I i

1David Taylor Research CenterBethesda, Maryland 20084-5000

* NDTRC/SHD-1263-02 August 19P9

Ship Hydromechanics Department

Technical Re-portI

- THE ATHENA RESEARCIt SHIP SYSTEM

" -A DECADE-PLUS OF SERVICE

- Jximis A. Heffner

II

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I-Appr-)v d f,r Pub! o R , ,

.M<D l :S t F ib U t io n t l 1 m i -d,

T

UCU -1

!I.I 398 1 ut o56

CODE 011 DIRECTOR OF TECHNOLOGY. PLANS AND ASSESSMENT

12 SHIP SYSTEMS INTEGRATION DEPARTMENT

14 SHIP ELECTROMAGNFTIC SIGNATURES DEPARTMENTI

15 SHIP HYDROMECHANICS DEPARTMENT

16 AVIATION DEPARTMENT

17 SHIP STRUCTURES AND PROTECTION DEPARTMENT

18 COMPUTATION MATHEMAIICS & LOGISTICS DEPARTMENT

19 SHIP ACOUSTICS DEPARTMENT

27 PROPULSION AND AUXILIARY SYSTEMS DEPARTMENT

28 SHIP MATERIALS ENGINEERING DEPARTMENT

This; documient contains informiatin attectirir the national defense of the United Stateswithin the mneaning ot the Espionage Laws. Title 18 U S C .Sections 793 and 794 The

transmission or revelation of its contents in) awn anner to an Unauthorized per son isI

prolibitd byliIDTRC ISSUES THREE TYPES OF REPORTS

1DTRC reports. a formal series, contaiin inhumation1 of perlmanent te'Chnica V,11ue1They carry a consecutive numnerical1 Idntificatu in re"(droiess of their cla1ssific'Ition or the

I o iinatinq departnient

2 Departmental reports. a semiforrral series. i rt.w iirt. i nmlition o)f a prelimiinarytem~rpora'ry. or prop)rietary naltur ()r of lirnito( rili-,t )r 'oirnifi,ince They carry adepairtrmerit alaIphia nmi rcal idotoitrca fin

73i Technical rmemnoranda, an inform~al series.i rtan to~il1 dc ui I ito lnenital t) of

Carry an idrintifyinq rrilriihr wfrichlr mdii itis Itfiiir IVypi Mdo Ih( riunirical CodeC Of tIe'rirqiriatinqr dopartmirnt An,,, di,t,trriin ,iiit'ildi W ' [ 11 wr t tUu ilil;)ovfil hy the tread ofIthe orit-iriitiriq (fcnt)irtrri rrt il ti O t~'

I'0uA.TY CLASSIFICATION OF THIs PA ,E

REPORT DOCUMENTATION PAGE

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DTRC/SHD-1263-02

6a. NAME OF PERFORMING ORGANIZATION 6b OFFICE SYMBOL 7a. NAME OF MONITORING ORGANIZATION

avid Taylor Research Center (If applicable)ICode 1540.3

Bc. ADDRESS (City, State. and ZIP Code) 7b. ADDRESS (City. State. and ZIP Code)

Bethesda, MD 20084-5000

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ORGANIZATION (If applicable) -

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I I LE (Include Security Classification)

THE ATHENA RESEARCH SHIP SYSTEM - A DECADE-PLUS OF SERVICE (U)

2 PFRSONAL AUTHOR(S)Heffner, James A.

13a. TYPE OF REPORT 13b. TIME COVERED 14. DATE OF REPORT (Year, Month Day) 15. PAGE COUNTDepartmental IFROM _ ___TO ____ 1989, August 18

6 SUPPLEMENTARY NOTATION

1 COSATI COOES I8. SUBJECT TERMS (Continue on reverse if necessary and identify by block number)FIELD GROUP SUB-GROUP RESEARCH SHIPS SHIP ADMINISTRATION

ATHENA SYSTEM PROGRAM SUPPORT

1, ABSTRACT (Continue on reverse if necessary and identify by block number)The performance of the ATHENA Research Ship System is documented over 13 years of service.

The basic charter for the System was stated by Rear Admiral Geiger at the dedication ofATHENA in January 1976. A brief history of the System is given and its operation is described.Typical programs supported by the ATHENA System are included and some of the more unusual trialsare highlighted.

It is concluded that the System has performed in accordance with the charter and has madepossible significant contributions to the Navy's technological base.

20 DISTRIBUTION/AVAILABILITY OF ABSTRACT 21 ABSTRACT SECURITY CLASSIFICATION(M"UNCLASSIFIEONLIMIrEo 0 SAME AS RPT oTic uSE Rs UNCLASSIFIED

J2a NAME OF RESPONSIBLE INOIVIOLIA, 2ZpEO nlud. A, ca Code) 22. .OFFF.SXfA8O.James A. Heffner

0 einma sed untilennausted ,A,,, , ,r'r rtniv no: rwt, PAr.F

SECURITY CLASSIFICATION OF THIS PAGE

ICONTENTS

Page

ABSTRACT ...... ................................................................. 1

INTRODUCTION. NEED............................................................... 1

A DEVELOPING NEED ................................................................. 1

S SYSTEM ASSETS. ................................................................

