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

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Bill Stranges Colleen Adamson Andrea Nowicki Deanna Ohwevwo June 2002

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  1. 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

  2. Outline • Purpose • Approach • DD-963 class characteristics • Data scrubbing • Results • Summary

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

  4. 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 Costs 3% Basic Construction 52% Change Orders 2% Technology Insert 1% Electronics 11% Propulsion 21% HM&E 9% Other Costs 1% Direct Labor 21% Material Costs 36% Overhead Costs 30% FCCM & Profit 13% PROD*- 37%

  5. 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

  6. DD 963 Class Characteristics History 1984 DD-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 1986 Vertical Launch System (VLS) was retrofitted to the 24 ships without ABL 1988 USS Fife (DD 991) becomes forward based in Yokosuka, Japan 1990s Persian Gulf War and maintenance of the Iraq No-Fly Zones scrambles the operational tempo of all ships 1990 USS Hewitt (DD 966) becomes forward based in Yokosuka, Japan 1991 USS Olendorf (DD 972) returns from Yokosuka, Japan to San Diego

  7. DD 963 Class Characteristics History (continued) 1992 USS O’Brien (DD 975) becomes forward based in Yokosuka, Japan 1996 Condition-based maintenance philosophy began USS Fife (DD 991) returns from Yokosuka, Japan to San Diego 1998 Ships 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 2001 DD-980 and 981 turned over to Naval Reserve Force

  8. DD-963 Class CharacteristicsTechnical Parameters Overall Length 563 feet Water Line Length 529 feet Beam 55 feet Full Displacement 9,300 tons Dead Weight 2,400 tons Speed 33 knots Crew 30 Officer 352 Enlisted

  9. 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)

  10. DD-963 Class CharacteristicsShip Homeports JAPAN 3 ships 2 ships 2 Ships 5 ships 9 ships 2 ships 1 ship

  11. 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

  12. 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

  13. 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

  14. Results

  15. 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

  16. 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

  17. 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

  18. Depot Level Maintenance Cost Class Average Reflects average D-level maint $ for 18 ships per year; FY93 and FY97 each have only 17 ships

  19. Ship Age vs. O-Level Maintenance CostFY91-00 DD 963 Commissioned in 1975 Each point represents a cost per yearly age

  20. Ship Age vs. I-Level Maintenance CostFY91-00 Each point represents a cost per yearly age

  21. Ship Age vs. D-Level Maintenance Cost FY91-00 Each point represents a cost per yearly age

  22. 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 Adamson adamson.colleen@hq.navy.mil Andrea Nowicki nowicki.andrea@hq.navy.mil Deanna Ohwevwo ohwevwo.deanna@hq.navy.mil

  23. Backups

  24. 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

  25. 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

  26. 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

  27. SSN Age vs. O-Level MaintenanceFY91-00

  28. SSN Age vs. I-Level MaintenanceFY91-00

  29. Average Steaming Hours

  30. Average Steaming Hours Underway

  31. Average Steaming Hours Not Underway