SNAME New York Section Hears Paper On SWATH Vessels
A recent monthly meeting of the New York Metropolitan Section of The Society of Naval Architects and Marine Engineers heard a paper titled "Predicting Hydrodynamic Behavior of Small W a t e r p l a n e Area, Twin-Hull (SWATH) Ships." The author was Edward Numata, chief of the Dynamics Division at Davidson Laboratory, Stevens Institute of Technology.
The paper described existing naval and commercial SWATH vessels, and cited the reasons for choosing this type of hull configuration.
It also examined effects of changes in hull form and proportions on smooth-water resistance, and motions in rough water.
Analytical and e x p e r i m e n t al techniques presently available for use in the design process also were discussed. In conclusion, the author presented some relationships for use in predicting resistance and seakeeping behavior in early stages of SWATH design.
The honored guest for the meeting was Harry S. Townsend, who retired from the U.S. Salvage Association, Inc. in 1975. Mr. Townsend was very active in ship research and SNAME activities; he wrote several technical papers and served on various panels.
Other stories from May 1980 issue
Content
- M a r A d W i l l Sponsor C o a l - F i r i n g Seminar page: 4
- Lobster Boat To Be D e s i g n e d By B l a n c ke page: 4
- Kormarine Will Have International Exhibits page: 4
- A m e r i c a n T r a d i n g Asks T i t l e X I For Six Tankers C o s t i n g $ 4 0 8 M i l l i on page: 6
- Halter Delivers Two Large-Capacity Crewboats page: 6
- T r a n s a m e r i c a D e l a v a l, Research-Cottrell Form Joint V e n t u re page: 6
- General Dynamics Christens Its First LNG Carrier Built For U.S. Trade page: 6
- Sembawang Yard To Invest In Construction Of New Floating Dock page: 8
- L i t e r a t u r e A v a i l a b l e On M a r i n e A n d O f f s h o re H y d r a u l i c Equipment page: 8
- S i f c o P r o v i d es O n b o a r d P l a t i n g - L i t e r a t u r e A v a i l a b le page: 8
- Australian Navy Heavy-Lift Ship Launched At Carrington Slipways page: 10
- D e l a w a r e V a l l e y ASNE Discusses Computer M o d e l i n g And Ship Performance page: 10
- Utility Vessel And Tugboat Delivered By Service Machine Group page: 10
- Promotions A nd Retirements At El Paso LNG Company page: 11
- Literature Available On New Decca Loran C Unit page: 11
- Guidance Notes For Coal-Burning Ships Available From Lloyd's page: 11
- Self-Unloading Bulk Carrier Delivered To ASC By Bay Shipbuilding page: 12
- Honeywell-ELAC Names Reimann As Consultant page: 12
- Hillman Changes Name To HBC Barge, Inc. page: 12
- George K. Geiger Joins Bay Shipbuilding Corp. page: 15
- Delaval Will Test Use Of Coal-Derived Fuel page: 15
- Navy Contracts Totaling $203 Million Awarded To Todd Shipyards- Backlog Is $1.5 Billion page: 16
- Halter Delivers Third 110-Foot Supply Vessel To C & E Boat Rental page: 17
- Amsterdam Dry Dock Announces Major Modernization Of Facilities page: 17
- First Of 60-Barge Order Delivered By NABRICO page: 17
- Garlock Introduces Expandable Packing- Literature Available page: 17
- Four Supply Vessels Of New Class Delivered To Tidewater Marine page: 18
- Fourth Crandall Drydock For Belgium Placed In Service page: 18
- Two Executives N a m ed At Mississippi M a r i ne page: 19
- Tacoma B o a t b u i l d i n g Appoints Two N e w M a r k e t i n g Directors page: 19
- N a i k a i Zosen Delivers The P r a n e d y a Pratama page: 19
- Designers & Planners Sold—Names Four To Top M a n a g e m e n t Posts page: 20
- Balehi M a r i n e Delivers Two O f f s h o r e Crewboats page: 20
- Sarex Oil/Water Separators Approved By U.S. Coast Guard —Literature Available page: 20
- Paceco Cranes Delivered To Matson's L.A. Terminal page: 22
- AP L A n d Encinal To Develop Container Terminal In A l a m e da page: 23
- Norshipco To Complete O c e a n Barge For CCT page: 24