A BRIEF HISTORY ................................................................... 4

I EMPLOYMENT.................................................................... 5

UNUSUAL FEATURES/VERSATILITY ............................................... 7

UTHE SYSTEM ................................................................. 8

FULFILLING THE CHARTER ........................................................ 9

i ACKNOWLEDGEMENTS .............................................................. 10

APPENDIX A RDT&E TRIALS CONDUCTED ABOARD THE ATHENAS ...................... 11

I FIGURES

1. The Sister Ships ATHENA and ATHENA II steaming information (ATHENA in foreground) ........................................ 3

2. ATHENA II towing an MH-53E Helicopter backwards to assess certain flightenvelope characteristics................................................ .

3. ATHENA outfitted with pressure rakes in the plane of the starboard pro-peller. Pressure signals from taps in the rake are led to deck levelfor measurement. The rake can be rotated about the shaft ............... .

4. ATHENA outfitted with twin outboard booms and sheaves. Towed arrays arestreamed simultaneously port and starboard to permit direct comparisonof competing towed acoustic array designs ................................

TABLES

I. Key features of the converted patrol gunboats .......................... 3

E 2. Current Status of ASHVILLE Class Parol Gunboats ........................ 5

I .- A

I -'

I iii .:

I{

I3 ABSTRACT

The performance of the ATHENA Research Ship Systemis documented over 13 years of service.

The basic charter for the System was stated by RearAdmiral Geiger at the dedication of ATHENA in January1976. A brief history of the System is given and itsoperation is described. Typical programs supported bythe ATHENA System are included and some of the more3 unusual trials are highlighted.

It is concluded that the System has performed inaccordance with the charter and has made possiblesignificant contributions to the Navy's technologicalbase.

3 INTRODUCTION

This report has been prepared to document the performance of the ATHENA Research

Ship System over a decade-plus of service. The charter for the System was basically

stated by Rear Admiral Robert Geiger, the Chief of Naval Research, on the occasion of

I the dedication of the USS CHEHALIS as the research vessel "ATHENA". Admiral Geiger's

statement essentially provides the unifying theme to what must appear to outside

observers as a somewhat random series of tests conducted on a discarded class of Navy

ships, the Patrol Gunboats. It is hoped that this report will serve to establish the

underlying order that actually exists, reinforce the importance of "hands-on" testing

I in the development of Navy Systems and alert potential System users to the flexibility

and versatility of the ATHENA Research Ship System. - /

A DEVELOPING NEED

On 19 January 1976, Rear Admiral Robert Geiger, Chief of Naval Research, dedicated

the high-speed research vessel "ATHENA" in the Port of Miami. Among other remarks,

Admiral Geiger made the following comments:

... The conversion of the patrol gun boat USS CHEHALIS into the high speedresearch and development vessel ATHENA represents the culmination of years ofdedicated efforts and cooperation of many naval organizations and individuals.As Chief of Naval Research I feel proud to have been part of the effort that hasresulted in this event.

The Navy of the future will be a higher speed Navy. A brief review offuture trends in ship design shows that a significant number of fleet unitswill be capable of speeds well in excess of 30 knots. Among these are the 688-class nuclear submarines, hydrofoils, and surface effect ships, to name a few.

*1I

At the present time, we have negligible capability to operate acousticsensors at speeds in excess of 20 knots. Even more important, we have exhaustedthe technology base that allowed us to reach this capability. Currently we evenlack a comprehensive data base on self-noise of ship-board sonar at higherspeeds.

The Navy has requirements for a number of towed systems to operate at about20 kaots with survival capabilities in the 35- to 40-knot range. In additionto these programs, significant development efforts can be foreseen fordetermining the feasibility of equipping the hydrofoils and surface effect shipswith towed sensor suites. Development of advanced towline technology, vortexshedding abatement and improved analytical models are some of the areas that needexploration to meet these future needs.

At the present time, full scale research tests on fleet unit platforms arehandicapped severely by the limited number of available units and available testtime for research and development. Although the final systems evaluation mustbe conducted on the end-use platforms; i. e., the ships that in the final analysismust use the sensors, it has been demonstrated that significant advances accruefrom the use of platforms dedicated exclusively for these tests.

The immediate application of ATHENA 's capability will be in support of thetowed mine countermeasures program. Other research commitments includeacoustics, a high-speed sensor program, submarine communications, high-speedtowed arrays,airborne mine countermeasures as well as programs relating to thereliability and improvement of systems.

In closing, I am confident that ATHENA will be a vital element inreplenishing that type of knowledge leading to the most effective instrumentsand equipment for our fleet. I am reminded that in ancient mytholugy, ATHENAwas the patroness of warriors who attained their victory through prudence,courage and perseverance. I am sure this ship will live up to its namesake.But even more important, we are confident the ATHENA will contribute immeasurably

to creating the much needed higher speed technology base.

Thus was born the ATHENA Research Ship System. That System now has been in place

for a decade and three years. It thus seems appropriate to pause and inquire whether

the ship dedicated by Admiral Geiger and her sister USS GRAND RAPIDS, dedicated as

ATHENA II in January 1978, have fulfilled the charter he so clearly stated.

