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Dedicated to Ken Spaulding, long time IHS leader who was the guiding spirit in bringing this Hydrofoil Museum to life. He passed away on 27 Nov 2009 shortly after launching the Museum.

The International Hydrofoil Society (IHS) is an all volunteer, not-for-profit organization of and for people who design, build, operate, or simply are interested in commercial, military, research, or recreational hydrofoils of any size... power (including human power!) or sail. Other sites are beautiful, but this site is fast, lean, and totally devoted to hydrofoils. Every page, every word, on the IHS site has been created by hand through the contributions of our members and the people who correspond with us. You too can participate, whether you are a member or not.

To navigate the IHS site, simply click on any topic listed above in the Site Directory.

The date of last revision is shown in red after each topic. ( August 10, 2016 ) This site is free and open to all.

Scroll down and search the site with the Search Engine below to find what you want, or... click, explore, and enjoy!



Last updated August 10, 2016



Announcements and Current Events

The International Hydrofoil Society (“IHS”)

IHS Mandles Prize for Hydrofoil Excellence

Announcement of Awards - August 5, 2016

Congratulations to This Year’s Winners

Here are the final results:


First Prize (one at $2,500 in total):   


A Fluid Structure Interaction Analysis of Vertical-Lift-Producing Daggerboards” 

By:  Casey Brown and Cody Stansky 

Webb Institute – Glen Cove, New York 

Faculty Adviser:  Dr. Adrian Onas        


Honorable Mention Awards (maximum of two at $1,000 each in total):  


On the Design and Manufacturing Choices to Obtain a Stable Canard Hydrofoil System for a Low Speed Solar Boat” 

By:  Elijah Thompson, Caleb Tanner, Caleb Jacobson, Kevin Harmon, John Hopkins and Kyle Mary 

Cedarville University – Cedarville, Ohio                                                                    

Faculty Adviser:  Prof. Timothy Dewhurst     


Parametric Optimization of a Kiteboarding Hydrofoil Using Computational Fluid Dynamics” 

By:  Zachary Backas 

Webb Institute – Glen Cove, New York 

Faculty Adviser:  Dr. Adrian Onas 


Cleck Here for all the details on this year’s competition: 



Multi-Agency Craft Conference (MACC)

June 8-9, 2016 United States Coast Guard Yard, Baltimore, MD

The Multi-Agency Craft Conference (MACC) is an open forum for the exchange of operational and technical information on small boats and craft between Government agencies and the maritime community. The American Society of Naval Engineers (ASNE) is proud to announce that MACC 2016 will be held at the United States Coast Guard Yard in Baltimore, MD. The USCG venue allows us to broaden the community reach of those looking to acquire small craft and high speed boats. As with previous MACCs, the exhibit tent will feature 100+ booths, live in-water boat demos, static displays, technical sessions, and high-level keynotes and panel presentations. We are extremely excited since this venue not only allows us the opportunity to incorporate panel & technical session rooms within the exhibit tent, but also provides ample outdoor pavilion space for the evening’s networking Coastal Social and close walking proximity to the in-water boat demos.

Since its founding in 1998, MACC has served as a primary venue for leveraging knowledge and lessons-learned across multiple Government agencies that develop, procure, or operate small boats and craft. Previous conferences have covered a broad range of topics including: requirements generation, boat and craft design, acquisition processes, maintenance and repair practices, logistics and training, and new technology development and integration. The shared information results in effective use of resources, opportunities for collaboration, a more knowledgeable industry-base, and best-value small boats and craft for all end-user communities.

Use code MACC-IHS to receive 10% off standard non-member ASNE rates.

Exhibit space for MACC 2016 is currently sold out. If you are interested in being placed on the waitlist, please email Mike Huling at






Tuesday, 26 April 2016

Army Navy Country Club, Arlington, VA

5:30 to 6:30 Cash Bar - 6:30 to 7:30 Dinner - 7:30 to 8:30 Program

Romaine salad
Grilled marinated chicken paillard with saffron cous cous and broccolini
Deep dish apple pie, Coffee & tea

Price: $35.00

To pay online, by 22 April, go to

Make reservations by 4:00 Friday, 22 April
with Joel Billingsley at or Allen Ford at

Please honor reservations. No-shows may be requested to cover costs incurred.

