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Total Ship Systems Engineering
CPCXCombined Patrol Combatant
Total Ship SystemsEngineering
Capstone Design ProjectDecember 1995
Total Ship Systems Engineering
CPCX Design Teams
Navy VariantEric Anderson, LT USN
Bob Armstrong, LT USN
Jim Hurley, LT USCG
Robert Jones, LT USN
Coast Guard VariantJay Renken, LCDR USN
John Comar, LT USCG
Helen Kilty, LT USCG
Thomas Jean, LT USN
Total Ship Systems Engineering
PROBLEM STATEMENT
Design a dual service combatant for Navyand Coast Guard use.Design two variants of one ship.Minimize cost and manning.IOC 2010
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Design Process
Preliminary Design
Feasibility Study
Functional Analysis
Operational Requirements Document(ORD)
Mission Need Statement(MNS)
Faculty Direction
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Design Philosophy
1. Meet or exceed ORD specifications2. High Survivability/Maximum Mission Effectiveness3. Reduced Manning/High Level of Automation4. Low Maintenance/Improved Reliability5. Improvement of Crew Habitability (Quality of Life)
Commonality Concept
CommonRequirements
USNRequirements
USCGRequirements
USNPayload
USCGPayload
CommonFeatures of
Variants
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General Ship DescriptionNavy Coast Guard398 ft Length Overall 398 ft
15ft 11in Draft 15ft 9 in51 ft Beam 51 ft
3980 LT Displacement 3934 LT6600nm@14 kts Endurance 8900nm@14kts
25 kts Sustained Speed 25 kts110 Crew 106
28,800 SHP 28,800
Payload - Navy VariantAAW– X Band Phased Array Radar (XPAR)– 37 cell Vertical Launch System (VLS)– Rolling Airframe Missile (RAM) and Launcher– 2, 40mm multi-purpose guns
ASW– Active Towed Array Sonar (ATAS)– 2 Surface Vessel Torpedo Tube mounts (SVTT)
ASUW– Panther Helicopter - Combat Version of HH-65– 5” 54 MK 45 gun
EW– SLQ-32 (V3)
Payload - Navy VariantContinued
Mine Warfare– SH-100 mine sonar
Communications– Joint Maritime Command Information
System– Advanced Combat Direction System– Cooperative Engagement Capability– Tactical Data Links
Operations Other than War– 2 Davit launched small boats
Payload - Coast Guard VariantAAW– X Band Phased Array Radar (XPAR)– Rolling Airframe Missile (RAM) and Launcher– 2, 40mm multi-purpose guns
ASW– Not a mission area
ASUW– Dolphin Helicopter HH-65
EW– SLQ-32 (V3)
Mine Warfare– SH-100 mine sonar
Payload - Coast Guard VariantContinued
Communications– Joint Maritime Command Information System– Advanced Combat Direction System– Cooperative Engagement Capability– Tactical Data Links
Operations Other than War– 2 Davit launched small boats– 2 Stern launched small boats– Crane and buoyhandling equipment– Added fuel capacity
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Mission Need Statement(Faculty Direction)
World View
Navy Guidelines
Coast Guard Guidelines
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World View(Faculty Direction)
Oceanic Naval warfare is unlikelyOperations Other than War (OOW) are likelyemployments for U.S. shipsRegional conflicts are likely between third worldnationsTight Defense BudgetConsolidation of roles of the armed forcesLaw Enforcement at sea will become morefrequent and will be conducted against moreheavily-armed criminals
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Navy Guidelines(Faculty Direction)
Deployable and Fleet Compatible
Operate in Littoral Environments
Independent as well as Battle GroupOperations
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Coast Guard Guidelines(Faculty Direction)
Detect, Intercept, and Defeat Well-Equipped Drug Smugglers and Pirates
Interdict Illegal Immigration andSmuggling
Perform Search and Rescue
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Operational RequirementsDocument
Design ConstraintsSpecific Design Requirements
Projected Threat Summary
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Design Constraints
CostDisplacementConvertibility
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Specific Design Requirements
CommonNavyCoast Guard
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Projected Threat Summary
Law Enforcement - IndependentOperationsLow Intensity Conflict - Independent andGroup OperationsMajor Regional Conflict (MRC) - ForceOperations
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Functional Analysis
Functional AreasDetectControlEngage
Warfare AreasAAWASuWASWStrikeMIWELTOOWEW
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Combat System Elements
RadarsPassive SensorsSonarsGunsMissilesSmall BoatsMine Hunting DevicesArchitecture
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Combat System Evaluation
Measures of Effectiveness
Combat System Suite Options
Payload selection
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Measures of Effectiveness
NavyStrikeAir EngagementSub-SurfaceEngagementNGFSPatrol AreaConvertibilityBoarding
Coast GuardAir EngagementPatrol AreaConvertibilityBoarding
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Strike Effectiveness
Nm = number of strike missilesR = range of missile (km)Pt = ability to targetCEP = circle error probabilityCS = ship cost (M$)Nk = number of missiles needed for kill
M O EN R P
CEP CS Nm T
K=
* ** *
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Combat System SuiteSelection