SYSTEM ASSETS

The ATHENA Research Ship System assets consist of the two ships previously

mentioned, converted to research vessel (R/V) configuration, and USS DOUGLAS (PG-100),

held in inactive ship storage. Figure 1. shows ATHENA and ATHENA II steaming in

format ion.

The attraction of this particular class of ship for research, development, test and

evaluation work (RDT&E) centers on a rare combination of performance, size and cost

2I

I

in formation (ATHENA in foreground).

characteristics that are still matched by no other vessel. The key features of these

ships are shown in Table 1.

TABLE 1. Key features of the converted patrol gunboats

: TOP SPEED ..... 35+ KNOTS !ji PROPULSION ............ .21 CUMMINS DIESELS(V-12)!ii .. ..... UP TO 13 KNOTS; I GE

: SHAFT H.P ......... 13,000 (TURBINE) GAS TURBINE (LM-1500) :I ;i iliABOVE 13 KNOTS; CP

I CONSTRUCTION ...... ALL ALUMINUM HULL WITH IPROPELLERSi~~i FIBERGLASS SUPERSTRUCTURE, !

iLOW MAGNETIC SIGNATURE i TOWING CAPABILITY ..... 15,000 TO 20,000 LBS25 TO -0 KNOTS

: CREW .............. MINIMUM TO ACCOMPLISH R&DMISSION SPACE ................. ELECTRONICS LAB, AFTER

,, DECK SPACE FOR HANDLINGAUXILIARY POWER... APPROXIMATELY 130KW FOR iGEAR

INSTRUMENTATION, DECK ;

I'

MACHINERY, ETC. , ACCOMMODATIONS ........ UP TO .90 ENGINEERS ANDI TECHNICIANS

RESERVE B OYANCE.. ADEQUATE TO ACCOMMODATE UP lTO 10 TONS OF HANDLING LENGTH ................ 165 FEET

I infraio AHNAi oegon)

EQUIPMENT & TEST GEARDESIGN DISPLACEMENT... 245 TONS

H MAXIMUM DRAFT ..... 9.5 FEET ....I9: ! BEAM . . . . . . .... 23.5 FEET

:. T5 P ...... ..... M E

I3

IThese ships cruise economically at 12 to 13 knots but yet provide the power to

stress developmental gear to its maximum capability. The reserve buoyancy and

stability allows equipment of meaningful size to be evaluated. And the low magnetic

signature allows the ships to work in close proximity to magnetically sensitive

systems.

A BRIEF HISTORY

The first of the ships (formerly CHEHALIS, PG-94) began serving projects in January 31976 after undergoing an extensive conversion during the previous fall and winter.

The alterations included the removal of all weapons and weapons support systems, 3creation of the laboratory area, beefing up the afterdeck to accommodate special

winches, installation of state of the art electronic navigational equipments, and

habitability improvements.

After conversion, ATHENA was home-ported at the Naval Coastal Systems Center 'NCSC)

at Panama City, Florida, and began fulfilling project assignments there in connection

with mine, mine countermeasure and minesweeping system development.

ATHENA was so successful in its RDT&E support role that its schedule soon filled

to capacity. It was clear that a second ship would be needed and, in January, 1978,

conversion of GRAND RAPIDS (PG-98) was completed and the R/V ATHENA II was brought on 3line. At that time, the workloads for the ships were adjusted, with ATHENA taking

most acoustically-oriented assignments and ATHENA II handling the assignments relating

to mine systems, including the development of new helicopter-deployed minesweeping gear

by the Naval Air Systems Command (NAVAIRSYSCOM). The third ship (DOUGLAS, PG-100) was

acquired at the same time the ATHENA System accepted GRAND RAPIDS. IThe PGs evolved as a result of the Cuban Missile crisis of the early 1960's when

a requirement was identified for a high-speed interdictive craft to perform patrol,

blockade, surveillance and related Naval support missions. Seventeen ASHEVILLE class

PGs were designed and built between 1963 and 1969. The largest coastal patrol craft 3built for the Navy since World War II, these craft were unique in being the first U.S.

Navy ships powered by gas-turbine propulsion systems.

These ships served with distinction in U.S. waters, Vietnam and the Mediterranean.

Beginning in 1974, the Navy decided to reduce the active force levels of PGs, thus

making available the CHEHALIS, GRAND RAPIDS and DOUGLAS. In 1977 the Navy decided to Ideactivate all of the ASHEVILLE Class Gunboats. The ships were dispersed to various

government agencies, academic institutions and foreign governments. The status and 3

41

r! I

disposition of the ASHEVILLE Class, as of the date of this report, are shown in

Table 2.

