Page 43: of Maritime Reporter Magazine (April 1973)

SNAME Chesapeake Section Hears Paper On 'Sea Trials—Some Recommended Practices'

Pictured at the SNAME Chesapeake Section meeting are (left to right): E. Scott Dillon,

Acting Assistant Administrator for Operations, MarAd; Charles Zeien, vice president,

J.J. Henry Co., Inc.; Raymond Werrater, NSRDC; John J. Nachtsheim, Chief, Office of

Ship Construction, MarAd; Seth Hawkins, vice chairman of the Chesapeake Section;

Robert L. Jack, MarAd, author; Laskar Wechsler, Technical Director, NAVSEC, and

Richard Douglas, senior engineer, Bethlehem Steel Corporation.

The Chesapeake Section of The

Society of Naval Architects and

Marine Engineers held the fifth meeting of its 1972-73 technical program on February 13, 1973, at the Walter Reed Army Medical

Center Officers Club in Washing- ton, D.C.

Following the social hour and dinner, which were enjoyed iby ap- proximately 115 members and guests, vice chairman Seth Hawk- ins opened the meeting by welcom- ing those in attendance and com- mented that the large turnout of the membership during the year was a reflection of the excellent selection of papers, and congratu- lated Ronald K. Kiss, former chair- man, papers committee. The pres- ent chairman of the papers com- mittee, John Heffernan, Bethlehem

Steel, has accepted this challenge and is still accepting nominations for papers 'for next year's technical program.

After completing other normal

Section business, vice chairman

Hawkins introduced the modera- tor of the technical session, John

J. Nachtsheim, Chief, Office of Ship

Construction, Maritime Adminis- tration. Because the sea trials of a new ship represent the culmination of several years of efforts by liter- ally thousands of people, from pre- liminary design through construc- tion, Mr. Nachtsheim introduced this paper as the final test to insure that the ship had achieved the ob- jectives and goals of its designers and owners and was ready to enter into the competitive world. He in- troduced the author, Robert L.

Jack, as a graduate engineer who has had 15 years of sea trial experi- ence, eight of which were as the

Chairman, MarAd Trial Board.

The title of his paper is "Sea Trials —Some Recommended Practices."

Mr. Jack opened his discussion by stating that SNAME was publish- ing a new Technical & Research

Bulletin C2, Code for Sea Trials, which is a very 'comprehensive document which consolidates, sim- plifies and updates the previously published SNAME codes on this subject It has been exceptionally well done by Panel M-19 and has covered many of the recommenda- tions that the author has had in mind for some time for inclusion in a paper such as this. However, after a careful review of the final draft of Bulletin C2, Mr. Jack be- lieves there are still many "do"s and "don't"s that are not properly a part of a document of that kind but, nonetheless, must be ob- served if meaningful trial results are to be obtained The contents of the paper and his verbal discussion covered trial areas, such as schedul- ing events, trial supervisor, shaft calibration and torsion meters, fuel oil meters, radiometric equipment, fuel analysis, fuel rate calculations, correlation with model tests, etc.

The wide diversity and geograph- ic locations of the discussers in- dicated the common interest with which sea trials affect our industry.

The discussers were Charles Zeien, vice president, J,J. Henry Co., Inc.;

Richard Douglas, Bethlehem Steel,

Sparrows Point; Quentin Robinson and C.J. Wilson, Naval Ship Re- search and Development Center;

John Breeden, Eriede & Goldman;

Robert Giblon, president, George

G. Sharp, Inc.; James Steadman,

Ingalls Shipbuilding Division, and

Chester Long and Hannon Bur- ford, Newport News Shipbuilding and Dry Dock Co.

It was the consensus of opinion of tihose in attendance that Mr.

Jack's paper should be appended as a supplement to SNAME T&R

Bulletin C2 and be required read- ing for all those in the profession directly or indirectly concerned with conducting official sea trials.

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April 1, 1973 45