- The Shipbuilding Market In The USA page: 24
- Bulletin A v a i l a b l e On Elliott Tube Puller page: 26
- Bethlehem's Sparrows Point Y a r d Gets First Drilling Rig Contract page: 26
- McAllister Brothers Acquires Independent Towing Of Philadelphia page: 27
- N e w York Section SNAME Meeting Discusses Crude Oil Washing Systems page: 27
- L i t e r a t u r e A v a i l a b l e On B u t t e r w o r t h Systems N ew O i l / W a t e r Separators page: 28
- Hudship Reenters Pushboat M a r k et page: 28
- Literature Available On Bomar Deck Hatches page: 28
- Joint Venture Formed By Taylor And Hydrospace page: 28
- Record A t t e n d a n c e At I N A A n n u a l M e e t i ng page: 29
- Six A p p o i n t m e n ts Announced For I n t e r l a k e Steamship page: 29
- Literature Available From Elliott Co. On High-Speed Gears page: 29
- Santa Fe International And Acres Consulting Form Joint Venture page: 31
- New Rust Inhibitor Introduced By Farboil —Literature Available page: 31
- Paceco Awards Contract - P a r t Of $26-Million Expansion At Gulfport page: 31
- G u i d e d - M i s s i l e D D G Christened At Ingalls S h i p b u i l d i n g Y a rd page: 32
- Shaft A l i g n m e n t Was Topic At P h i l a d e l p h i a Section SNAME M e e t i ng page: 34
- Three A p p o i n t m e n t s Announced By R.J. Brown & Associates Firms page: 34
- Westinghouse Gets $ 6 - M i l l i o n Contract For Cruiser Gears page: 36
- W a r r e n T. M y e r s Joins W h i t e h a l l Brokerage page: 36
- Halifax Yard Awards $1.3-Million Contract For Modernization page: 36
- . J . Henry Elected To Norshipco Board page: 36
- Vincent Fiorenza Gets Added Duties At Moore McCormack page: 37
- M a g n a v o x O f f e r s N ew M o n i t o r i n g System — L i t e r a t u r e A v a i l a b le page: 38
- N e w Diesel Introduced By C u m m i n s E n g i n e - L i t e r a t u r e A v a i l a b le page: 38
- $C19.5-Million Modernization Under Way At Halifax Shipyards page: 38
- Student Paper Presented At SNAME Chesapeake Section page: 38
- T e n v i g Offshore A.S Develops Low-Cost Early Oil Production Ship page: 39
- $46.8-Million Research Facility To Be Built In St. John's, Newfoundland page: 40
- Blancke Gets Contract For Fishboat Design page: 41
- Tracor W i l l Develop Communications System For I n l a n d W a t e r w a ys page: 41
- New Salvage Technique Developed In Sweden page: 41
- $ 2 4 . 6 - M i l l i o n Contract A w a r d e d To Sperry For W o r k On Frigates page: 42
- L i t e r a t u r e A v a i l a b le On ITT Decca M a r i n e 's N e w A u t o p i l o t System page: 42
- M.A.N. Acquires Majority Shares in B & W Diesel A/S page: 42
- Literature Available On Chesterton Pump And Valve Packings page: 42
- Samson Offers Literature On Synthetic Ropes page: 43
- Literature Available On Tracor Automatic Omega page: 43
- NKK To Build Two Drill Rigs For Sedco At Cost Of $29 Million page: 43
- Safety And The Marine Environment page: 44
- R.A. Sleiertin Joins Career Associates page: 46
- Brochure Available On Comsat General Marisat Terminal page: 46
- N e w York City's Big A p p l e Goes To Sea page: 47
- Second Trident Submarine Launched At Electric Boat page: 47
- IME Meeting Discussed Combustion Systems And Use Of New Fuels page: 48
- Levingston And Asmar Deliver First Drill Rig Of A New Class page: 48
- New Oil/Water Emulsion System From Hoffert— Literature Available page: 49
- L P G / A m m o n i a Tanker D e l i v e r e d By W a r t s i la page: 50
- Literature Available On Simrad's Latest Digital Echosounders page: 50
- R.R. Barkerding Joins Ryan-Walsh Stevedoring page: 50
- SNAME New York Section Hears Paper On SWATH Vessels page: 51
- J.H. Leonhard Named Marketing Manager At International Paint page: 51
- Literature Available On Rockwell's Redesigned Steel Globe Valves page: 51
- Electric Boat Division Launches Navy Attack Submarine 'Boston' page: 55
