Author Archives: Chuck Hill

Ports, Waterways, and Coastal Security–Russian Style

Posted on by
Reply

NavyRecognition is reporting a Project 21980 Grachonok-class anti-commando boat of the Black Sea Fleet, the Yunarmeyets Kryma, has joined the Russian Navy’s standing naval force in the Mediterranean (Presumably in Syria).

The Yunarmeyets Kryma is a special boat built by the Zelenodolsk Shipyard in 2014. The Vympel Design Bureau in Nizhny Novgorod had developed the class to guard water areas and fight enemy naval commandos in the waters of naval bases and on close approaches to them. The boats in the class carry heavy machineguns, antidiver grenade launchers and man-portable air defense systems. Their radio electronics allow searching for underwater objects – both static and moving – while their diving system allows several divers to dive simultaneously.

It looks like a WPB so I looked up the class. They are 138 tons, 102 ft (31 m) in length, 23 knots, and a crew of eight. The Russians have built twelve and are building ten more.

Described as being anti-saboteur and anti-commando boats these are in intended for “force protection” which is included in the Coast Guard’s Ports, Waterways, and Coastal Security mission (PWCS). It is also one of the missions of the new US Navy MK VI patrol boat. We have detachments at Bangor and Kings Bay to protect Fleet Ballistic Missile subs while in transit that also perform this function.

Despite the similarities in mission, the Russian boat is armed and equipped much differently from their USN and USCG counterparts. It has a couple of sonars. In addition to a 14.5 mm (.60 cal.) machine gun, they have point defense anti-air missiles. Defense against swimmers is apparently much on their mind. They have two anti-swimmer weapon systems, the DP-64 a shoulder fired mini-depth charge thrower and the DP-65, a ten barrel, automated, sonar controlled mini-depth charge thrower.

File:DP-64.png

DP-64 anti-swimmer grenade launcher. Artist: Jason Biggs

“The 55mm DP-65 remotely controlled…grenade launching system is designed for protection of ships against attacks of underwater combat swimmers at external roadstead open anchor stops and bases, for protection against attacks of underwater combat swimmers at water-development works, sea platforms and other important sea and coastal installations.”

The US had a lot of trouble with Viet Cong combat swimmers during the Vietnam war. They even manage to sink a small WWII built aircraft carrier (CVE) being used as an aircraft transport. It is unclear how well prepared we are for this type of attack now.

Hybrid Propulsion News Release

Posted on by
4

We have a news release on the electric portion of the Offshore Patrol Cutter’s hybrid propulsion system. There is not a lot of specifics about the system, but it does provide a rationale for installation of this additional system in a ship that above all else is designed to be “affordable.” The news release is quoted in full below.

ARLINGTON, VA, April 13, 2017 ̶Leonardo DRS, Inc. announced today that it has been awarded a contract by Eastern Shipbuilding to provide hybrid electric drive systems for the U.S. Coast Guard’s new fleet of Offshore Patrol Cutters. The contract, for the first nine systems, is worth $10.7 million. Eastern Shipbuilding is the prime contractor and builder of these nextgeneration Offshore Patrol Cutters.

Under the contract, Leonardo DRS will provide its high-performance, permanent magnet motorbased Auxiliary Propulsion System. This integrated hybrid electric drive system provides capability for the ship to operate much more efficiently at slower speeds, increases mission duration capability, reduces emissions and provides emergency take-home capability in the event of a failure of the main propulsion diesel engines. When coupled to the main propulsion gearbox, the system allows the ship to operate quietly and efficiently during loitering operations while providing superior fuel economy for increased on-station operations and capability.

“DRS is a pioneer in naval hybrid electric drive technologies and we are proud to be able to deliver these advanced systems to the Coast Guard’s newest generation of ships,” said Dianne Howells, Vice President of Leonardo DRS Surface Ships business unit. “Our Auxiliary Propulsion Systems will give the crews of these new ships operational flexibility when they need it, while significantly increasing cost savings in yearly maintenance and fuel.”

The Auxiliary Propulsion System is designed and built by Leonardo DRS, a leader in naval hybrid electric drive propulsion technology. The system includes two of the most power-dense permanent magnet motors on the market today. They have significant advantages in size, weight, efficiency and performance over conventional electric induction motors and produce more torque from the same amount of supplied current. Their smaller footprint allows greater flexibility in engine room design and increased cargo space, and their simpler more rugged construction results in proven reliability and durability.

Using propulsion diesel engines at slow speeds adds significant wear and tear on the engines and increases the potential for coking/wet stacking. By adding this electric Auxiliary Propulsion System, the Coast Guard will have a built-in advantage of reducing not only fuel and maintenance requirements, but total lifecycle costs and increased safety for the fleet.