Table 2. Current Status of ASHVILLE Class Patrol Gunboats

VFSSEL OWNER FUNCTIONJASHVILLE (PG 84) Massachusetts Maritime Academy Training (now scrapped)GALLUP (PG 85) U.S. Navy Inactive Ship Storage1ANTELOPE (PG 86) Environmental Protection Agency Ocean Dump-site SurveyI READY (PG 87) Massachusetts Maritime Academy Training (now scrapped)iCROCKET (PG 88) Environmental Protection Agency *Pollution Monitoring5MARATHON (PG 89) Massachusetts Maritime Academy Training (now scrapped)=CANON (PG 90) US. Navy Inactive Ship StouagpTACOMA (PG 92) Columbia OperationalWELCH (PG 93) Columbia OperationalICHEHALIS (PG 94) David Taylor Research Center RDT&E.:DEFIANCE (PG 95) Turkey Operational.BENICA (PG 96) South Korea Operationall SURPRISE (PG 97) Turkey OperationaliGRAND RAPIDS (PG 98) David Taylor Research Center RDT&E.,BEACON (PG 99) U.S. Navy Inactive Ship Storage.,,DOUGLAS (PG 100) David Taylor Research Center Inactive Ship StorageI GREEN BAY (PG 101) U.S. Navy Inactive Ship Storage

*After several years of monitoring pollution in the Great Lakes for EPA,the ship was transferred to the Great Lakes Naval and Maritime Museum.

EMPLOYMENT

The very first project undertaken on ATHENA was a test of the AOS-14 sonar system.

While it is not always easy to trace the product of RDT&E efforts through the labyrinth

of development to a culmination in real world fleet usage, much of the mine system work

done on the ATHENAs in the seventies has been passing in the eighties Lhe most

realistic of all test in the Persian Gulf.

Operating under a Memorandum of Understanding with DTRC, the Naval Underwater

Systems Center (NUSC), uses ATHENA as the platform for Gulf and adjacent Atlantic and

Caribbean waters sea tests, developmental efforts and experiments in towed array

hydrodynamics, self-induced flow noise reduction, and enhancement of arrays' acoustical

performance. Here, too, there is a direct link between the work of scientists in a

Navy laboratory (NUSC) and the serious business of combat prevention. Virtually every

towed array in use today underwent some or all of its experimental and developmental

testing from ATHENA, just as today the same kind of testing is being done on next

generation multi-line towed arrays (MLTA).

5

Possibly the most unusual sea test ever performed, and certainly the most unusual

ever conducted from either of the ATHENAs, was the one shown in Figure 2 in which

ATHENA II, at her top speed, towed an in-flight MII-53E helicopter backwards to help

assess certain of the helo's flight envelope characteristics.

During the thirteen and eleven years respectively in which the ATHENA and ATHENA

II have operated, the ships have supported 270 separate sea trials. A list of the

individual trials is shown in Appendix A. These have supported efforts as basic as

measuring the flowlines and boundary layer characteristics of the ATHENA jfigure 3 ,

as a bridge in correlation of the flow and drag characteristics of small scale models

with ships of the line, and as currently practical as trimming minesweeping gear ill

certification for fleet deployment. The ATHENA System has provided the vehicle for

developmental testing of all the latest high-speed towed acoustic arrays 'figure 4,

including the SQR-19, almost all airborne mine hunting, cutting and neutralization

equipment, pressure and magnetic sweeps, submarine communications buoys, propeller

parameter studies, and a host of other programs, including gathering satellite

ground-truth date and help determine why the USS BARBEY (FF 1088) lost its propeller

in 1974.

II

• III-I

Fig. 2. ATHENA IT towing an MH-52E Hlicopter backwards to assesscertain flight. envelope characteristics. 3

I

I

3 ATHENA usage is not limited exclusively to Navy users. Over the years, contractors

such as Westinghouse, Chesapeake Instruments, Bendix Corporation and Gould have mounted

I major test programs from the platforms.

UN'USUAL FEATURES/VERSATILITY

The ATHENA incorporates an advanced Masker system which allows the ship to operate

more quietly than any other ships in the fleet.

Although there are some differences in outfitting and arrangement between ATHENA

and ATHENA II, both ships have retained the special size, speed, horsepower and

economic characteristics that made them so useful in the first instance. Neither ship

has been rigidly confined to a specific kind of project. On the contrary, the v-ssels

can be rigged, modified and reconfigured as necessary to meet almost any requirement

a sponsor may have. In this way, both ships are able to maintain optimally active

schedules which result in lower ship cost than would otherwise be the case. The

savings are passed on to users who enjoy access to a large and capable platform at

costs thit are usually substantially lower than are available from other ship sources.

IIFig. 3. ATHENA outfitted with pressure rakes in the plane of the starboard

propeller. Pressure signals from taps in the rake are led to decklevel for measurement. The rake can be rotated about the shaft.I7

II, ..... ...._ ... _ .

Fig. 4. ATHENA outfitted with twin outboard booms and sheaves.Towed arrays are streamed simultaneously port and starboardto permit direct comparison of competing towed acoustic arraydesign.

THE SYSTEM

At the time the ATHENA System was designed, it was recognized that logistic support

of the ships and projects would be as important as the ships themselves. As a result,

the ATHENA Research Ship System is exactly that: a SYSTEM that includes the ATHENA

System Management office at DTRC, the vessels, docks and dockside facilities at NCSC,

the ship operating contractor, and the ability to furnish every service needed to

logistically and technically support a sponsor's project. The way it all works is

simplicity itself, avoiding the usual bureaucratic rocks and shoals. Prospective

sponsors are sent an ATHENA Systems Users Manual', that includes detailed ship

specifications, layout drawings and a questionnaire that helps to define project

objectives, needs and schedule requirements.