While navies around the world no longer have operational hydrofoils, these craft are regularly
employed commercially and recreationally, most dramatically in the latest America's Cup
competitions. Interest is especially strong and growing in the "informal sector" of the maritime
world, where individual researchers and builders are developing hydrofoils in a wide range of
configurations, as an internet search will quickly reveal. The innovations are exciting, and
performance records are often broken.

Ray Vellinga is a noted figure in that world. In the late 1960s, after receiving training in
aerodynamics, he began trying to make things fly, first in aviation but then with hydrofoils. An
early attempt to make a business of it convinced him that would be financially uncertain, and he
pursued a successful career in industrial real estate development instead. But then he went back to
hydrofoils with complete freedom to create and innovate. The result has been a series of small
hydrofoil craft plus his well-received book, Hydrofoils: Design, Build, Fly, which shows that
typical enthusiasts can actually be hydrofoil creators and flyers.

Ray will show videos and photos of many different small hydrofoil designs, including his own but
also from other developers, and discuss their features and performance. He will also show some
larger craft that originated in this informal sector, including the AC72 America's Cup racers.
After graduating from Bradley University in business Ray entered pilot training with the US Navy
and was at the top of his class studying aerodynamics in preparation for a year of pilot training in
T-28s and T-34s. He left the Navy as a Lieutenant and received his commercial and instrument
rating as a civilian pilot. He has flown or created numerous human-powered, motor-driven, and
wind-powered small hydrofoils. Ray is currently an owner of the Gig Harbor Marina in
Washington ( and a member of the Board of Directors of the
International Hydrofoil Society.




log1IHS Mandles Prize


News Flash!
Extension of 2016 Mandles Prize Deadlines!

In order to allow for greater participation in the Mandles Prize competition for 2016, the deadline for applications has been extended to May 1st and the deadline for submissions has been extended to June 1st, with winner(s) to be announced by August 15th. Please pass this information to colleagues and students in your contact list. All other aspects of the Rules remain the same.


------ Announcement ------

1 November 2015

International Hydrofoil Society (IHS)
Mandles Prize for Hydrofoil Excellence - 2016

The International Hydrofoil Society is pleased to announce that
thanks to the generosity of Mr. Martinn Mandles, a long-time member
of IHS and his wife Connie, IHS will once again sponsor the Mandles
Prize for Hydrofoil Excellence competition. The competition includes
up to $4,500 a year in IHS hydrofoil achievement prizes for students,
with a $2,500 First Prize and up to two $1,000 Honorable Mention

In order to open the competition to a wider spectrum of qualified
entries, submissions by students based on work completed since
2011 will be eligible for the Mandles Prize. The Due Date for Entry
Forms is March 15, 2016.

This is an outstanding opportunity for the next generation of hydrofoil
developers to be acknowledged for their efforts to advance the state
of the art in hydrofoil and hydrofoil-assisted craft engineering, design
and construction. Background on the Mandles Prize and Rules for
the competition can be downloaded from the IHS website

Based on the 2015 entries, we anticipate a very exciting competition
and look forward to receiving many high-quality entries

Questions on the Mandles Prize can be e-mailed to:

Click here for a PDF download of the above Announcement.

Mark R. Bebar
President - IHS


3 February 2016:


Topic: "The Quadrimaran": Four identical wedge-shaped planing hulls
William Hockberger: Chair of SNAME SD-5 & a Naval Architect and Independent Consultant








Presentation Posted from JOINT IHS/SD-5 DINNER MEETING:

Topic: Joint High Speed Vessel (JHSV) Design & Delivery Update on 13 August 2015 at IHS/SD5 Joint Dinner Meeting
Stephen L. Kantz: NAVSEA Ship Design Manager

The most recent Joint Dinner meeting with SNAME SD-5 Panel was held 13 AUGUST 2015 at the Army-Navy Country Club in Arlington,VA.

Stephen L. Kantz: NAVSEA Ship Design Manager, made an excellent presentation on "Joint High Speed Vessel (JHSV) Design & Delivery Update".

