Safety Process For Navy Gun and Ammunition Systems • Eileen McConkie [email protected] – Naval Surface Warfare Center Dahlgren Division • Dennis Bushor – Naval Surface Warfare Center Dahlgren Division • John Filo – Naval Surface Warfare Center Dahlgren Division Agenda • Purpose • Policies • Define Safety • Gun System Safety Process – Hardware – Software • Ammunition Safety • Hazards – Identification – Mitigation – Risk Acceptance • Independent Review • Summary 2 Purpose • Identify safety processes involved in the qualification of all gun systems and their associated ammunition for U.S. Navy – Gun System • Gun Mount (GM) • Fire Control System (FCS) • Associated Systems – Ammunition Safety • Fuze • Energetic • Transportation and Storage System Safety Program Plan Developed for all Gun and Ammunition Systems 3 Safety Process • All Gun Systems and Ammunition Need to go Through a Rigorous Safety Process Before Deployment – Gun Systems for Navy Platforms • New Development • Previously Developed Systems – New Ammunition for New or Existing Gun Systems – Updates/Upgrades to Deployed Systems – Deployment of Existing Gun Systems on New Platforms 4 Government and Navy Safety Policy DDOODD 66005555..99 DDESB Service Component Explosives Safety Oversight DDOODDDD 55000000..11 DOD Acquisition Process DDOODDII 55000000..22 Methodology for Implementing 5000.1 DDOODD 55000000..22--RR Acquisition Procedures Guidebook SSEECCNNAAVVIINNSSTT 55000000..22CC Mandatory Procedures for Implementation Policy for Safety, Mishap Prevention, SSEECCNNAAVVIINNSSTT 55110000..1100HH Occupational Health, and Fire Prevention OOPPNNAAVVIINNSSTT 55110000..2244AA Navy System Safety Program OOPPNNAAVVIINNSSTT 88002200..1144 Explosives Safety Policy Requirements for System Safety Program NNAAVVSSEEAAIINNSSTT 55110000..1122 Department of the Navy Weapon Systems NNAAVVSSEEAAIINNSSTT 88002200..66EE Explosives Safety Review Board IImmpplleemmeennttaattiioonn ooff GGoovveerrnnmmeenntt SSaaffeettyy PPoolliicciieess EEnnssuurreess SSaaffeettyy ooff SSyysstteemm OOnnbbooaarrdd SShhiipp 5 System Safety Defined • What exactly IS a System Safety Issue? –A situation in which own-platform, own- platform personnel, or friendly assets are at risk from onboard equipment / systems. •Personnel •Own-Ship Damage •Friendly Asset •Environment • What exactly IS NOT a System Safety Issue? –Operational Effectiveness and Survivability Issues •Operational Effectiveness •Survivability 6 Gun System Safety Analysis Process Safety Disposition Program Definition Detailed Safety Analyses Top Level Spec. Interface Design Spec. Historical data Computer Program Performance Specification STANAG 4404 Safety Analyses Critical Computer Ada Mitre and Functions List Program (CP) C/C++ guidelines Safety Safety Requirements Testing MIL-STD-882 System Safety Program Preliminary Requirements Special Hazard System Hazard Hazard Analysis Analyses Analysis NAVORD OD 44942 Preliminary Subsystem Hazard Operating & Support Weapons Systems Safety Guidelines Hazard List Analyses Hazard Analysis Handbook Safety Disposition 7 Gun System Hardware Safety • Apply General Guidelines for Electronic Equipment (MIL-HDBK-454). • Inspect hardware for validation of hardware safety requirements (regardless of design phase). • Analyze equipment motion • Identify sources of radiated energy 8 System Control Software Safety Main emphasis of gun system safety. • Analyze Software IAW NATO Standardization Agreement (STANAG) 4404. • Apply lessons learned from previous like systems. • Adhere to C++ safety coding guidelines • Address Safety Concerns with – Java – Operating System – Middleware – Firmware – Development tools • Analyze test environment • Determine the Level of Rigor of Software testing 9 Ammunition Safety • Design to Proven Standards – Fuze design MIL-STD-1316 – Electronic Safe & Arm Device (ESAD) WSESRB TM – Ignition Design MIL-STD-1901 – Initiator MIL-DTL-23659 • Ensure that the Energetic Compounds are Stable – NAVSEAINST 8020.5 and STANAG 4170 • Analyze Design to Mitigate Hazards – Eliminate Single Point Failures – MIL-STD-882D Safety Analyses – Special Safety Analyses – Structural Analyses 10