The information provided, usually reviewed at a face-to-face meeting with the

project sponsor, is used to develop a cost estimate and subsequently to mobilize the

assets required to support the trial. These assets include technical, engineering,

fabrication and purchasing resources at the System's disposal. Other assets that can

be mobilized to support sponsor projects include photographers, divers, welders,

8

I

riggers, naval architects, engineers, ship-board winches, shoreside fork lifts and

cranes and waterborne and airborne support craft. In this respect, a sponsor himself

may provide any or all of the logistic support that does not directly affect the ships,

power, structural, navigational or stability capabilities.

The ship's are typically scheduled for at least two weeks of maintenance during each

quarter. Considerable flexibility is exercised in scheduling maintenance, however,

to accommodate the seemingly capricious nature of RDT&E testing requirements. The

complete System, including the vessels and the administrative components, is inspected

and reviewed quarterly by the DTRC manager to assure a high state of readiness in all

aspects. The ships are dry docked for extensive overhaul and maintenance at least once

every three years. Again, considerable flexibility is exercised to accommodate

unforeseen or emergency RDT&E trials.

FULFILLING THE CHARTER

In its baker's dozen plus one half years of operation, the ATHENA System has mor'e

than fulfilled the Charter announced by Admiral Geiger. Among the accomplishments that

have been possible with the ATHENA platforms, are the following:

Significant advances in reduction of flow induced noise and survivability of towedpassive acoustic arrays.

Development of an airborne AN/37U-I automatic deployment system for the MK 103gear (in Techeval).

Significant advancement of minehunting/neutralization technology.

Contribution to the final development of various air towed pressure/magneticminesweep apparatuses.

Development of an advanced, self correcting anti-kiting towline with proven

performance to 30 knots.

Proofing the hydrodynamic performance of submarine towed communications buoys.

Significant advancement of surface ship underwater radiated noise technology.

Propeller inflow/wake studies and correlation of model and full-scale boundarylayer characteristics.

To summarize, the ATHENA System has been satisfying the needs of the naval

establishment and private industry for sea test platforms for more than a dozen years.

4 Heffner, James A. and Shelton M. Gay, Jr; "ATHENA Research Ship Syster - Users Guide": Report DTRC/SHD-12t3-01: May 1;%: David Taylor

Research Center, Bethesda, MD 20084-54000.

9

The platforms and underlying administrative system have proven so versatile and useful

that the Navy is actively investigating pulling the additional ships remaining in

inactive ship storage for support of other Navy programs. DOUGLAS will begin to earn

her keep when she is activated to serve as the test bed for the Integrated Warship

System Demonstration Program.

ACKNOWLEDGEMENTS

The author here wishes to acknowledge the foresight and provident planning by a

number of individuals and organizations. The contributions of Mr. Reece Folb, who with

others first recognized the need for non-combatant vessels to support the at-sea

developmental testing of Navy systems and components, is worthy of special note.

The support of all the users of the ATHENA System is also gratefully acknowledged.

Many of the users have contributed significantly to upgrading the operational

capabilities of the vessels both in ship performance and special test gear. Among the

sponsors special thanks are due the Naval Air Systems Command, the Naval Underwater

Systems Center, the Naval coastal Systems Center, and the David Taylor Research Center.

10

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APPENDIX A

LISTING OF RDT&E TRIALS

CONDUCTED ABOARD THE ATHENAS

1976 THROUGH 1989

11

T Q

U

Pro ae n I

-!T nQ-I Testing 37 -.- !.. . -,-virn n-

. !y . .

ijTj A'i,;i{ -- :u-i -v,

- ,ou Yen- tre and DIal ehroa ,6-4 Var:ane epth5 P'onanta ',,,.,"' ':. i s v . S.: . ISD

0,-1 Benli x Sphtr t end:

.-2 (NR Array n a: r 3t:Shi e Log c , r: DT; r td a t. ...r ,, .. , . a a 'a r r n

4 Surface D.ouble Alone In rC ..* -5 Depth Contt o Deresacr E,'i at :n .,L:,

oube ' jn a Jae Raie pt t , Iwr aIP Rake T -SRDC Dt _

Towed Deore.- -o r DTNRLD

"t4 I I.4 Trials

t,-4 Arosi,.ie Sweep ,-iT':-~~~ e th 'Co n t i c :o. , Y3 r .PTiS 2 M.. nL 1-- . .Y :" .

no lenrol Cse Tflflf .

104 TetheI et-t . .ue e -

F loa t en rim, 'C0 , - - .

iott

IT.~~MU i !.- ,11 .3~lp.'

noorpscr U a NUP DT NSRDL

S I .ovePdt RaSPy -Te e .. t Cx I I Ari Croq.i eoc R a ed io -:e MAF H

V7,J.. r.-t ' n -1. : hrl ance DTNSRDC .," Sa, <r::

Cd17 <te' lite Trackn ,.4,4. Sa 1': is.. . .I ~ ~ ~ ~ nu art e00Crrx ' ~ -

p e15 a r o:J 0 C i C-CT AS

'- >p n -C !ontrolled/RapidJ e oT DTy.

