“Fastest Ship” is Dual Fuel

MarineLog is reporting tests of a  99 meter catamaran ferry, built by Australian shipbuilder Incat Tasmania, that reportedly made 58.1 knots while fueled with Liquefied Natural Gas.  It is claimed to be “…the world’s first dual fuel high speed ferry to operate on LNG as its primary fuel, and the fastest, environmentally cleanest, most efficient, high speed ferry in the world.”

“The vessel’s high speed can be attributed to the combination of Incat wave piercing catamaran design, the use of lightweight, strong marine grade aluminum, and the power produced by the two 22MW GE LM2500 gas turbines driving Wartsila LJX 1720 SR waterjets.”

“Incat has built 25 High Speed Craft over 5,000 gross tonnes with a top speed in excess of 45 knots.”

The similarities to the Navy’s new JHSV and China’s much smaller type 022 missile boat are apparent.

Incidentally, in spite of the advanced hull form, this still takes a lot of power, two 22MW GE LM2500 turbines equates to over 59,000 shaft horsepower, so its going to use a lot of fuel.

The Sunken Cutter Mohawk as Art

File:USCGC Mohawk (WPG-78).jpg

USCG photo, USCGC Mohawk (WPG-78) in her war paint

Some beautiful photography taken aboard the 165 foot cutter Mohawk. See the CNN report.

“The World War II ship has a rich history. Sixty-nine years ago this month, the USS Mohawk was the last vessel to radio General Dwight D. Eisenhower, later President of the U.S., informing him the weather was clearing for the D-Day invasion of Normandy.

“In May last year the USS Mohawk was blown up and sunk off the coast of Sanibel Island, to be used as an artificial reef attracting exotic marine life — including a mammoth whale shark.

“But before she was an underwater gallery, the grand old ship was an important part of the U.S. naval force, launching 14 attacks against enemy submarines in the Atlantic between 1942 and 1945.

“The 1,000 ton ship survived 14 Nazi attacks and rescued more than 300 survivors from torpedoed ships during the war.”

Thanks to Patrick for bringing this to my attention.

Offshore Patrol Cutter Concepts

This is in response to Bill Smith’s suggestion, ” I’d love to see 1 page with each of the design’s made public so far shown.  It would make a great comparison of the concepts.”

No new information here, but it will, hopefully, make it easier to find some of the information already presented, including some that might have been given only in the comments.

Unfortunately the information is very limited. There have been almost no specifics provided for any of the designs. Only Vigor has chosen to discuss the details of their design, with its Ulstein X-bow. It is reported to have a length of 328 feet, a beam of 54 feet, a draft of 16.5 feet, and a max speed of 22knots. That is a relatively large ship. I do like its volume and the reconfigurable space they included. Their concept is discussed here: “Unconventional Contender for the Offshore Patrol Cutter”

Vigor Offshore Patrol Craft 01

VT Halter has partnered with DCNS. A concept that accompanied their announcement is discussed here: “VT Halter Marine and DCNS to Partner for OPC Bid.” Their proposal appears to be similar to the ships DCNS has designed to fulfill a Malaysian requirement for six “Littoral combat Ships.” Those ships are reported to be 107 meters long, a 16 meter beam, and 2,750 ton displacement.

VT Halter Marine, Inc. (VT Halter Marine), a subsidiary of VT Systems, Inc. (VT Systems), today announced its partnership agreement with DCNS to submit a proposal to the Department of Homeland Security (DHS) for the design and construction of the U.S. Coast Guard (USCG) Offshore Patrol Cutter (OPC). VT Halter Marine will be the prime contractor and DCNS will be its exclusive subcontractor for the OPC platform design.

The only information we have from Huntington Ingalls is this photo from a DefenseNews.Com report.

Bollinger seems likely to use a Damen design, as they did for the 87foot WPBs and the 154 foot WPCs. We have seen artists renderings of the Netherlands Navy’s Holland Class OPV in Coast Guard colors, and we have also seen a rendering of an upgraded Bollinger shipyard with a Holland Class under construction, but so far I have seen no announcement of what design they will actually build. I have always felt the Holland class was a bit more ship than the Coast Guard could afford for a class that emphasizes “affordability,” and is expected to cost about half of what the NSC costs. Damen has a large portfolio of designs that they discuss here: http://offshore-patrol-security.com/cms-assets/documents/59716-108335.damen-opv-presentation-portsmouth-2012.pdf Of the designs presented the 2400 and 2600 tons designs appear closest to Coast Guard specifications but even they would likely have to be modified. There is a rendering of a cutter in Coast Guard colors on the last page.

Marinette Marine‘s concept is reported here: http://www.marinettemarine.com/opc.html As part of the Fincantieri Group it appears they may be offering a modified version of the Italian Navy’s Commandante Class patrol vessel. An obvious difference is that the Marinette Marine concept has the bow raised a deck. No specs were provided for OPC concept. Below are the specs for the Italian vessels which would almost certainly have to be enlarged to meet the range and seakeeping requirements of the OPC program.

