DD-963 Spruance Class Ship Aging Vs Maintenance Expenditures from FY91 to FY00
Download
1 / 31

Bill Stranges Colleen Adamson Andrea Nowicki Deanna Ohwevwo June 2002 - PowerPoint PPT Presentation

DD-963 Spruance Class Ship Aging Vs Maintenance Expenditures from FY91 to FY00 SCEA 2002 National Conference Bill Stranges Colleen Adamson Andrea Nowicki Deanna Ohwevwo June 2002 Outline Purpose Approach DD-963 class characteristics Data scrubbing Results Summary Purpose

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha

Download Presentation

Bill Stranges Colleen Adamson Andrea Nowicki Deanna Ohwevwo June 2002

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


DD-963 Spruance Class Ship Aging Vs Maintenance Expenditures from FY91 to FY00

SCEA 2002 National Conference

Bill Stranges

Colleen Adamson

Andrea Nowicki

Deanna Ohwevwo

June 2002


Outline

  • Purpose

  • Approach

  • DD-963 class characteristics

  • Data scrubbing

  • Results

  • Summary


Purpose

  • Determine if Annual Ship Maintenance Expenditures are Correlated to Ship Aging for the DD-963 Class of Ships


Example of Ship Life Cycle Cost Decomposition

MISSION PERSONNEL-

UNIT LEVEL CONSUMPTION-

INTERMEDIATE MAINT-

DEPOT MAINTENANCE-

SUSTAINING SUPPORT-

INDIRECT SUPPORT-

OFFICERS

ENLISTED

CIVILIANS

CONTRACTOR

POL

CONSUMABLES

TRAINING EXPENDABLES

O&S ~ 60%

HULL/GFE-

PROPULSION-

GOVERNMENT-

GOV OVERSIGHT-

R&D - <3%

Plan Costs3%

Basic Construction52%

Change Orders2%

Technology Insert1%

Electronics11%

Propulsion21%

HM&E9%

Other Costs1%

Direct Labor21%

Material Costs36%

Overhead Costs30%

FCCM & Profit13%

PROD*- 37%


DD 963 Class Characteristics Background

  • 31 ships in class

  • All built at Ingalls Shipbuilding

  • First ship in class commissioned in FY75

  • Several ships forward deployed to Japan

    • DD-966, 972, 975, 985, 991

  • Maintenance data from VAMOSC (FY84-FY00)

    • Organizational level (O-level) maintenance costs

    • Intermediate level (I-level) maintenance costs

    • Depot level (D-level) maintenance costs


DD 963 Class Characteristics History

1984DD-974, 976, 979, 983, 984, 986, 990 received Armored Box Launchers (ABL) to launch Tomahawk Cruise Missiles

USS Olendorf (DD 972) becomes forward based in Yokosuka, Japan

1986Vertical Launch System (VLS) was retrofitted to the 24 ships without ABL

1988USS Fife (DD 991) becomes forward based in Yokosuka, Japan

1990sPersian Gulf War and maintenance of the Iraq No-Fly Zones scrambles the operational tempo of all ships

1990USS Hewitt (DD 966) becomes forward based in Yokosuka, Japan

1991USS Olendorf (DD 972) returns from Yokosuka, Japan to San Diego


DD 963 Class Characteristics History (continued)

1992USS O’Brien (DD 975) becomes forward based in Yokosuka, Japan

1996Condition-based maintenance philosophy began

USS Fife (DD 991) returns from Yokosuka, Japan to San Diego

1998Ships with ABL, which were not upgraded to VLS due to budget constraints, were decommissioned

USS Hewitt (DD 966) returns from Yokosuka, Japan to San Diego

USS Cushing (DD 985) becomes forward based in Yokosuka, Japan

2001DD-980 and 981 turned over to Naval Reserve Force


DD-963 Class CharacteristicsTechnical Parameters

Overall Length

563 feet

Water Line Length

529 feet

Beam55 feet

Full Displacement9,300 tons

Dead Weight2,400 tons

Speed33 knots

Crew30 Officer

352 Enlisted


DD-963 Class CharacteristicsMajor Weapons Systems

Antenna

AN/SPS-55

AN/URN-20 TACAN

MK 15

Phalanx

(Port)

MK 22

TAS

AN/SPG-60

AN/SPS-400

NSSMS

Launcher

AN/SLQ-32

(Port&STBD)

AN/SPQ-9A

MK 95

NSSMS

Director

AN/SQR-15

TASS

MK 15 Phalanx

(STBD)

MK 45

5”/54

Gun

MK 45

5”/54

Gun

LAMPS

RAM

MK 141

Harpoon

(Port & STBD)

