The NEWSLETTER International Hydrofoil Society P. O. Box 51, Cabin John MD 20818 USA Editor: John R. Meyer SPRING 2000 Publisher: Barney C. Black NEW MAGAZINE IN HALTER MARINE INSTALLS FOILS CYBERSPACE ON E-CAT CATAMARAN Classic Fast Ferries is a free new virtual magazine with lots of photos. It’s at (From Fast Ferry International, January-February 2000) http://classicfast-f.homepage.dk. Editor Tim Timoleon introduces the magazine in Letters to the Editor, page 15 inside. evelopment of Halter Marine’s E-Cat project took a significant Dstep forward last year when the prototype was retrofitted with a 2000 DUES ARE DUE pair of foils. Launched in 1998 at the Equitable Shipyard facility in Eastern New Orleans, the catamaran was built to United States Coast Guard Subchapter H rules for vessels over 100 gross tons. IHS Membership is still only US$20 per calendar year (US$2.50 for Two Caterpillar 3516B diesels driving MJP/Bird-Johnson 650 students). Your renewal or new member- waterjets, via Reintjes WVS 930 gearboxes and Centa composite ship is critical. Please remit 2000 dues as shafting, originally gave the vessel a speed of 30-31 knots. The foils, soon as possible. We regret that high bank Halter Marine reports, have increased performance by 6-7 knots at fees make it impractical for IHS to accept the same 95% of maximum continuous engine rating. payment by credit card or a check drawn on a non-US bank, or by other than US Development funds. Overseas members with no easy Referring to the origins of the project, the company says, “The Halter way to send US funds, are advised to send E-Cat was developed specifically to minimize the environmental im- money order to IHS or US Dollars cash. pact of a fast ferry operation. In 1991, Halter recognized the need to INSIDE THIS ISSUE address wake wash, engine emissions, noise, and operational safety. This resulted in the development of a design that featured long, slen- - Welcome New Members ....... p. 2 der, gently curving hulls with a fine entrance. Model test results met or exceeded all expectations. - ADM Zumwalt ...................... p. 4 “In 1994, Halter - Added Foils to Flaps ............. p. 5 Marine was - Interceptor ............................ p. 6 awarded a cost share contract by - Boeing Jetfoils ....................... p. 7 the Advanced - News of Members ................. p. 8 Research Pro- Halter Marine’s E-Cat With A Foil - Sailors Page ......................... p. 10 See Halter Marine, Page 3 - Letters to the Editor ........... p. 13 WELCOME NEW MEMBERS PRESIDENT’S COLUMN Duane C. Ohly - Mr. Ohly is Presi- dent of Island Express Boatlines, LTD., Sandusky Ohio. The com- Just as the Winter 1999-2000 News- Spring 2001. Their fleet of modern pany currently operates 2 high speed letter was in the process of printing 35-knot catamaran ferries will con- ferries, one of which has a foil. The and mailing, we received word that nect points along the Potomac River details of these vessels are provided Admiral Elmo R. Zumwalt, Jr. USN in Virginia and Maryland to points in in the latest editions in several trade (Ret) had passed away. The Admiral the District of Columbia and nearby, publications about Island Rocket II. was keynote speaker at the IHS 25th including the Washington Navy Yard (December 1999 Fast Ferry Interna- Anniversary Celebration and Confer- and the Pentagon. Captain tional, January 2000 Work Boat ence in 1995. A brief biographical Bamberger provided an overview of World). One can visit his web site at: sketch and notes of his talk on that oc- the entire project, tracing the basic www.islandrocket.com. casion are provided on page 4. As studies of commuter market demand Honorary Life Member of the IHS through to the eventual decisions as Derek Chandler - Derek is a senior and a forward-thinking proponent of to the type and number of craft to buy engineering major at Cedarville advanced marine vehicles, he will be and all of the other elements of the College, in Cedarville Ohio. Part of sorely missed by all of us in that com- complete ferry system. He also dis- his senior year is being devoted to munity. cussed the economics of the planned developing a hydrofoil system for a service and alluded to the many prob- solar powered boat, and is trying to The IHS Board of Directors continues lems associated with legal authorities research the “pros and cons” of a to strive toward production of a hy- in the areas to be served. The main fully submerged system versus a drofoil video. Several inquiries with features of the service, the areas to be self-stabilizing design. He found the Discovery and History channels served, the terminal facilities and in- out about the IHS on its website. have been disappointing. James King frastructure improvements