NOAA Ship's Annual Shakedown Cruise

Press Release
Wednesday, March 20, 2013
Shakedown & Patch Test 2013: Image credit NOAA

The 'Okeanos Explorer' is conducting mapping operation in the Western North Atlantic as part of the annual ship shakedown.

Multibeam and singlebeam mapping operations are being conducted 24/7 between Rhode Island and the U.S.-Canadian territorial boundary, while sub-bottom profile mapping is being conducted each day between the hours of 1000 and 1800 throughout the March 18, 2013, to April 5, 2013 cruise.

Research vessels conduct annual ship shakedown tests to perform at-sea testing of all scientific and shipboard systems following any significant period of inactivity and after major changes or upgrades to systems.  Shakedown cruises are essential to a successful field season, and NOAA Ship Okeanos Explorer conducts one every year.

Multibean Patch Test
As part of the at-sea testing, NOAA conduct a system calibration to quantify the accuracy, precision, and alignment of the multibeam sonar. The calibration includes determination of residual biases in roll, pitch, heading, and navigation timing error. This procedure, commonly referred to as a “patch test,” is performed by acquiring data that will highlight only one bias parameter at a time. Generally two lines of data must be acquired to resolve each bias. Vessel speed, direction and/or seafloor slope will be specified for each line.

Ship Systems
Ship shakedown cruises are also used by the ship to provided refresher training and safety stand-down for all crewmembers and to run all of the ship's equipment after sitting alongside a dock for several months during the offseason, typically in winter.

Ships typically take this time to perform safety drills and routine maintenance on major equipment including main engines, stern and bow thrusters, dynamic positioning system, fast rescue boats, cranes, and even galley equipment like refrigerators and ovens. All of this equipment is essential to a successful field season and must be sea tested before heading to distant ports of call for several months.


Maritime Reporter September 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds


US Orders EPA to Rewrite Ship Ballast Water Dumping Rules

A federal appeals court in New York ordered the government to rewrite its rules regulating the discharge of ballast water by ships, in a victory for environmental

Navy Kicks Off Tours with Industry Program

The Navy kicked off a new program Oct. 5, designed to give high performing officers and Sailors experience at large corporations for approximately one year.

Smith Taken on Rolls-Royce Holdings Board

Rolls-Royce Holdings plc today announces the appointment of Sir Kevin Smith CBE as a Non-Executive Director.  Sir Kevin will join the Board with effect from

Marine Science

Choi-Wan to hit SE Japan

Tropical Storm Choi-Wan, located near 21N/158E yesterday (4 October), is forecast to move WNW-NNW over the next days and intensify to a very large typhoon. A large area of HIGH to VERY HIGH sea,

Demands for Icebreaker Tours Spiral

Plans to terminate commercial tours to the North Pole on the nuclear-powered icebreakers of the Atomflot company in 2016 have surged the demand for these tours.

Hempel at 'Danish Maritime Days' in Copenhagen

Hempel will take part in the Danish Maritime Days (DMD) event next week and make presentations at the DMD Technical Conference, which is being held in cooperation with Danish Maritime,

Ocean Observation

Choi-Wan to hit SE Japan

Tropical Storm Choi-Wan, located near 21N/158E yesterday (4 October), is forecast to move WNW-NNW over the next days and intensify to a very large typhoon. A large area of HIGH to VERY HIGH sea,

DP World Plans Big for the Panama Canal

DP World is expanding its container terminal at Port of Caucedo following the expansion of the Panama Canal to accommodate larger container ships, reports ASC.

Arctic Ice 'Too Thick' for Shipping Route

Sea ice in the Arctic is still too thick for Northwest Passage commercial shipping route in spite of warming temperatures. This is according to new research from York University.

Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Naval Architecture Offshore Oil Pipelines Port Authority Ship Electronics Ship Repair Shipbuilding / Vessel Construction
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1841 sec (5 req/sec)