  • Crew: 80 total including 8 officers
  • Overall Length: 88.4m (292 ft)
  • Length at Waterline: 80.3m (265 ft)
  • Beam: 12.2m (40.26 ft)
  • Draught: 4.6m (15.2 ft)
  • Full Load Displacement: 1,520 tons
  • Armament: 1×76 mm, 2x25mm
  • Speed: 25 knots
  • Range: 3,500 nmi
  • Helo deck and hanger for NH90 (essentially the same size as an MH-60)

Eastern has published a conceptual rendering as a single page pdf discussed here: https://chuckhillscgblog.net/2013/06/11/easterns-opc-concept/ It is limited to some drawings depicting the interior and one exterior viewed as if the observer was in an elevated position off the ship’s starboard bow.

So far I have seen no information about the proposals from NASSCO or Bath Iron Works.

Catamaran Patrol Boat for Australia’s Great Barrier Reef

gCaptain reports

Incat Crowther and Marine Engineering Consultants (MEC) have started work on the construction of a 24m long-range catamaran patrol vessel that will work to protect the Great Barrier Reef, Incat Crowther said Wednesday.

Among its features are solar panels and storage batteries to relieve the generators of some of the housekeeping load and possibly for loiter propulsion.

Larger Firescout UAS. Too Big for the Coast Guard?

For quite some time the Coast Guard has been planning on putting helicopter like Unmanned Aerial Systems on their ships. Interest has centered on the Navy’s MQ-8B Firescout. I suspect the hangar designs for the National Security Cutters and Offshore Patrol Cutters were based in part on the size of the MQ-8B.

File:US Navy 100514-N-0000X-001 Civilian artisans from Fleet Readiness Center East perform maintenance and corrosion assessments .jpg

United States Navy photo with the ID 100514-N-0000X-001, MQ-8B (smaller UAS) undergoing maintenance

Now DefenseNews is reporting the Navy is announcing they will stop production of the 3,150 pound max gross weight “B” model and go to a much larger 6,000 pound max gross weight “C” model based on the Bell 407 Jet Ranger. This aircraft is not only approaches the size of the H-65, it is actually longer.

File:PHI Bell 407.jpg

Bell 407 Jet Ranger, photo from Gerry Metzler, IMG_383

The larger MQ-8C certainly offers advantages over the smaller “B” model, including the ability to maintaining 24/7 surveillance with only three flights a day. The Navy believes they will be able to deploy three on their frigates and two in addition to an H-60 on the LCSs. The NSCs probably have adequate space, but it is unclear if the space provided for in the specifications for the Offshore Patrol Cutters will allow them the emulate the LCSs’ aviation facilities or if they will be able to carry even one of these larger UAS in addition to a manned helicopter.

Eastern’s OPC Concept

H_K found an Eastern Shipbuilding advertisement showing there conceptual design for the OPC. You can see it here: http://www.easternshipbuilding.com/wp-content/sdaolpu/2013/06/ESG-OPCFullPageWeb1.pdf

Not a bad looking little ship. Looks like with the location of the stack, the hangar may be offset to port. I don’t like the fact that the 57mm is sitting low relative to the bulwarks of the bow.

As H_K noted this does look a lot like New Zealand’s Protector Class OPVs.

Djibouti Creates a Coast Guard

We have a report of the establishment of another Coast Guard. This time it is for Djibouti.

Apparently the USCG and France were also involved, but interestingly this is another example of the Japanese assisting in development of Coast Guards in other countries.  They have also promised substantial aid to the Philippine Coast Guard.

Orders for 36 New Small Boats (RB-S-II and CB-OTH-IV)

The Acquisitions Directorate reports they have placed orders for

Response Boat-Small (RB-S) II

Twenty 29 foot Response Boat-Small (RB-S II) from Metal Shark Aluminum Boats of Jeanerette, La., valued at $6.6 million.  “This latest delivery order brings the total number of boats on order to 84.  To date, 41 RB-S IIs have been delivered to the Coast Guard.”

CB-OTH-IV

“Sixteen Cutter Boat-Over the Horizon-IVs (CB-OTH-IV) and associated parts and logistics information from SAFE Boats International LLC of Bremerton, Wash.  The cost of the order is $6.55 million.”

“Fourteen of the sixteen cutter boats from this order will be assigned to the FRC fleet (two to be used as spares).  Two of the cutter boats will be assigned to the NSC fleet.”

“Under the current contract, up to 101 OTH-IV cutter boats may be ordered over a seven year period.  The Coast Guard may order up to 71 boats, and the contract includes up to 10 boats for the U.S. Navy and up to 20 boats for Customs and Border Protection.  The contract has a cost ceiling of $58.9 million. “

CG Help for Bangladesh Navy

DefenseMediaNetwork has taken the occasion of the transfer of the former USCGC Jarvis (WHEC-725) to review the progress of the Bangladesh navy (BN). In addition to Jarvis the USCG is expected to transfer another 378 and

“…the USCG has been steadily delivering significant quantities of small craft – primarily 16 Safeboat Defenders and 20 Metal Shark Defiants, with more than 30 such craft delivered to date. Deliveries of Defiants are ongoing under the USCG Security Assistance Program.  Most of these craft are used by the naval Special Warfare and Diving and Salvage (SWADS) although a few have gone to the Bangladesh Coast Guard.”

Given what Bangladesh has done with their former British Castle Class OPVs (discussed at the end of the article), we may expect that the former cutters will soon be equipped with Chinese made sensors and weapons including anti-ship cruise missiles.