MK 32 SVTT

(Port & STBD)

AN/SLQ-25 NIXIE

AN/SQR-19 TACTAS

MK 36 SRBOC

DLS

(Port & STBD)

MK 41

VLS

AN/SQS-32

MK 36 Mod 6

SRBOC

MK 15 Phalanx

AN/SLQ-32V(2)

MK 45 5”/54

Gun

MK 41 VLS

MK 45 5”/54

Gun

NSSMS

Launcher

MK 95 NSSMS

Director

MK 141

Harpoon

MK 15 Phalanx

AN/SLQ-32V(2)


DD-963 Class CharacteristicsShip Homeports

JAPAN

3 ships

2 ships

2 Ships

5 ships

9 ships

2 ships

1 ship


Approach

  • FY84-00 VAMOSC data collected and analyzed

  • Potential trends identified

  • Secondary review yielded discrepancy in data

    • VAMOSC source data repositories changed (3M)

  • FY84-90 VAMOSC data removed

  • Analysis performed using FY91-00 VAMOSC data


Data Scrubbing

  • Forward based ships were removed from analysis

    • Depot data do not include cost of work done by Japanese

    • Forward based ships have higher OPTEMPO

  • DD-987 removed from data set due to major corrective maintenance problems

    • O-Level maintenance in FY91 = $10.7M (class avg = $4.1M)

    • I-Level maintenance in FY95 = $6.3M (class avg = $584K)

    • I-Level maintenance in FY96 = $42.3M

  • DD-973 and DD-992 removed from FY97 and FY93 data respectively due to being “stuck” in availabilities in Pearl Harbor

    • DD-973 O-Level maintenance in FY97 = $9.1M

    • DD-973 I-Level maintenance in FY97 = $954K

    • DD-992 O-Level maintenance in FY93 = $14.2M


Data Scrubbing (Cont.)

  • Seven decommissioned ships removed from analysis

    • Low or negative maintenance costs in last few years of ships’ lives

  • Incomplete O&I maintenance data prior to FY91

    • 3M system upgraded in FY91

  • Ships are all relatively the same

    • Same hull structure, engineering, systems, OPTEMPO, maintenance schedule


Results


Maintenance Cost (O+I+D) Class Average

No real increase in maintenance $ over time

Reflects average maintenance cost for 18 ships per year; FY93 and FY97 each have only 17 ships


Organizational Level Maintenance CostClass Average

Before 3M System Update

After 3M System Update

Reflects average O-level maint $ for 18 ships per year; FY93 and FY97 each have only 17 ships


Intermediate Level Maintenance CostClass Average

Before 3M System Update

After 3M System Update

Reflects average I-level maint $ for 18 ships per year; FY93 and FY97 each have only 17 ships


Depot Level Maintenance Cost Class Average

Reflects average D-level maint $ for 18 ships per year; FY93 and FY97 each have only 17 ships


Ship Age vs. O-Level Maintenance CostFY91-00

DD 963 Commissioned in 1975

Each point represents a cost per yearly age


Ship Age vs. I-Level Maintenance CostFY91-00

Each point represents a cost per yearly age


Ship Age vs. D-Level Maintenance Cost FY91-00

Each point represents a cost per yearly age


Summary

  • No apparent correlation between ship aging and maintenance expenditures for corrective maintenance.

  • Anecdotal information from NAVSEA PMS 400 indicates a backlog of repairs existing for DD-963 class of ships.

    • Difficult to track.

  • No meaningful metric to assess ships readiness and aging.

    • Existing databases highly subjective.

  • Please address additional questions to:

    Bill Stranges stranges.william@hq.navy.mil

    Colleen Adamsonadamson.colleen@hq.navy.mil

    Andrea Nowickinowicki.andrea@hq.navy.mil

    Deanna Ohwevwoohwevwo.deanna@hq.navy.mil


Backups


80% O MORE of O&S Costs Locked In

$

Procurement

O&S

R&D

Disposal

0

5

10

15

20

25

30

35

40

Years

Life Cycle Cost Breakout

*From ARO TOC brief


O-level Maintenance Manhours Class Average (18 ships)

Reflects avg O-level maint mhrs for 18 ships per year; FY93 and FY97 each have only 17 ships


I-level Maintenance Manhours Class Average (18 ships)

Reflects avg I-level maint mhrs for 18 ships per year; FY93 and FY97 each have only 17 ships


SSN Age vs. O-Level MaintenanceFY91-00


SSN Age vs. I-Level MaintenanceFY91-00


Average Steaming Hours


Average Steaming Hours Underway


Average Steaming Hours Not Underway


ad
  • Login