“Coast Guard Seeks Information to Support Over The Horizon Cutter Boats” –CG-9

BM2 Dale Veverka, a boatswains mate, Seaman George Degener, and MK2 Joshua Post  conduct maneuvers on the Coast Guard Cutter Northland’s “over-the-horizon” small boat during transit to Rio De Janeiro, Brazil, April 9, 2008. for UNITAS exercise. U.S. Coast Guard photo by PA2 Nathan Henise.

The following is a release from the Acquisition Directorate (CG-9)  Apparently they plan to procure a fifth generation over the horizon cutter boat.

The Coast Guard released a request for information (RFI) Dec. 7 to gather information in preparation for the Over the Horizon V cutter boat acquisition.

The planned vessel is a standard configuration boat up to 26 feet long, which is capable of performing missions that require projection of Coast Guard capabilities beyond the parent cutter. It will operate in day and night; in a spectrum of climates, weather conditions and sea states.

The anticipated scope of the contract is near 200 boats delivered over a 10-year-period.

The RFI is available here. The deadline to submit responses is Dec. 14 at 12 p.m. EST.

For more information: Cutter Boats program page   

This is probably the answer to a comment question on an earlier post about a new 7 meter RHIB, that ask what boat would be used on the Offshore Patrol Cutter (OPC).

From the RFI:

Approximate OTH-V Characteristics:
Length: 26 feet (maximum extreme dimensions)
Beam: 9.0 feet (maximum extreme dimensions)
Weight: ~7500 lbs (full fuel, no personnel)
Navigation: Scalable Integrated Navigation System-2 with radar
Seating: Shock Mitigating for five, designated for eight additional
Stability: ISO 12217-1
Structure: ISO 12215-5
Propulsion: Diesel Engine with Waterjet propulsion
Top Speed: 40 knots
Range: 200 NM (with 10% fuel reserve)
Interface: Dual Point Davit, Single Point Davit with Sling, Stern Notch

3 thoughts on ““Coast Guard Seeks Information to Support Over The Horizon Cutter Boats” –CG-9

  1. Still leaves me scratching my head a bit. What will the boat-mix be for the OPC? CB-L & OTH-V? Two OTH-Vs? Is the up-size of the OPC going to allow a LRI aboard?

    • That is a good question. The illustrations appear to show three boats all of the same size, one on each of the two davits port and starboard, and a third on the top of the superstructure between the davits that could presumably be moved down to the davits. I’m guessing all three would be OTH-V, but perhaps there is room for a Long Range Interceptor, assuming it is launchable by davit.

  2. OTH-V Presentation – Industry Questions & Answers International Work Boat Conference – New Orleans, LA. 29 November, 2018

    The following questions were posed concerning the OTH-V. 1) Question: Can the weight restriction be opened up to gain service life? Answer: No. Weight will be limited by davit capacity restrictions and cutter stability constraints.

    2) Question: Is it cost effective to increase the weight limit of current davits? Answer: As davits are replaced we are seeing increased weight handling capacity. The OTH-V weight is limited by the lowest weight handling davit that it needs to be deployed with, and by the stability requirements of the parent cutters, many of which are weight sensitive.

    3) Question: Could lowering the speed of the OTH-V be an offset; meaning a smaller engine and less weight? Answer: There is discussion of lowering the speed requirement and it is being explored, but initial indications are it is unlikely to be implemented.

    4) Question: What is the purpose of having a set speed requirement? Answer: The OTH-V is expected to have a 40 knot at Sea State 0 and be able to survive in Sea State 6 requirement. Neither of these represent the highest stress operating point. The max stress is most likely imposed by a mid-point speed, in a midpoint sea state (18 knots at 4 foot significant wave height – for example). We are working to require this highest stress operating point as the design point for the boat.

    5) Question: What about using accelerometers to monitor and record G-Forces? Answer: The Navy’s Naval Surface Warfare, Combatant Craft Division out of Little Creek has worked with the Coast Guard in capturing boat accelerations in a variety of sea states. The data is not releasable yet, but if we get it released it will provide objective data on accelerations for boats in the size range of the OTH-V. The data collected showed vertical accelerations as we would have expected, although I was personally surprised at the longitudinal forces measured – which I suspect are a large part of what is causing damage on our boats.

    6) Question: Will accelerometers be included as a specification? Answer: We are looking to see if there is a way to require an indicator that will provide the coxswain with information on the impacts the boat is seeing with ranges indicating safe to operate, area of concern, and continue only if mission demands require maintaining speed.

    7) Question: Could industry tie accelerometers to a “black box” or to warranty claims? Answer: The idea of a ‘black box’ that captures info is something being considered, but real time transmission is not an option due to cyber resiliency/security issues.


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