Trimaran Patrol Boat

Our friend at NavyRecognition offers this video of the CMN Ocean Eagle 43 prototype built for the Navy of Mozambique, in sea trials in what are reported to be State 5 seas.

There is no displacement listed, but, except in beam, this vessel is notably smaller than the Webber class WPCs (143 ft vs 154 for the Webber class). It has a smaller crew (7) and accommodations (15), but otherwise appears to have similar capabilities with a speed of 30 knots, a range of 3000 miles at 20 knots, and a 7 meter RHIB in a ramp at the stern.

They also advertise a proposed mine hunter version that is more limited in speed and dispenses with the small UAS flight deck in favor of unmanned underwater vehicles for mine hunting and destruction. Assuming the same hull is used, the dimensions for both are 43.6 meter in length, 15.7 meter beam, and two meter draft.

When it comes time to replace the 87 footers, perhaps we should consider something similar, though dealing with the much greater beam might be a bit of a challenge in some places.

Australia to Build a Polar Icebreaker

An artist's impression of Australia's new icebreaker.

Thanks to Tups for bringing this to my attention. He mentioned it in comments on an earlier post, but I felt it warranted a separate post.

The Sydney Morning Herald reports, the Australian Government is close to a “decision to select a British-based operator and Dutch shipyard for Australia’s $1 billion Antarctic icebreaker project.” gCaptain provides additional details and more images.

The new 156-metre long, 23,800-tonne vessel will have increased cargo and marine science capability but is expected to carry around the same number of passengers.

Its crucial ice-breaking capacity will give it the power to steam through 1.65-metre ice, compared to Aurora‘s 1.23 metres.

The $1B may sound familiar, about what the USCG expects to spend on a new Polar Icebreaker, but in fact that includes its full lifecycle cost and these are Australian $$, so in fact it is more like $710M. Presumably there will be savings because the ship will be built in Romania.

Perhaps inevitably the procurement process has been criticized. That there is only one bidder and the ship will not be built in Australia, both cause concern.

The ship is expected to operate out of Hobart, Tasmania.

The ship appears narrower than conventional icebreakers. It appears to be a hybrid, combining cargo, research, and icebreaking functions in a single relatively large ship.

Australia’s claims on Antarctica (held in abeyance now because of treaty) are extensive. Looking at the diagram below, they appear to include about half of the larger Eastern half of Antarctica. It may be that their stations are more accessible than those of the US. Their stations lie close to the Antarctic Circle while McMurdo is about 600 miles closer to the pole. In the Northern hemisphere the North coast of Iceland and the Bering Strait are on about the same latitude as their Antarctic stations.

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