Class Trials on USS Lowa (BB 61) Class - Past and Present by Richard J
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David Taylor Research Center Bethesda, MD 20084–5000 * DTRC-89/027 October 1989 Ship Hydromechanics Department Research and Development Report First of Class Trials on USS lowa (BB 61) Class - Past and Present by Richard J. Stenson i I # Presented at the Spring Meeting/STAR Symposium of the Society of Naval Architects and Marine Engineers New Orleans, Louisiana, 12-15 April 1989 (5 K 1- Approved for public release; distribution is unlimited. 0 CODE 011 DIRECTOR OF TECHNOLOGY, PLANS AND ASSESSMENT 12 SHIP SYSTEMS INTEGRATION DEPARTMENT 14 SHIP ELECTROMAGNETIC SIGNATURES DEPARTMENT 15 SHIP HYDROMECHANICS DEPARTMENT 16 AVIATION DEPARTMENT 17 SHIP STRUCTURES AND PROTECTION DEPARTMENT 18 COMPUTATION, MATHEMATICS & LOGISTICS DEPARTMENT 19 SHIP ACOUSTICS DEPARTMENT 27 PROPULSION AND AUXILIARY SYSTEMS DEPARTMENT 28 SHIP MATERIALS ENGINEERING DEPARTMENT DTRC ISSUES THREE TYPES OF REPORTS: 1. DTRC reports, a formal series, contain information of permanent technical value. They carry a consecutive numerical identification regardless of their classification or the originating department. 2. Departmental reports, a semiformal series, contain information of a preliminary, temporary, or proprietary nature or of limited interest or significance. They carry a departmental alphanumerical identification. 3. Technical memoranda, an informal series, contain technical documentation of limited use and interest. They are primarily working papers intended for internal use. They carry an identifying number which indicates their type and the numerical code of the originating department. Any distribution outside DTRC must be approved by the head of the originating department on a case-by-case basis. NDW-DTNSRDC 5602/51 (Rev 2-88) UNCLASSIFIED ECURITY CLASSIFICATION OF THIS PAGE Form Approved REPORT DOCUMENTATION PAGE OM8N0 0704-0188 a REPORT SECURITY CLASSIFICATION lb RESTRICTIVE MARKINGS UNCLASSIFIED a SECURITY CLASSIFICATION AUTHORITY 3 DISTRIBUTION/AVAILABILITY OF REPORT Approved for public release; b DECLASSIFICATION I DOWNGRADING SCHEDULE distribution is unlimited. PERFORMING ORGANIZATION REPORT NUMBER(S) 5 MONITORING ORGANIZATION REPORT NUMBER(S) DTRC-89/027 a NAME OF PERFORMING ORGANIZATION 6b OFFICE SYMBOL 7a NAME OF MONITORING ORGANIZATION (/f applicable) David Taylor Research Center 1523 c. ADDRESS (City, State, and ZIP Code) 7b ADDRESS (City, State, and ZIP Code) Bethesda, MD 20084-5000 I a. NAME OF FUNDING/SPONSORING 8b OFFICE SYM80L 9 PROCUREMENT INSTRUMENT IDENTIFICATION NUMBER ORGANIZATION (If app/icab/e) I c. ADDRESS (City, State, and ZIP Code) 10 SOURCE OF FUNDING NUMBERS PROGRAM PROJECT TASK WORK UNIT ELEMENT NO NO NO ACCESSION NO 1. TITLE (Include Security Classification) FIRST OF CLASS TRIALS ON USS IOWA (BB 61) CLASS--PAST AND PRESENT 2. PERSONAL AUTHOR(S) Stenson, Richard J. 3a. TYPE OF REPORT 13b TIME COVERED 14. DATE OF REPORT (Year, Month, Day) 15 PAGE COUNT Fins 1 6 SUPPLEMENTARY NOTATION Presented at the Spring Meeting/STAR Symposium of the Society of Naval Architects and Marine Engineers, New Orleans, Louisiana, 12-15 April 1989. 7 COSATI CODES I 18 SUBJECT TERMS (Continue on reverse /f necessary and ldentlfy by Mock number) FIELD GROUP SUB-GROUP uss IOWA (BB 61) Standardization Trials ~ USS NEW JERSEY (BB 62) Tactical Trials I 1 u 19 ABSTRACT (Continue on reverse if fiecessary and identify by block number) The U. S. Navy has for many years conducted First of Class Trials on each new class of ship built for the Fleet. During World War II, such trials were accomplished on the USS NEW JERSEY (BB 62) representing the new IOWA Class battleships which were then entering the fleet. These trials were conducted by the David Taylor Model Basin at Rockland, Maine in October 1943. Over 40 years later, under the Battleship Reactivation and Modernization Program, the David Taylor Research Center (DTRC) was tasked by the Naval Sea Systems Command (NAVSEA) to conduct a new set of First of Class Trials for the IOWA Class. These new trials were deemed necessary due to the many changes to these ships which have occurre< over the years and more recently during the Reactivation Program. The new trials were conducted on the lead ship, USS IOWA (BB 61) in August 1985 at the Hatteras East Coast ,. (Continued on reverse side) 20 DISTRIBUTION/AVAILABILITY OF ABSTRACT 121 ABSTRACT SECURITY CLASSIFICATION q IUNCLASSIFIEDWNLIMITED !XXSAMEA5RPT q IDTICUSERS UNCLASSIFIED 22a NAME OF RESPONSIBLE INDIVIDUAL 22b TELEPHONE (lnc/ude Area Code) 22c OFFICE SYMBOL Richard J. Stenson (301) 227-1870 1523 ODForm 1473, JUN 86 Previous edit;ons are obsolete SECURITY CLASSIFICATION OF THIS PAGE S/N O1O2-LF-O14-66O3 UNCLASSIFIED . .. .