《航空器系统工程学》（英文版）Briefing Summary

c Soft FIA-18A/B/C/D Flight Control Computer SMc.叭 Software Upgrade Military Aircraft System Verification and validation MIT 16.885J/ESD, 35J Fal|2003 CDR Paul sohl Commanding officer United States Naval Test Pilot school NA∨A

V10.7 F/A-18A/B/C/D Flight Control Computer Software Upgrade Military Aircraft System Verification and Validation MIT 16.885J/ESD.35J Fall 2003 CDR Paul Sohl Commanding Officer United States Naval Test Pilot School

NAVAIR Briefing Summary US Navy acquisition Process Overview F/A-18 Aircraft Overview Flight Control Law Software Upgrade Program Requirements Constraints and challenges Results Conclusions

Briefing Summary • US Navy Acquisition Process Overview • F/A-18 Aircraft Overview • Flight Control Law Software Upgrade Program – Requirements – – Results • Conclusions Constraints and Challenges

Defense Acquisition Management Framework Technology Opportunities PProcess entry at Milestones A, B, or C EEntrance criteria met before entering phases User Needs EVolutionary Acquisition or Single Step to Full Capability A B lOc FOC Concept Technology System System LRIP Full-Rate Prod& Sustainment Disposal Exploration Development Integration Demonstration Deployment Critical Desian Decision Review Review Concept System Development Operations Tech Development Demonstration Production Deployment Support Pre-Systems Systems Acquisition Sustainment Acquisition Demonstration, Engineering lOC: Initial Operational Capability Development, LRIP& Production FOC: Full Operational Capability Initial Capabilities Capabilities Development. Capabilities Production ted approved by Document (ICD) Document(CDD) Document(CPD) operational validation authority Relationship to Requirements Process

Defense Acquisition Management Framework Defense Acquisition Management Framework A B IOC Tech Development Operations & Support C Technology Opportunities & User Needs Concept Exploration Technology Development Demonstration LRIP Full-Rate Prod & Critical FRP FOC • • • Capability Acquisition (Demonstration, Engineering IOC: Initial Operational Capability FOC: Full Operational Capability Validated & approved by Initial Capabilities Document (ICD) Capabilities Development Document (CDD) Capabilities Production Document (CPD) Concept & System Development & Demonstration Production & Deployment System Integration System Deployment Design Review Decision Review Sustainment Disposal PProcess entry at Milestones A, B, or C EEntrance criteria met before entering phases EEvolutionary Acquisition or Single Step to Full Pre-Systems Systems Acquisition Sustainment Development, LRIP & Production) operational validation authority Relationship to Requirements Process

System Development Demonstration Phase B System System Integration Demonstration Critical Design Review System Integration System Demonstration Enter: PM has technical solution but Enter Prototypes demonstrated in has not integrated subsystems into intended environment complete system Activities: Complete Activities: System Integration of development. DT/OT/LFT&E demonstrated subsystems and Exit: System demonstration in components. Reduction of integration intended environment using isk engineering development Exit: Demonstration of prototypes in models, meets validated relevant environment requirements

System Development & Demonstration Phase System Development & Demonstration Phase B System Demonstration System Integration Critical Design Review System Integration System Demonstration Enter: PM has technical solution but Enter: Prototypes demonstrated in has not integrated subsystems into intended environment complete system z Activities: Complete z Activities: System Integration of development. DT/OT/LFT&E demonstrated subsystems and Exit: System demonstration in components. Reduction of integration intended environment using risk engineering development Exit: Demonstration of prototypes in models; meets validated relevant environment re quirements

System Development Demonstration Phase Purpose: To develop a system Reduce program risk Ensure operational supportability Ensure design for producibility Assure affordability Demonstrate system integration interoperability, and utility

System Development & Demonstration Phase System Development & Demonstration Phase Purpose: • To develop a system • Reduce program risk • Ensure operational supportability • Ensure design for producibility • Assure affordability • Demonstrate system integration, interoperability, and utility

System Integration Purpose: Integrate subsystems- reduce systems-level risk Key Activities Demonstrate prototype articles Conduct an Early Operational Assessment (EOA) Prepare for Critical Design Review (CDR) Prepare RFP for next effort/phase

System Integration System Integration • Purpose: Integrate subsystems – reduce systems-level risk • Key Activities: í Demonstrate prototype articles í Conduct an Early Operational Assessment (EOA) í Prepare for Critical Design Review (CDR) í Prepare RFP for next effort/phase

System Demonstration Purpose Demonstrate the ability of the system to operate in a useful way consistent with the validated KPps Key Activities Conduct extensive testing: developmental operational, and survivability/lethality testing, as appropriate Conduct technical reviews, as appropriate Demonstrate system in its intended environment Prepare RFP for Low Rate Initial Production Prepare for Mile lestone c Update: Information requirements

System Demonstration System Demonstration • Purpose: Demonstrate the ability of the system to operate in a useful way consistent with the validated KPPs. • Key Activities: í Conduct extensive testing: developmental, operational, and survivability/lethality testing, as appropriate í Conduct technical reviews, as appropriate í Demonstrate system in its intended environment í Prepare RFP for Low Rate Initial Production í Prepare for Milestone C í Update: Information requirements

Summary: System Development Demonstration Phase May consist of System Integration and System Demonstration depending on technology maturity affordability System demonstrated in the intended environment: meets validated requirements; industrial capability available: meets exit criteria Manufacturing risk low Bottom Line: System ready to begin LRIP?

Summary: System Development & Demonstration Phase Summary: System Development & Demonstration Phase • May consist of System Integration and System Demonstration depending on: – technology maturity – affordability • System demonstrated in the intended environment; meets validated requirements; industrial capability available; meets exit criteria • Manufacturing risk low Bottom Line: System ready to begin LRIP?

F/A-18ABCD“ Hornet~A Supersonic, Multi-role, Combat Aircraft Introduced to fleet in 1983 Relevant Design Features Fly-by-Wire Flight Controls Twin vertical stabilizers Leading Edge EXtension(LEX Two turbofan engines SuperHornet(E/F Models) Introduced to fleet in 2001

F/A-18A/B/C/D “Hornet” • Supersonic, Multi-role, Combat Aircraft – Introduced to fleet in 1983 • Relevant Design Features – “Fly-by-wire” Flight Controls – Twin Vertical Stabilizers – Leading Edge Extension (LEX) – Two Turbofan Engines • SuperHornet (E/F Models) – Introduced to fleet in 2001

NAVAIR Flight Control System Two Digital Flight Control Computers FCc) Four separate channels Control Augmentation System Augments basic airframe stability Gains scheduled to enhance flying qualities Provides departure resistance Provides protection against overstress Actively controls structural mode interaction

Flight Control System • Two Digital Flight Control Computers (FCC) – Four separate channels • Control Augmentation System – Augments basic airframe stability – Gains scheduled to enhance flying qualities – Provides departure resistance – Provides protection against overstress – Actively controls structural mode interaction