Page 10: of Maritime Reporter Magazine (November 1980)
Key participants at recent International Paint Company seminar held at New York
Yacht Club were (L to R): R.A. Hartley, senior technical vice president of Inter- national Paint Company, Inc.; Dr. R.L. Townsin, professor at the University of
Newcastle-upon-Tyne, England; T.M. Reinhardt, president of International Paint
Company, Inc.; and G.C. Johnson, executive vice president of International Paint
Company (California), Inc.
International Paint Seminar
Stressed Importance Of Smooth Hull
International Paint Company,
Inc. of Union, N.J., recently spon- sored a technical seminar concern- ing the economic importance of hull condition. It featured Dr.
Robert L. Townsin, professor in the Department of Naval Archi- tecture and Shipbuilding at the
University of Newcastle-upon-
Tyne, England, and was attended by representatives of shipowners and operators from around the
Dr. Townsin is a world-known authority on ship hydrodynamics, hull roughness, and ship perform- ance measurement. He is a Fellow of the Royal Institution of Naval
Architecture in the U.K. and a member of The Society of Naval
Architects and Marine Engineers.
At the recent Shipboard Energy
Conservation Conference '80 in
New York Dr. Townsin, together with Tor Svensen, presented his most recent paper entitled Moni- toring Speed and Power for Fuel
Among the topics covered at the seminar were: the causes of hull roughness; practical meas- urement of hull roughness — de- vices and techniques; the rela- tionship between hull roughness and power; techno-economics of hull condition; and ship perform- ance.
According to Dr. Townsin, foul- ing is an economic disaster be- cause of the enormous additional fuel required to overcome the added drag it causes (five percent fouling requires about 10 percent more fuel). However, thanks to organotin copolymer antifoulings such as Intersmooth SPC, fouling is a thing of the past, Dr. Town- sin claimed.
Physical hull roughness is more insidious, as it increases through- out the life of a vessel using tra- ditional antifoulings under nor- mal maintenance practices. Dr.
Townsin suggested a number of steps to take to reduce the severe economic impact of the physical hull roughness caused by, among other things, painting in the dry- dock and deterioration of spent traditional antifouling.
These steps included stricter at- tention to surface preparation, use of proper spray coating tech- niques, and coating the under- water hull with self-polishing co- polymer antifouling to smooth the hull in service. Finally, Dr. Town- sin spoke about the desirability of monitoring ship performance to insure economic operation.
International Paint Company,
Inc. is part of a worldwide orga- nization with operations in 23 countries. The company's princi- pal business is the manufacture and sale of paints in the marine, yacht, and protective coatings markets. Worldwide sales in the year ending March 31, 1980 were more than $550 million. The com- pany's U.S. manufacturing plants are located in Union, N.J., New
Orleans, and San Francisco.
Navy Awards Jonathan $5.6-Million Contract
For Work On AFS Vessels
The Jonathan Corporation, Nor- folk, Va., has been awarded a $5,589,738 cost plus award fee contract for advanced planning, design work, repair and overhaul of AFS (combat store ship) class vessels. The Naval Sea Systems
Command is the contracting ac- tivity. (N62678-81-C-0001)
R. W. FERNSTRUM Sl CO., EXPORT DEPT.
MENOMINEE, MICHIGAN, U.S.A. 49858
Phone (906) 863-5553 • Telex: 26-3493 • Answer Back: FERNSTRUM MNOM 10 Write 275 on Reader Service; Card Maritime Reporter/Engineering News