Functional Analysis & System Tradeoff Study3 Combat System Suite Options/VariantMOE AnalysisFinal Suite Selection
Payload - Navy VariantAAW– X Band Phased Array Radar (XPAR)– 37 cell Vertical Launch System (VLS)– Standard, Enhanced Sea Sparrow, Harpoon
and Tomahawk– Rolling Airframe Missile (RAM) and Launcher– 2, 40mm multi-purpose guns
ASW– Active Towed Array Sonar (ATAS)– 2 Surface Vessel Torpedo Tube mounts (SVTT)
ASUW– Panther Helicopter - Combat Version of HH-65– 5” 54 MK 45 gun
Payload - Navy VariantContinued
EW– SLQ-32 (V3)
Mine Warfare– SH-100 mine sonar
Communications– Joint Maritime Command Information System– Advanced Combat Direction System– Cooperative Engagement Capability– Tactical Data Links
Operations Other than War– 2 Davit launched small boats
Payload - Coast Guard Variant
AAW– X Band Phased Array Radar (XPAR)– Rolling Airframe Missile (RAM) and Launcher– 2, 40mm multi-purpose guns
ASW– Not a Mission Area
ASUW– Dolphin Helicopter HH-65
EW– SLQ-32 (V3)
Mine Warfare– SH-100 mine sonar
Payload - Coast Guard VariantContinued
Communications– Joint Maritime Command Information System– Advanced Combat Direction System– Cooperative Engagement Capability– Tactical Data Links
Operations Other than War– 2 Davit launched small boats– 2 Stern launched small boats– Crane and buoyhandling equipment– Added fuel capacity
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Combat Systems Architecture
Fiber Optic Ring BUSDistributed Data ProcessingMM I Modules– Detect & Track– Correlate– Command & Decision– Weapons Control
Two CICs in Separate Enclaves
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Architecture Advantages
SurvivabilityAutomatic Readiness Assessment, FaultDetection, and LocalizationEmbedded Training and Support ServiceManagement
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Naval ArchitectureNAVY
LBP 380’Beam 51’Hull Depth (amidships) 30’Draft 15’ 11’Prismatic Coef., Cp .576Max Section Coef., Cm .796Waterplane Coef., Cwp .733
Coast Guard
LBP 380’Beam 51’Hull Depth (amidships) 30’Draft 15’9”Prismatic Coef., Cp .576Max Section Coef., Cm .796Waterplane Coef., Cwp .733
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Stability
USN Parameter USCG
7.67’ GMt 7.68’
.150 GMt/Beam .151
18.34’ KG 18.41’
5.075’ @45.97 deg.
Max RightingArm
5.125’ @46.06 deg.
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Hull, Mechanical, and ElectricalOptions
Mechanical Drive Vs Electric DriveSingle Shaft Vs Multi ShaftLevel of AutomationType of Prime Mover (Gas Turbine or Diesel)Power Distribution (Conventional, Power off MainBus, Propulsion Derived Ship Service)Compartmentalized Auxiliaries Vs CentralizedAuxiliaries
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Hull, Mechanical, and ElectricalSelection
2 Diesels, 2 Gas Turbine prime movers usingCombination Diesel and Gas Turbine (CODAG)configurationElectrical Drive Transmission2 Shafts2 Fixed Pitch Propellers driven by Fixed PoddedPropulsorsCommon Ship Service and Power DistributionSystemRemote Monitoring and AutomationZonal Electrical Distribution
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Manning
NavyDepartment CrewShip Support 13Combat Sys 52Engineering 34Air Det. 11
TOTAL 110
Coast GuardDepartment CrewShip Support 14Combat Sys 31Engineering 34Air Det. 6Operations 21TOTAL 106
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Convertibility(four week shipyard availability)
Navy1. 5 inch Gun
2. VLS launcher
3. ATAS4. Torpedo Space5. Missile Illuminators
Coast Guard1. Buoy handling Crane Environmental clean-
up gear2. Fuel Tank, Buoy
Handling Equipment3. Two Additional RHI’s4. Prisoner Containment
Space
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Survivability
Signature ReductionRedundancyUninterruptable Power SupplyCEC
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Signature Reduction
Radar Cross Section (RCS)InfraredAcoustic Noise
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Redundancy
Two Physically Separate CICsTwo Engine Rooms separated by threebulkheadsDC Zonal Electrical DistributionRing Information Network with multipleredundant ringsDistributed Combat System DataProcessing
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Uninterruptable Power Supply
30 Ton Battery provides 1500 KW of hold-up powerAllows for Prime Mover restarts withoutloss of Combat System continuityContinued Operation of Combat Systemsafter complete loss of Main EngineeringSpaces
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Cooperative EngagementCapability
Common Composite “Big Picture”Queued SearchQueued EngagementFire On Remote
Summary of ShipCharacteristics
Navy Requirement Coast Guard
6000nm@14kts6600nm@14kts
EnduranceRequiredAchieved
8000nm@14kts8900nm@14kts
$450 million$422 million
Average CostRequiredAchieved
$375 million$309 million
4000LT3980LT
DisplacementRequiredAchieved
4000LT3934LT
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Further Study
Single MastCoast Guard over buying sensorsUpper limit of cost and weight margins
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Conclusion
Dual Service CombatantMeets the operational requirements of both Navyand Coast GuardEase of ConvertibilityNot “Littorally Challenged”
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CPCXCombined Patrol Combatant
Total Ship SystemsEngineering
Capstone Design ProjectDecember 1995