Topic: Joint High Speed Vessel (JHSV) Design & Delivery Update on 13 August 2015 at IHS/SD5 Joint Dinner Meeting
Stephen L. Kantz: NAVSEA Ship Design Manager

A copy of his presentation and a short video can be seen and downloaded here. Click


Presentation Posted from JOINT IHS/SD-5 DINNER MEETING:

"Topic: Ship to Shore Connector (SSC) Design Development /Evolution" - 7 May 2015

The most recent Joint Dinner meeting with SNAME SD-5 Panel was held 7 May 2015 at the Army-Navy Country Club in Arlington,VA with a maximum capacity attendance of 70 people.Jay Howell: CSC Advanced Marine Center, made an excellent presentation on "Ship to Shore Connector (SSC) Design Development /Evolution". Fully amphibious LCACs (Landing Craft, Air Cushion) were first delivered in December 1984 with a 60 short ton capacity and an expected service life of 20 years; 91 were acquired. In October 2006 the Navy formally commenced the SSC program to provide a functional LCAC replacement with the same “footprint”, a 74 short ton capacity, increased range, a 30 year service life, and improved reliability and maintainability. A significant design effort was applied to
addressing the “Top 25” LCAC maintenance items, and the Navy employed a Set-Based Design process to optimize the selection of systems for the SSC. The Technology Readiness Assessment process was rigorously applied to ensure new technologies included would be fully ready. Mr. Howell discused some of the aspects of the early stage design development and how the SSC has evolved from the LCAC and answered many questions from those present.

A copy of his presentation can be downloaded here. Click




IHS Mandles Prize:

IHS Mandles Prize for Hydrofoil Excellence


Announcement of Awards

By Mark R. Bebar, President – IHS

August 1, 2015




The International Hydrofoil Society (“The IHS”) has been conducting a competition for the Mandles Prize for Hydrofoil Excellence.  For a second year, Mr. Martinn Mandles, a long-time member of IHS and his wife Connie have generously provided up to $5,000 in IHS hydrofoil technology achievement prizes for students.  The competition includes a $2,500 First Prize and up to two $1,000 Honorable Mention awards.  Background on the Mandles Prize and rules for the competition are at:


The Mandles Prize competition is an outstanding opportunity for the next generation of hydrofoil developers to be acknowledged for their achievements in advancing the state of the art in hydrofoil and hydrofoil-assisted craft technology and design.


We received six entries this cycle for the Mandles Prize, reflecting a wide range of hydrofoil-related technical investigations and assembled an outstanding panel of judges to review them.  I am pleased to announce the results of the competition and congratulate the winning students and their faculty advisers for their outstanding work.  The Mandles Prize awards for 2015 are as follows:


First Prize

A Multiphase RANSE-Based Computational Tool for the Analysis of Supercavitating Hydrofoils” Click Title to Download

by Luca Bonfiglio

University of Genoa, Genoa, Italy / Visiting PhD student at Massachusetts Institute of Technology, Mechanical Engineering Department, Cambridge, Massachusetts

Faculty Adviser:  Prof. Stefano Brizzolara


Honorable Mention Awards:  

A Comparative Analysis of Low-Aspect-Ratio Conventional and Single-Slotted Circulation Control Foils Intended for Marine Hydrodynamic Applications

by Sam Granger and Randall Neureuter  

Webb Institute                                                                           

Faculty Adviser:  Prof. Richard A. Royce 


Design, Construction, and Testing of a Hydrofoil Rowing Shell

by Lily Van Steenberg  

United States Naval Academy                                                                                                    

Faculty Adviser:  Prof. Gregory White


We thank all the competitors and their advisers for their interest in hydrofoil technology and their truly excellent work.

Thanks also to our judges for contributing their personal time and expertise in evaluating the entries.  All of you have made this second Mandles Prize cycle a resounding success!


Mark R. Bebar
President, International Hydrofoil Society



Presentation Posted from JOINT IHS/SD-5 DINNER MEETING:

"Advanced Marine Vehicles Opportunities in Unmanned Maritime Systems" - 5 February 2015

The most recent Joint Dinner meeting with SNAME SD-5 Panel was held 5 February 2015 at the Army-Navy Country Club in Arlington,VA with a maximum capacity attendance of 70 people. Mr. Michael Bosworth, PEO LCS Science and Technology Advisor, made an excellent presentation on "Advanced Marine Vehicles Opportunities in Unmanned Maritime Systems". Unmanned Surface Vehicles (USVs) and Unmanned Underwater Vehicles (UUVs) are less developed and less transitioned than Unmanned Air Vehicles (UAV), with energy and autonomy/communications issues to overcome, respectively. But unmanned maritime systems (UMS) represent a grand opportunity for AMV concepts, if they can translate from manned concepts to smaller unmanned concepts. Mr. Bosworth discussed some emerging UMS missions and needs and opportunities and then led a short discussion on this emerging technology development.