— . .. ..————— UNCLASSIFIED SECURITY CLASSIFICATION OF THIS PAGE . (Block 19 Continued) Tracking Offshore Range (HECTOR) operated by DTRC. Trials techniques, methods of data collection, and data analysis have also ‘. changed considerably over the ensuing 42 years since delivery of these ships. These new techniques and procedures will be discussed, contrasted, and compared. 1 . - —- -. .,.- .-. DDForm 1473, JUN 86(Rever=) SECURITY CLASSIFICAIIUN w IHIb w-wt UNCLASSIFIED CONTENTS Page ABSTRACT. .0...0..0 . 000..0... .00...0.. ...00. 0..000... ...0 ..* 1 1 INTRODUCTION . 0 . ...0.0. ...0.0.0. l . ...0.... 0.00....0 . 1 Background . l . l l . l l . l l . l . l . l . l l l . l . l . l . l . l l . l . l . USS NEW JERSEY (BB 62) First of Class Trials - October 1943 . 2 uss IOWA (BB 61) First of Class Trials - August 1985 . 2 SHIP CHARACTERISTICS AND TRIAL CONDITIONS . ..0..... ...0 l .0....... 3 uss NEW JERSEy (BB 62) . ...0.. ...0 l **....*. 3 uss IOWA (BB 61) . l . l . l . 4 TRIAL SITES AND TRIAL PROCEDURES. l l . l . l . 4 uss NEW JERSEY (BB 62) . l l l . l . l . l . 4 Measured Mile Course, Rockland, Maine . 4 Standardization Trials Procedure. 5 Tactical Trials Course, Rockland, Maine . 6 Tactical Trial Procedure.. 7 Fuel Economy Trials Procedure. 7 uss IOWA (BB 61) . l l l . l . l l l o . l . l l . l . l l l . l l . .* . l . l 8 Hatteras East Coast Tracking Offshore Range (HECTOR) . 8 Standardization Trials Procedure. 8 Tactical Trials Procedure. 9 Fuel Economy Trials Procedures. 9 INSTRUMENTATION. l . l . l . l l . l l . l . l l . .0 l . l . l . l l . l . 9 uss NEW JERSEY (BB 62) . ..* . l l . l . l l l . l l l . l . l . l . l . l l . 9 Standardization Trials Instrumentation . 9 iii ——— ..— .—.. CONTENTS (Continued) Page Tactical Trials Instrumentation . 10 Fuel Economy Trial Instrumentation. 11 11 uss IOWA (BB 61) . ..0..... .. 0.00... ...0. l . ...0.. ...0.... l 0..0.. Standardization Trials Instrumentation . 11 Tactical Trials Instrumentation . 12 Fuel Economy Trials Instrumentation . 13 PRESENTATION AND DISCUSSION OF RESULTSl . l . l l . l l . l l . 13 USS NEW JERSEY (BB 62) l .*. l . l . l . l . l l . l l . l . l l . 13 Standardization Trials... 13 Tactical Trials . 14 Fuel Economy Trials . 14 uss IOWA (BB 61) . ...0. 14 Standardization Trials . 14 Tactical Trials . 15 Fuel Economy Trials . l . l . 16 COMPARISON OF DATAl . l . l . l . l . l l l . l . l l l l . l . l . 16 Standardization Trials . 16 Tactical Trials . 16 Fuel Economy Trials . 18 CONCLUSIONS. l . l , . l . l . l . l , . l . l . l . l . l . l . l l . l l l . 18 REFERENCES. l *. l . l . l . l . l l . l . l l l . l l . l . l 0 . l . 19 iv Page 3 1. uss NEW JERSEy (BB 62) . ..*...... ,. .0..0... l . 5 2. USS IOWA (BB 61) . 0..0..0.. l 00.0 . ..s l ...00.00. l ..0...0.0 l .000000.0 3. USS IOWA (BB 61) in drydock .0..000... ...0.0... ...0. ..0..... 6 4. Measured Mile Course, Rockland, Maine. 6 5. Tactical Trial Course, Rockland, Maine . 7 6. Shore station party, Rockland, Maine . 7 8 7. Hatteras East Coast Offshore Range (HECTOR) l . l . l . l . l . l . l 8. HECTOR Range tower . 8 9. Instrumentation block diagram, USS NEW JERSEY (BB 62) . 10 10. Typical instrument trial room, 1943 . ...0...0 . ..0. 10 11. Chronograph . 10 12. Torsionmeter husk and magnetic micrometer . 11 13. Shore station tripod . l . , . l . l . l l . 11 14. Instrumentation block diagram, USS IOWA (BB 61) . 11 15. CRT display, standardization data . 12 16. Motorola Falcon tracking equipment. 12 17. Acurex torsionmeter . 12 18. CRT display, tactical turns . 13 19. Standardization Trials data, USS NEW JERSEY (BB 62) . 13 20. Tactical plot, USS NEW JERSEY (BB 62) . l . l l l . l l l l . l Ol l l . l 0 14 21. Tactical Curves, USS NEW JERSEY (BB 62) l .0....... ..00..... ...*. 14 22. Fuel Economy Curves, USSNEW JERSEY (BB 62) . 15 23. Standardization Trials data, USS IOWA (BB 61) . 15 FIGURES (Continued) Page 24. Tactical plot, USS IOWA (BB 61) . 15 25. Tactical curves, USS IOWA (BB 61) . ..0..... ...00 . 17 26. Fuel Economy Curves, USS IOWA (BB 61) . l .00..... 17 27. Standardization Trials comparison . 18 28. Tactical Trials comparison. ..