being is now pursuing another route and made, and the agreements with gov- Bradford S. Gatenby -Mr. hopes to have positive results soon. ernment authorities that have influ- Gatenby, from South Dartmouth, However, if not, we are interested in enced the company’s planning were Massachusetts is a specialist in me- knowing if any of our IHS members briefly described. chanical devices and worked in that have any contacts in the television field for many years. He has admir- production industry who might have YourSociety continues to make prog- ingly observed hydrofoils operat- an interest in supporting such a ven- ress on the objective to have all of our ing, and with his keen interest in ture, please let us know. members “online” so they can be flying machines, namely ul- contacted by e-mail and also will tra-lights, of which he has 3, he now The IHS and its members in the have the capability to download the intends to have his 18-foot boat fly Washington DC area continue to sup- Newsletter from the IHS website. over the water with the addition of port the quarterly dinner meetings Over 50% of our members accept the surface-piercing foils. held in conjunction with the U.S. Newsletter electronically. This con- Hovercraft Society and the Society of stitutes a considerable savings in Robert Boyle - Bob, from Mt. Naval Architecture and Marine Engi- terms of cost and effort on the part of Clemens, Michigan, is planning the neers Ship Design-5 Panel (Ad- the Board members who are involved construction of a trawler style cata- vanced Marine Vehicles). The talk in in the mailing process. maran early this year. It will be 50 February was on “Potomac RiverJet” feet and 16 tons. He is very much in- given by Captain James Bamberger, John R. Meyer, President terested in the incorporation of hy- and proved to be quite interesting. Po- drofoils on this boat. However, Bob [email protected] tomac RiverJet plans to provide is interested in economy, not speed, Washington commuters a new and as this will be a live-aboard boat. He welcome alternative to their present mentioned that any help from fellow means of transportation starting in IHS members would be appreciated. Page 2 IHS Spring 2000 HALTER MARINE E-CAT low for a minimum of wetted surface, Production Designs high length to beam ratio, and mini- (Continued From Page 1) Halter Marine is currently offering mal transom immersion. In addition single deck, one and a half deck and to physical model testing, HMI con- ject Agency to develop the low wake twin deck versions of the E-Cat pow- ducted a series of CFD predictions to ferry concept into a marketable de- ered by a choice of four propulsion investigate vessel wash characteris- sign and prototype vessel. During the packages. Typically, the single deck tics while varying parameters. performance of this ARPA/Maritech design could be fitted out for 299 pas- contract, research determined the de- “These investigations correlated well sengers. Capacities of the other vari- sign needed to be larger, faster, and to the model tests and indicated that ants are approximately 350 and 400 have more passenger carrying capac- the E-Cat 350 design would meet passengers. ity to meet market demand." The re- even the most stringent wake wash Service speeds are in the range of sulting design, the E-Cat 500, had a criteria. Comfortable with the results, 30-40 knots without foils and 38-48 speed range of 32-40 knots, depend- Halter proceeded with the construc- knots with foils. With a pair of ing on the choice of main engines, tion of a full size E-Cat prototype ves- MTU/Detroit Diesel 16V 4000 M70 when carrying up to 500 passengers. sel. This has performed hundreds of diesels installed, Halter Marine antic- Halter Marine reports, “Model test- hours of testing in varying load con- ipates that figures of 35 knots will be ing was conducted to determine bare ditions, water depths, and sea condi- achieved by a single deck E-Cat with- hull resistance in calm water and in tions.” varying sea states to evaluate out foils and 42 knots by a twin deck seakeeping. These tests were run over Foils version with foils. a range of displacements, trims, and Last year, a foil support system that PANAMA CANAL MILESTONES hull separations to study the effects of “radically improves the resistance varying the parameters. In addition, performance of the E-Cat hull" was preliminary wash data was measured installed on the prototype. Two sub- at model scale to compare to later ccording to the Panama Canal merged foils now span the hulls for- Computational Fluid Dynamics anal- ACommemorative Award Cere- ward and aft. According to the yses. mony Program dated Septem- company, “The resistance of the ber 26, 1979, USS PEGASUS, the US “The results were impressive.