Propeller Paraaeter r,:z CTUSr.C D - a"e.

14incated Jwl insOTU7-- Ma-ker Installation -,nd :duat Ion D bNSF It U , - I7'4 -7 T f r C ate,J TOW in -,pDT tj C Q r,0

7Q- ". Sate!i te Tra io 1 A e at :D.

-epres-or Towed Array ar-tee 1U5. sonr

70-10 'NIR TuLdj Ar ray Tr al 30 I IT In .. * ,70- 1 Rescheduled

LMS 1CC "'5nte I m ! . IThe first two dig :ts !n,jitata e t . a r , t ,- -a.

12.. ... ,;J ,P l , ; ,,]aU

Pro iect

7q1Hammfer Hlcousticc TSC

MX ?i, 07 Trim N CS C Co un Pr P a-:IreDept,~ Contro11ed!~apid Duvenrt DTD i ody *L .7;

rO- LM NOC 0oun terme a ulr ;c:

I S'pecial Projects NCCData GatheriinoPressure M a Qn e c 1CSC al ovC

0 ' lAD 11)TINS R DC D aa "a ther Ho

S I HIS DTNSRPDC om m u n r! u

O 10 Haqmer Acoustics uTSDA 14 'S -14 IN C 3C

O 10 M agne t ic Noise VCCr!

G round Towed Array Go!! i, r rc. S cn d r 3-' ;ii'u 14 (INR/G'ould Towed Array 1NR

1 0 ~~Mas ~e TSD

1~~ 1 rK 1O P~ aOC r Pte

Abrsv Sweep Wire NrSC CrI bd iV zI

M4 u1 timoe N CSISDTNP4R DC -41

UREOTowed Array R ~ ~ ~ P

Can-el ledTD DTNSRDC herntmIAdvanced Magnetic Sweep Countermeasu're

Vitbration Trials TT1SRDC' > 'p '2TE-It NUSC Sonar

14 0R!G'ould Towed Ar r a y NRnC-rS11 15 CPAM Development D TN S RIDC Th' iC

Double Alpha 4K 1C T rim NCSC yt e -me.

M!"lt im od e NC 13C Crt e t-m p o - 71

CDIRDMS T N3R DC Cable Ecoj."' P

integrated Tow ire D TNSI 5a R al n5 D/ RDMS (Tes h. Eva Ii 1CCC C:at'e BOT en,

CAMDTNSRDC ')hip "i&

2 AS DTNSRDC Conmiun C.M

TB-16 Improvement illuS ^ :.cn ar c'y tm

MH53E T owT lest N1CSC Data ridtherinQ

3 13

ProjiectimrPrograml rQ a ni:at.,n pe P-1

! -14 Hianh Speed Acoustic Sour,,e Test 'NCC r e t

15~~~~ AN A S1 N S nterseasureLM 3 NCSC onreaieJ Wpn s Target (Cancellei!) Signature

04I LMS AN/AL'O-loo NCSC Coun termeasure

95- 1 Doubl',e Alpha NCSC Count ermeas' reJ -Multinode (Cancelled! 4MS

,33CD/RDMS C.aritainer D TINSR DC Cable Rd ~~oline Development DTN3RDC Cable Body

S CD'~~~RMS Tech. Eval SCabCAM DTNSRDC .h:Sencn i , t-"

TVNUSC/CTEA .!ar Sys Iemimpar t - 3 (Cancelled) NUSC/CTEALow Wave Number (Can, P ld) NUSC!CTEA

SKClosed Loop i P-ncel le:J NVU;C CTEA1' ! -2r CC ount0roeaa.r

LSNA/AL-16t. r;S f 2nerP 7' P4 K 1C0 -RIM !Cancelle NCS ene'

14~ ~ 6 D 44 Center C -

E xt en ded. Sensor Proiect UCTEAdvdnce liCeron a Dys C~laDper La 's

FP;R - 15S Array N A I!SE A oa' teRadiated Noise I 1/CEA d , ~LU-V 5.a NC IT A P,

CG oul1d (Cancelled, Gould, rnc.1 ~-P NCL, ,C Lau n trmea Lr e S Lm

Arms Towed Cable NC 0;C Cu enasu t,Sc rpp m Pr JTFo Jec t )C an celle) TE A rip

4T TR A r r E end -i Ycar

41 A/N 7,7U -l ITech. Fva!. NCS1C YunrteroepasIr../N AL!,-l~ NCS Ur Pon

.- 47Abras~we Sweeps C ..