A copy of his presentation can be downloaded here. Click



A copy of an original PHM Brochure has been donated to IHS and is available for viewing and downloading.

(Click here to see our PHM Archives and download the Brochure)









Our last JOINT DINNER MEETING of SNAME SD-5 PANEL AND INTERNATIONAL HYDROFOIL SOCIETY was held Thursday, 16 October 2014. The Topic was: "50 Years of Hovercraft in the USA Put into Perspective".
The Speaker: Warwick Jacobs, Trustee, the Hovercraft Museum has kindly made the presentation available for our members who could not attend.

(Click here to see our collection of IHS/SD5 meeting presentations)


[1 August 15]

log1 Barney Black, Past IHS Board Member and IHS Web Site, IHS Newsletters and IHS Blog Publisher

It is with great sadness that I report that long-time IHS member Barney Black passed away on 29 July from complications related to ALS. Barney was honored by IHS in 2001 for his outstanding contributions over many years to the Society's communications efforts, specifically for setting up the IHS Website, Electronic Blogs and Newsletter publications. He also served for a number of years on the Board of Directors.

Barney had an unusually varied and multi-disciplinary career in the marine industry. He earned the unusual degree of B.S. in Humanities and Engineering from MIT in 1971.

He provided equipment, maintenance, and training to Navy, municipal, and civilian divers and fire fighters; worked in the SSN-688 Class Advanced Design Project Office at the Newport News Shipbuilding and Dry Dock Company; served as a consulting engineer to the Naval Sea Systems Command in Arlington, VA, supporting various design and modernization projects in mine countermeasures; provided logistic support for the PHM Class hydrofoils; and was a Senior Principal Engineer at TRW.

More recently, Barney was a Senior Logistics Management Specialist on the US Coast Guard's Deepwater Project. Barney Black will be greatly missed by all who were privileged to know him and our prayers are with his family.

Mark R. Bebar

President, IHS

A more detailed Memorial to Barney can be found here: In memorium IHS Past Board Member Barney Black.



11 April 2014


log1 John R. Meyer Jr.


To all Members of IHS,


It is with regret and sadness that I pass along the news of John Meyer’s death.  John had been battling cancer and was recently in the hospital for treatment.  He elected to return home on 10 April and passed away on 11 April 2014.  

The Memorial will take place on Saturday 17th of May 2014 at 3:30 pm in the Pilgrim Lutheran Church - German Lutheran Church Washington DC - is renting from them. 5500 Massachusetts Avenue, Bethesda, Maryland 20816

Please keep John's wife, Gigi and his sons, Kurt and Craig, in your thoughts and prayers.

Mark R. Bebar

President, IHS

A more detailed Memorial to John can be found here: In memorium IHS Past President, John R. Meyer Jr.

John R. Meyer's Bio




To All IHS Members:

The IHS has embarked on a wide range of initiatives aimed at increasing awareness of hydrofoil and hydrofoil related technology developments around the world. The Board has had lengthy discussions and concluded that it is critical to involve the membership to accomplish these objectives. There is simply too much work to be done to rely totally on the Board members. I am writing to encourage and solicit your active involvement in the work of the Society.

Specifically, we need assistance in the following areas:

- Newsletter – preparing articles and editing

- Mandles Prize – Judging

- Website – assistance to the Webmaster including responding to posted messages.

- Treasurer – assistance to the Treasurer and Membership Committee.

- Program – assistance in identifying guest speakers for IHS/ SNAME Panel SD-5 Joint Dinner Meetings

- Tacoma Maritime Fest (24 – 25 Aug 2013) and other future meetings/conferences– Staffing the booth

- Navy Hydrofoil Reunion in Key West (20 – 23 Sept 2013) – register to attend.

- Permanent Hydrofoil Exhibit at Washington Navy Yard Museum – assistance/lead in developing the exhibit

- Phanfare Photo Site on IHS website – assistance in posting photos or editing/describing the content.

- Collection/compilation/indexing of hydrofoil (and other AMV) technical papers and data.

Many of these support activities can be done at home over the internet or phone and can be at any level of engagement that volunteers are willing and able to provide, either one-off or ongoing. I urge all of you to consider where you might help in furthering these efforts. Please contact me at: if you’re interested.


