Kaimana Hila Christened by Tulsi Gabbard

The second vessel in the Matson Aloha Class, a sister vessel to Daniel K. Inouye,  was recently christened as Kaimana Hila at Philly Shipyard Inc. by United States Congresswoman Tulsi Gabbard of Hawaii.  This new ship will soon join its sister in the US West Coast to Hawaii trade.  The Aloha Class ships are the largest containerships ever built in the USA and incorporate a number of “green ship technology” features while providing a quick and efficient service for Matson’s customers. 

Herbert Engineering Corp. has been engaged with Matson in an engineering support role since concept development for the Aloha Class began. We are proud to have helped with contract and detailed design review, specialized engineering analysis, and evaluation of design features. HEC also hosted the site supervision/inspection services through the entire construction process at Philly Shipyard Inc.


Concept Development of Large Cryogenic Liquid Transport of High Value Gases

Herbert Engineering Corp of Alameda, CA has been selected by Agility Gas Technology of Park Ridge NJ to develop a ship design concept that will capitalize on Agility’s novel, less expensive yet safer technology to build large atmospheric-pressure cryogenic-liquid chemical transport ships. Specific designs are under development for very large volume liquid ethylene, ethane and propylene transport.

According to Charles Matar, CEO of Agility, "Our choice to engage HEC was an easy one since HEC has vast experience in Naval Architecture and Engineering including the design of Very Large Liquefied Gas Carriers in support of LNG projects.”

Agility Gas Technology’s unique patented technology promises to significantly improve the efficiency and safety of the transportation of High Value Gases.  “We are very happy to be a part of this project supporting Agility Gas with this design development”, added Spencer Schilling, President of HEC.

HEC provides ship design, engineering analysis, and marine consulting services to shipowners, operators, charterers, shipyards, and government agencies worldwide. Our primary area of expertise is in the conceptual, preliminary, and contract design of commercial vessels. We have extensive experience in newbuildings and conversions of tankers, LNG carriers, containerships, break-bulk carriers, and ro-ro’s


Scrubber For Existing Vessels - Retrofit Solutions

Jesse Senkel from Herbert Engineering’s Houston office took part in a panel discussion about “Scrubber for existing vessels – Retrofit solutions”  at the Americas Sulphur Cap 2020 Conference, where he talked about Herbert Engineering’s experience in designing scrubber systems for a variety of different ship types. The discussion was very interesting, touching upon the different aspects of choosing between scrubbers and compliant fuel. If you missed this opportunity, you can meet Jesse at CMA between April 2nd and 4th in Stamford, CT.

Wreck Removal of SE Panthea

HEC Presentation at Salvage & Wreck Asia 2018

HEC Director Rob Tagg will present “Wreck Removal of the SE Panthea” on September 26th at 11:20 am during the Salvage & Wreck Asia 2018 Conference in Singapore. The innovative technical lessons learned will be revealed through a description of the wreck removal based on the SE Panthea’s unique conditions. Matt Zheng of Zhengli Offshore Salvage and Engineering will join him in addressing casualty operation and management for the wreck removal.


The bulk carrier SE Panthea was beached by typhoon Hatto on August 23, 2017 on a small unmanned island in the Pearl River Estuary between Macau and Hong Kong. Initially all pumpable bunkers were removed, followed by the cargo, hatch covers, tween decks, cranes and anchors & chain. The conditions of the hard aground position from beaching at high tide and the typhoon storm surge informed our strategy to separate and remove the wreck by in 9 blocks by 1200 ton floating crane.

After removing the accommodation and engine room sections, we formed a new plan to remove the forebody refloating as a single section. We used a combination of dewatering the intact spaces and pressurizing damaged some double bottom and wing tank spaces, along with additional bow lift from the floating crane.

The forebody was successfully refloated at high tide on January 29th 2018 and was towed to a nearby submersible heavy lift barge for scrapyard transport.

Hope to see you there on the 26th!
Please find links to the conference at:


Services for Ports & Terminals

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In the past 15-20 years, the unprecedented growth in the size of container ships, gas carriers and bulk carriers has put significant strain on port facilities and waterways due to the significant increase in dredging and number of offshore wind farms. HEC has worked on numerous projects to solve navigation challenges and reduce the environmental footprint for ship owners and ports.

Harbor Operability Analysis


Recently, HEC combined 3D ship modeling with a 3D bathymetric model of the local underwater topology of an existing berth to determine if a ship owner’s existing and unbuilt ships would be able to be accommodated. This study cross referenced loading conditions and tidal conditions to determine berthing feasibility. Mooring loads and container crane outreach were also analyzed. Find out more here.

Estimating Emissions

HEC specializes in evaluating all types of hull forms, propulsion plant and fuel options for new ships, and getting existing ships to comply with international and local emission regulations. We have developed a  proprietary tool that evaluates propulsion options, fuel types and boil off gas/reliquefaction capacity for newbuild LNG carriers.

The data, methodology and tools derived from these projects have formed the basis for a number of emissions calculators. One application of a Carbon Footprint Study for the Port of Seattle may be found here.

Another recent application conducted for a US oil major’s strategic research team determined fuel consumption and emissions from bulk shipping considering different import/export terminals, cargo quantity, vessel size, engine and fuel types, exhaust treatment methods and emissions regulations.

A third application has been to supply the Institute for Water Resources of the US Army Corp of Engineers with fuel consumption estimates for a wide range of oceangoing vessels.

Wake Modelling

The Institute for Water Resources (IWR) of the US Army Corp of Engineers evaluates waterway improvements proposed for coastal harbor projects using an advanced suite of techno-economic tools and models.

HEC has provided sample hull lines for a wide range of ship types and sizes and a wake model to the IWR for use in their evaluations.

Other Work

HEC has also carried out other work for ports:

  • Navigational Risk studies - see projects here and case study
  • Terminal studies - such as one for a gravity base LNG receiving terminal
  • A study for OCIMF looking into crane loads associated with hose handling at offshore terminals
  • Cold ironing trials at the Port of Oakland on a containership