A/N ALlu 1)-It fTec h. 3 1)AM~ / Ays-iT N C C

4 -CD /RDIMS DTNSRDC n 9 ~r I sr~'.4 -TB- I NUD -

Ped!uced Diaimpter Array WISC n I m

:4 -10 Advanced MaQruxt. cc wee NCSC ?unr;!1 .AN! S C)R- 1 4A 1,;L D oriar Fyto

4 ~MHc3 Helicopter Tow NAVA I R G~ c an, Plled4W4 ake Survey NESC "nte. e

,5T--1 Nl NC 5C n rMj

14

I Pro Jec.Numiber Program jr g aril a fon S T,~e

'3d41 Cancelled

IS4 -I 'C'TBX Array B EN D 1X Sonfa r p~se34 - 19 Cncel led

b4 -20 AWS0CM- 11, COlD ' f 51onar System

41TB-1b GOULD Gon ar1 S Y e.-,'4-2 M AP NCSC 7- un Ie rlnpaS Ir p 3 yt j 7

UAMRS NC 1)C coun termeas:ure Be5 Fleet Readiness NCSC Dat Cahei

5- S urtas-s (Cancelled) NAVSEAITAIEF-5 T -1 E~vplo. Dev. NUSCITATEF SnrSse

TATr C:anele1 NU " 0TATEF Sonar Sv s e -:.E 0 Caneelled" NuCIAF

!CaIAPeJ DTNSRDC snema'

ANIALS-D NSC M11 C nema GrMAPE NCS C CountIe r me as ureEEL2 NCneld USC.! TATEF

fEdnR- IS NAVSE Uo!UL u'Task.~'1 7ih tjSSC

Plne Duamr Ara N(SC!TAa TEFt's

Min ID Tes NC3 7cne ."JAWL- 61 N C SC Count ermeasu re S-v-t e

;I A/ 37U- C ISC COU n t2r 1e asu r~ e S- !-

4HP 5,To ata GatnerlrQ

IPlane Guard uCS Dat u tU IIIM6-2 115A Tech. Eval. NUSE/AE Data Ga ther ino

WST-14 NUC 0TE Contermesue te

AN1 NRj f NUS C! E o un t e m as!r9St

SIMAS6 Tc. vl NSCAE Data GatheinoML TANUS/IT ATEF SOnar Sse

P6-7A/SO-1 NUSC/TATEF So na r Syste

SI AMNEN/AOS-14 NCSC Coun terllpa --.re Sys tem

Project (ra~a~r

MAP- n rCS T-E 1 q II- iem a z z 1 CESP NU7!TTE I

5EEL !IU, I TTF C'id a STek ACHP Ieh Ev. NuIS i

TAPNUSC!TATEF sofnar Svs'e..iWake Character;Zation NCSC flountermeasur9 vq :

IFleet Readiness NCHC Data Gathnr:

JA/N 37U-1 NCCData Gather~ng4 ir -t o-.A r Tr an Sfer pCS >GatrS

5 TB-t :UTATE

TARP .1USO/TATEF sonar 5'--

MAP CC'utteASW D E M 0 Ca n eiled TN S R I Dadt Gdth !

NUSr "ATEF1 TB - 11UOC IT AT'-'

IA P1MLTA NUCC/TAEF

TARP NuCIAE r v

LEEL 1,1UCC,'TATEFESP VI USC TA TEF S 1) e:MLTA NUSC!T MTEF

7-TARP NUC!ATEF -na ~AOTA N USC' TAT GI ,t

Mi"T A AUSI.'TArEtAN/IAS-I; o riS e rm Ine

'I T-INUSC/TATEF Oh d Sy1! S

D fperatn, Mayport MESC D3ta Ga I );Pi

JlIN Effectiveness NOSE Oo nt Pr Te a s r e

-MiN K -0 3IM t 2 er d'- 7

-DAM 141 1NC LI,o u n t e r.ae~ a

Hvperfiix Nod 4 n OSE t e rqer caTask Lights..1 CS Dtd ] a t her;fmidngh NOTEr Data G rern

Pinger Drop Test NOSE Data GtherinkaiS R14 NCSe :iGahr:

1"1AMNS N C )E Coiunterw~azur e Syser,2 v N11C Cnter.easu-e Syst em

16

TR - 1 I SC TA T EF S o nar y

2* 4' Ar PS .ntter-,,,e as,; rg

-7 Fleet Readi ness NS Dana 3a rFleet Readiness N cSC c a ';a ther ir-gFleel Rea d in es N CSC D a ta G atlh erFle! Readiness IC S C ata ,36,hpelnIFleet Readiness N c IC Da ta 1a ht r r

1ESP V/TARP !!A iNU S C/TA TE F on ar S'MRP Ti TUS B rTAT EF onr :IITARP M I i 1V iUS/TAEF S

TAIRP III 1US!TTEF ona r 3,SUDBu M D RC3mmun o

Vl' "aS Dt -a 3"tIp

Fleet Mod PutterTest NCS L iier-WSE AMCM N 4SC Du 3t p rrnO

3GALL JGAIN 77U-1 'IS Cc~un re ac rg *v te

CO lixie Sable Test IN CSC Cc.u, it p e d u r e v sT,C TARP/T-C 1NUSC TATEF Sonr

M TRC1 Dat a G a~ t mrOOVA-nD D~!TRC n aeU B!GFIQSHER NCSC ra 1i

11NGF 1SHER TI NC "c Data Ga rnerINGFISHER HII NCSC D~ te

.1 U.CI ATEF Soniar yt PiCanc elledI4 Sea ouat. NCSC D)a ta !a e I QF LE ET .~S ~FLTDECGRUALT Dt ahrnSU EG'U A RD SUBLANT JD ata Gua theI.rnQ

