Cyclone class patrol ship
I want to introduct something about .
(Redirected from Cyclone class Patrol ship)
USS Cyclone (PC 1)
Career (US)
Builder:
Bollinger Shipyards,Inc.
General characteristics
Displacement:
331 tons (336 metric tons) full load
Length:
170ft (52m)
Beam:
25ft (7.6m)
Propulsion:
Four Paxman diesels;four shafts;3,350 shaft horsepower (2.50 MW)
Speed:
35 knots (40 mph;65 km/h)
Crew:
Four officers,24 enlisted personnel
Armament:
1 MK 96 autocannon1 MK 38 25 mm autocannon5 .50 caliber machine guns2 MK 19 40 mm automatic grenade launchers2 M60 machine guns
USS Hurricane (PC-3) moves past USS Whirlwind (PC-11) and another unidentified Cyclone-class patrol ship at Naval Amphibious Base Little Creek,2005.
One of two Mk 38 25mm machine guns carried by the Cyclone class patrol ships (USS Chinook shown)
The Cyclone class Patrol boats are a class of United States Navy and United States Coast Guard coastal patrol boats. The primary mission of these ships was coastal patrol and interdiction surveillance,an important aspect of littoral operations outlined in the Navy’s strategy,“Forward…From the Sea.”These ships also provided full mission support for Navy SEALs and other special operations forces. The Cyclone class ships are assigned to Naval Special Warfare. Of the thirteen ships,nine originally operated out of the Naval Amphibious Base Little Creek,Norfolk,Virginia,and four originally operated from the Naval Amphibious Base Coronado. These ships provide the Naval Special Warfare Command with a fast,reliable platform that can respond to emergent requirements in a low intensity conflict environment.
Construction
In 1990,the Navy awarded a contract to Bollinger Machine Shop and Shipyard of Lockport,LA for construction of eight Patrol Coastal (PC) ships based on the Vosper Thornycroft Patrol Craft hull design. A follow-on contract for five additional ships was executed in July 1991. The Patrol Coastal Ships were procured with the primary missions of coastal patrol,interdiction surveillance,and to support Naval Special Warfare missions as an important aspect of littoral operations. Typically,first-of-class shipbuilding projects may take between three and six years from contract award to delivery,depending upon the complexity of the vessel and other factors. The Cyclone (PC 1) coastal patrol craft was awarded on August 3,1990 and delivered on Feb. 19,1993.
The set of (fleet) propellers initially fitted to the PC-1 Cyclone Class were designed by Vosper Thornycroft Limited (VT),United Kingdom,and were built by both Brunton Propeller,Sudsbury,England,and Volda Bamford,Ltd.,Stockport,England. This fleet propeller design was tested and determined to be unacceptable because it failed to propel the ship to 35 knots (at half load displacement) and did not allow the ship to develop the contractual full power. The fleet propeller blades also exhibited cavitation erosion damage,and on-board noise levels above the specification requirements.
The US Navy conducted a research and development design program at David Taylor Model Basin,Naval Surface Warfare Center,Carderock Division (NSWCCD),with the preliminary goal of reducing the propulsion generated onboard radiated noise levels in order to improve habitability. Secondary goals were to enable the PC class to meet its performance requirements at an increased displacement,and to eliminate the cavitation erosion damage tendencies to the propeller blades. Additional experiments evaluated the PC-1 with the installation of different stern flap designs. The stern flaps were tested at various angles,in order to determine the configuration which would yield the optimum powering characteristics.
PC-1 final US Navy 6-bladed design propellers were installed on PC-13 Shamal in August,1995;and full scale propulsion,acoustic,and vibration trials were conducted by the Combatant Craft Engineering Branch (Code 23). The PC-13 Shamal was also fitted with the stern flap designed by Cusanelli (5200),and full scale testing was conducted concurrent with testing of the US Navy 6-bladed design propellers. The stern flap provided for a decrease in delivered power throughout the entire speed range,and an increase in maximum attainable ship speed.
PC 5 (in camouflage paint) and PC 6 made the first Mediterranean deployment by the class in 1995. PC 3 and a sister had camouflage paint during a 1997 deployment to Europe. A shore-based Maintenance Support Team supports each unit deploying overseas with three 20-ft vans for spares and repair work.
Originally to have been a class of 16 intended to replace the 17 overaged PB Mk-III for use by SEAL Special Boat Squadrons,the last three units were not funded. Under the…(and so on) To get More information ,you can visit some products about timber supplier,manual food processor,. The products should be show more here!
About the Author
himfr can provide you most popular hot products from china!
FuelBan Video 16 Ideal material for Model making,prototyping .wmv