About Leonardo DRS Leonardo DRS is a prime contractor, leading technology innovator and supplier of integrated products, services and support to military forces, intelligence agencies and prime contractors worldwide. The company specializes in naval and maritime systems, ground combat mission command and network computing, global satellite communications and network infrastructure, avionics systems, and intelligence and security solutions. Additionally, DRS builds power systems and electro-optical/infrared systems for a wide range of commercial customers. Headquartered in Arlington, Virginia, DRS is a wholly owned subsidiary of Leonardo S.p.A., which employs more than 47,000 people worldwide. See the full range of capabilities at http://www.drs.com and on Twitter @drstechnologies. For additional information please contact: Michael Mount Senior Director, Public Affairs 571-447-4624 mmount@drs.com Twitter: @drstechnologies

Fincantieri’s Icebreaker Design Team Emerges

Posted on by
4

Photo: VARD designed icebreaking supply vessel for Chile. 

MarineLog is reporting, “APRIL 6, 2017—Philly Shipyard, Philadelphia, PA, is teaming with Fincantieri Marine Group (FMG) to compete for the detail design and construction of the next generation heavy polar icebreaker for the United States Coast Guard (USCG).”

“Over the next year, FMG and Philly Shipyard, along with the naval architecture and marine engineering firm, Vard, will develop a baseline icebreaker design, cost estimate and project schedule and then refine them based on the results of the technical studies and corresponding feedback from the USCG.”

This is in response to a contracted awarded to five shipbuilders on Feb. 22, 2017, for preliminary design studies and analysis. Contracts were awarded to Bollinger Shipyards, LLC, Lockport, LA; Fincantieri Marine Group, LLC, Washington, DC; General Dynamics/National Steel and Shipbuilding Company, San Diego, CA; Huntington Ingalls, Inc., Pascagoula, MS; and VT Halter Marine, Inc., Pascagoula, MS, totalling approximately $20M.

Fincantieri is building a 9000 ton research icebreaker for Norway and Vard has designed an icebreaking supply vessel for Chile.

“Best Cutters of the Best Coast Guard”–Claw of Knowledge

Posted on by
Reply

I’ve mentioned the “Claw of Knowledge” before, here and here. Now this Coastie blogger with a light touch is working on his second book and is asking for help in the form of a “kick starter.” The book, “The Best Cutters of the Best Coast Guard,” will tell the story of thirteen cutters. So far we know these will include Bear, Eagle, Northland, Storis, Point Welcome, and Campbell.

Here is his recent story on Point Welcome.

 

WWI Centenial–Coast Guard Compass

Posted on by
1

 

 

The Coast Guard Compass has begun the first of a series on the Coast Guard in World War I.

The war cemented the service’s role as a military agency. Nearly 9,000 Coast Guard men and women would participate in the war. This number included over 200 Coast Guard officers, many of whom served as warship commanders, troop ship captains, training camp commandants and naval air station commanders. In all, Coast Guard heroes received two Distinguished Service Medals, eight Gold Lifesaving Medals, almost a dozen foreign honors and nearly 50 Navy Cross Medals, dozens more than were awarded to Coast Guardsmen in World War II.

Looks like it might be interesting.

Admiral Papp Interviewed–OPC/Inland AtonN/Budget

Posted on by
Reply

–

Former Commandant, Admiral Papp, has been at the Sea-Air-Space EXPO representing Eastern Shipbuilding. He has given a couple of interviews, the one above and a second one here.

Of the two, I think the one you can view above is by far the more interesting, and his comments were not limited to the Offshore Patrol Cutter, discussing the inland tender fleet and the CG budget in general as well. There were a couple of notable details in the interview.

Admiral Papp stated explicitly that the expected crew size for the OPC would be 126 (I suspect this might actually refer to the planned accommodations rather than the crew). That is considerably more than the crew of the WMECs they replace. These ships are actually a third again larger than the 378s and much more capable than the ships they replace, so this should not be a great surprise. I do think this is more than the nominal crew of the National Security Cutter, although probably less than they actually sail with.

He also stated that the electric motors in the hybrid propulsion system would be good for at least nine and perhaps as much as 13 knots. All along I had assumed the hybrid system had been adopted as a means of meeting the range requirement, but since it is apparent they do not expect to be able to reach 14 knots using the electric motors, then the claimed range of 10,200 miles at 14 knots must be achievable using the Main Propulsion diesels. This suggest the range at lower speeds using only the ship’s service generators and electric motors may actually be considerably more.

Admiral Papp also suggested that there may be a possibility of exporting Eastern built ships because of its projected cost, well under $350M per ship.

Thanks to Luke for bringing this to my attention.