Sea Technology

NOV 2017

The industry's recognized authority for design, engineering and application of equipment and services in the global ocean community

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www.sea-technology.com November 2017 / st 21 ing forecasted ship motions to those actually observed, the system refines key parameter estimations that im- prove the forecasting performance on the fly as the ship is operated. These parameters can also tell a lot about the vessel dynamics. For instance, the ver- tical center of gravity (VCG) position, which is vital in determining ship sta- bility, can dynamically change during underway operations due to several factors such as load, tank levels, icing, etc.; directly monitoring this through the information provided by Future- Waves can provide essential informa- tion not otherwise readily available. Applications It is not hard to conceive of an array of applications for FutureWaves. The technology was recently showcased at the 2017 Offshore Technology Confer- ence (OTC) in Houston, Texas. "The in- terest at OTC2017 was overwhelming, and from all directions, folks involved in offshore construction, production and logistics support were engaged and inquisitive, all realizing the benefit such an innovation would have," said Max Leonard, GD-APS product devel- opment lead. While GD-APS is just now engaging the commercial market for FutureWaves, they are braced for a strong pull from industry. They are managing solid interest from offshore oil and renewables, and starting to en- gage with the cruise and commercial shipping industries. The United States Navy and Marine Corps held a major scenario-driven crisis response exercise, Pacific Ho- rizon 2017, off the coast of southern California's Camp Pendleton in the summer, and FutureWaves was a part of it. Pacific Horizon 2017 was a series of events intended to exercise security assistance and infrastructure restora- tion support in the event of a natural disaster or civil unrest. The goals were to strengthen Navy-Marine Corps rela- tions and to improve 1st Marine Expe- ditionary Battalion's and Expeditionary Strike Group-3's interoperability by conducting a Maritime Pre-positioning Force equipment offload. This included demonstration of seabasing proficiency with Military Sealift Command (MSC) by moving supplies, food and equip- ment from a roll-on/roll-off (RO/RO) ship onto landing craft air cushions (LCAC) via the expeditionary transfer dock ship (ESD) for deployment to the beach. The USNS John Glenn (T- ESD-2) and the large, medium-speed RO/RO ship USNS Dahl (T-AKR-312) conducted S2S operations throughout the exercise and established new re- cords for seabasing capability. By the completion of the offload evolution, the ships had spent five days moored together, making it the longest S2S ma- neuver between an ESD and a RO/RO on record. "Participating in an exercise like Pacific Horizon was a great, hands-on experience for my crew in providing seabasing support to the Marines," said Capt. William McCullough, Glenn's ci- vilian master. "Several things made it possible, and the FutureWaves system was one of them. Staying in a moored ship-ship configuration for days on end would not have been possible if we did not have the detailed sea state, envi- ronmental and ship motion informa- tion provided by the system." In addition to the ship's master, the Glenn had a ship-handling expert (SHE) aboard, Capt. John Wells, also known as the mooring master. Wells has con- ducted numerous S2S operations in his career as a lighterage captain for the oil industry. "I can see FutureWaves playing a key role on the bridge of most ships, but in particular for these type of complicated operations," said Wells. "It is essentially like having a wave buoy, make that a plethora of wave buoys, around the ship and in all directions, providing an incredibly de- tailed assessment of the seas and how to best deal with them." ST John Kusters is a retired U.S. Navy captain and the former head of FNMOC, the Navy's Global and Re- gional Numerical Environmental Prediction Center. A graduate in ocean engineering from the Woods Hole Oceanographic Institution and MIT Joint Pro- gram, he is currently the General Dynamics pro- gram manager for ESMF/FutureWaves. info@edgetech.com USA 1.508.291.0057 Clearly Superior Imaging SONAR SYSTEMS SUB-BOTTOM PROFILERS BATHYMETRY SYSTEMS SIDE SCAN SONARS "It is essentially like having...a plethora of wave buoys, around the ship and in all directions, providing an incredibly detailed assessment of the seas and how to best deal with them." — Capt. John Wells

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