5.5
6.872
5.762
7.675
7.7
7
5.279
5.7
7.115
7.65
6.6
6.9
7.162
6.3
7.6
Echo-class survey ship (2002) GudangMovies21 Rebahinxxi LK21
The Echo class was a class of multi-purpose hydrographic survey ships in commission with the Royal Navy. The ships were primarily tasked with conducting survey work in support of submarine and amphibious operations, however, the class also has a secondary role in mine countermeasures. The two vessels of the class were the most recent additions to the Royal Navy's Hydrographic Squadron. Each ship displaced approximately 3,700 tonnes, and was equipped with a state of the art suite of equipment. The lead ship of the class, HMS Echo, was retired in 2022 and her sister ship in 2023.
Design
Echo and Enterprise were the first Royal Navy ships to be fitted with azimuth thrusters. Both azimuth thrusters and the bow thruster can be controlled through the integrated navigation system by a joystick providing high manoeuvrability. Complete control and monitoring for power generation and propulsion, together with all auxiliary plant systems, tank gauging and damage control functions is provided through the integrated platform management system (IPMS), accessible through workstations around the ship. The range of equipment carried includes the following:
Multi beam echo sounder
Single beam echo sounder
Survey Planning and Processing Systems
Side-scan sonar
Oceanographic Probe and sensors
Undulating Oceanographic Profiler
Doppler Current Log
Sub-bottom Profiler
Bottom Sampling Equipment
Survey motor boat fitted with multi-beam sonar and sidescan sonar
The vessels were armed. They carried a GAM-B01 20 mm cannon (a naval version of the Oerlikon 20 mm cannon), two miniguns and four General Purpose Machine Guns.
Role
The vessels were designed to conduct survey tasks in support of submarines or amphibious operations. They provided almost real-time tailored environmental information, and also have a secondary role as a mine countermeasure tasking authority platform, for which they were capable of embarking a dedicated mine counter measures command team, and supporting other mine warfare vessels.
Manning
The two ships followed the same type of crew rotation pattern as HMS Scott, in that two-thirds of their crew was needed to keep the ship operational, with the remaining one-third ashore. This allowed each ship to be available for deployment for up to 330 days a year.
The ship's crew consisted of 72 personnel, with 48 on board at any one time, working a cycle of 75 days on, 30 days off. The ships were able to accommodate 81 personnel if necessary. In support of this high availability, all accommodation and recreational facilities were designed for an unusual (in a warship) degree of comfort. All personnel shared double cabins with private facilities, except the captain and executive officer who both had single cabins.
Ships in the class
Notes
References
External links
"Echo Class Hydrographic / Oceanographic Survey Vessels". Naval-Technology.com.
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