Mark R. Bebar – President, IHS





log1 Reunion

September 2013 Navy Hydrofoil Reunion:

The IHS and PHM MSLG Joint Navy Hydrofoil Reunion was held from 20-23 Sept. 2013 in Key West Fla.

Approximately 150 Navy Hydrofoilers and their friends had a great time.




Meeting Presentations


Sustaining Members are corporations, companies institutions and other organizations who wish to support the work of the Society.


Island Engineering, formed in 1999, is dedicated to design and engineering support of high performance marine vehicles - primarily for the development of advanced ride control systems.

Island Engineering is one of a very few companies that specialize in providing the stabilization and motion control that a ship or craft requires in order to be able to accomplish its purposes.  That may involve ensuring a ship-launched weapon will hit its target, or a helicopter or Rigid Hull Inflatable Boat can be deployed safely, or a yacht owner's martini won't spill.  Requirements and solutions can vary widely from one case to the next, and Island Engineering has dealt with a wide variety of ships, craft and equipment involved in such solutions. Island Engineering handles all aspects of this work, from basic analysis to design and engineering, all the way to fabrication and shipboard installation of stabilization systems. 

Moreover, the company is well known for its ability and willingness to tackle all manner of unusual and challenging engineering projects.

MAPC_LOGO Maritime Applied Physics Corporation (MAPC) provides a mix of scientists, engineers, naval architects and technicians who are motivated to move ideas from concept through design and prototype.
NAID SUS NAIAD DYNAMICS Naiad Dynamics world leader in ship motion solutions is the fusion of the legendary Stabilizer and Ride Control System manufacturers Naiad Marine Systems, Maritime Dynamics, Vosper Motion Control, Vosper Stabilizers, VT Marine Products and Koopnautic Holland.



The IHS Subject Archives have been all updated to include all 2005 discussions from the IHS Bulletin Board as of 20 Aug 2006. The Discussion Forums


On-Line (BBS) should be used for all current Discussions.

New!!! Even More Advanced Marine Vehicles (AMVs) CD Data Available. Nov 2007 IHS announces the Fourth Advanced Marine Vehicle (AMV) CD-ROM in its series of reference and historical AMV document releases. The new CD has 74 documents:

Click Here to download a Table of Contents.

  • Thirtyfive Documents on Hydrofoils
  • Twent one Documents Applicable to Multiple AMV Types
  • Ten Documents on Air Cushion Vehicles (ACVs) and Surface Effect Ships (SESes)
  • Three on SWATHs
  • Six Documents on Planing Mono and Multi-Hulls

Want details? Click Here to view a Table of Contents and abstracts for each document on the CD. Cost is only US$12.00 for IHS members; US$15.00 for nonmembers. This includes postage worldwide. IHS accepts payment by personal check, bank check, money order or cash (all in US dollars only).We have also arranged for payment by credit card (online only!).

Note: AMV CD-ROM #1, #2 and #3 the first three CDs in this series, are still available for sale.

Click Here for ordering instructions.

ALSO New!!! ALL Back-issues of IHS NEWSLETTERS (1978-2013) Available. IHS announces the consolidation and indexing of all IHS NEWSLETTERS onto a CD.

  • 1852+ articles on all the hydrofoil news for the last twenty five years

Want details? Click Here for an Index and abstracts for each document on the CD. Cost is only US$12.00 for IHS members; US$15.00 for nonmembers. This includes postage worldwide. IHS accepts payment by personal check, bank check, money order or cash (all in US dollars only).We have also arranged for payment by credit card (online only!).

Note: The current and just past issues are always available to IHS Memebers for immediate download at this page.

Click Here for ordering instructions.


Second Quarter 2015 Newsletter

Electronic Copy in Adobe Acrobat format available NOW to members in good standing. Click Here.

  • Free Sample Newsletter -- Electronic Copy (400K)... The Password is shipofthefuture. Read it on screen or print it out with free Adobe Acrobat Reader Software available below (Acrobat Reader version 9.0 or higher required) Hint: zoom to 130% for easier reading!
  • Free Sample Newsletter -- Hard Copy By Mail... Include POSTAL address with your request!
  • For an index of past newsletter articles, Click here (This is a Microsoft Excel file)
  • Past IHS Newsletters CD -- A new CD with all past IHS Newsletters since 1978 through to 2008, has been collected into one convienient CD with 1852+ seperate news articles is now available for $12.00 IHS Member Price, postpaid price or $15.00 Non-Member Price, postpaid price, postpaid worldwide.

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