ANI~u~-32NCSC 2u fe Me e 2 YT

11 oAVAr T, e aRMES NUSC/TATEF onr r rv pesj

7 T0 S~ CJIT AT E F ow ed A rrtayTtR NUS C/TTE Tow4ed Ar r 1,

5 AOTA NUSO/TATEF pm .KerAnCSDNUSC /TATEF Toroedo Defense

TB -I. 1UC!A1 Towed Arra,3 uB8Gu R D SUBLANT/NSAP Su bmar ineP G,., a

ryT WL:NF nEV. NAVAIR!DTRC Data Gather !mi

A0 AN/ A L(4- 16 NAVAIR/14CSC Countermfeasure st

* 17

Pro~ tecNu m oer P rq ~r am I. Qa ni 7a t~ O.Yl e S ~

"4. 11 NAVAIR/NCSC inre peecPAflNS ?.hVAi1RIN C SC ':l!ierma. I . -:AN/IAOS- NAVAIR,/NCSC ra SseROV NAVAIR NCS C Remote VehicleFLEET MOD CUTTEJR TEST N 'SC Data Gather ic~

I 1 ADCAP NUSIC!,N p Gater Gather iiI S TD NCSC Torpe,4o Ocienz

~ ~TARP NUiSCITATEF Toe. k' Ed

7,PMTC PMTC S ur veilcnAMSSNAVATR/NCQC Cou n1,e r m e a s e y 7

NIR NC N R drp' e D e I pe n* SuR-I '~ USC!IT TEF 'wdA

L IT TKN LITTIN 'jdA-24 SfiURflE D ITRE, e, Aic clit:

FLEET IliiD N CSNIR-? (Caric el ed) YUSC ci~

"Q NUC/TATEF

T ARTLIC/TATEF Ace 4r1j

4 MISS ~~DTRC wneD e'v

'7 18

INITIAL DISTRIBUTION

3CENTER DISTRIBUTION

Copies Copies Code Name

2 ASN 1 00 Graham1 ASN (S&L) 1 01 Metrey1 ASN (RE&S) 1 063 Rishell

1 12 Kerr2 CONR 1 1401 Stilwell

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1 152 Day13 CNO 1 154 McCarthy

1 OP 02 1 1540.3 Heffner1 OP 00K6 1 1541 Webster1 OP 03 1 156 Cieslowski1 OP :37 1 17 Krenske1 OP 071 1 19 Sevik1 OP 098 1 27 Argiro1 OP 983 1 28 Wacker1 OP 21T3 1 522 Holland1 OP 321 OP 353 2 CF wo encl.1 OP 392CI OP 431DI1 OP 04

I NAVOTTSA

1 CINCLANTFLT1 Science Advisor

1 CINCPACFLT1 Science Advisor

1 COMSECONDFLTI Scic-' Advisor

I 1 COMTHIRDFLT1 Science Advisor

I1 COMFAIRMED1 Science Advisor

1 COMSEVENTHFLT1 Science Advisor

1 NAVAL AIR FORCE ATLANTICI Science Advisor

1 NAVAL AIR FORCE PACIFICI Science Advisor

I

COMNAVSURFLANT

1 Science Advisor

COMNAVSURFPAC

1 Science Advisor

COMNAVSUBLANT1 Science Advisor

COMNAVSUBPACI Science Advisor

COMMANDING GENERALFLEET MARINE FORCE, ATLANTIC1 Science Advisor ICOMMANDING GENERALFLEET MARINE FORCE, PACIFIC

I Science Advisor

COMMANDERMINE WARFARE COMMAND1 Science Advisor

COMMANDERUS NAVAL FORCES CENTRAL COMMAND

I Science Advisor

SPAWAR I1 DNL 005

SSPO I1 2521 Cheng-Chung Chi

2 NAVAIR1 APC2101 04

6 NAVSEA I1 SEA 05R1 SEA 55NI SEA 63D I1 PMS 4041 PMS 4071 PMS 415

3 NADC1 90C Probert (Key West, FL)1 5011 Bazow (Warminster, PA)1 5012 Swyers (Warminster,PA)

3 NCEL 1I L43 Meggitt1 L44 Palo1 L65 Ward

I

I

- NCSC1 Cotton, C.

1 NOAA

1 NAVOCEANO1 OW Bunce

1 NORDA

7 NOSC1 1802 Boyle1 60 Gorden1 70 Shutters1 90 Lamaire1 64 Juhasz1 94 Schlosser1 71 Ball

2 NRL1 5000 Rojas

1 5170 Steiger

10 NUSC/NLI Von Winkle1 Manganelli1 Geary1 Connolly1 Bakewell1 Varley1 Marsh1 Freeman1 NawrockiI Seaman

NUSC/FL2

1 IJSC'iWP

.3 NSWC1 (White Oak)1 (Dahlgreen)1 (Ft. Laud. Det.)

5 PMTC1 001 021 30001 31001 3200