicationsystems. A medical complex combines a general sickbay with the fully equipped hospital area. Thelatter include 2 operating theatres, a triage area, an X-ray room, sterilization area, laboratory, anisolation room and intensive care ward/post-operative room (up to 8 beds). This MAS also adopts anall-electric power and propulsion architecture. The maximum speed is 19.5 kt when fully laden(27,079 tons). Endurance is 9,000 n miles at 15 kt. [2].104