Navy Responsible Use Policy & Halon Alternative Implementation Opportunities Presented 29 August 2000 at: FAA’s International Aircraft Systems Fire Protection Working Group Meeting Presented by:Bill Leach Naval Air Systems Command Fire Protection Team Leader

NAVAIR FIRE PROTECTION TEAM NAWC Aircraft Division: Lakehurst NAWC Aircraft Division: Pax River NAWC Weapons Division: China Lake Naval Research Laboratory Naval Aviation Depots

MISSION To ensure that all Naval aircraft are protected with adequate on-board and ground-based fire protection systems. To develop and implement halon alternative systems which do not diminish the current levels of aircraft survivability and aircrew safety.

HALON 1301 NAVY RESPONSIBLE USE POLICY 1- STOCKPILE Support of In-Service Fleet Projected to 2032, if Necessary 2- MINIMIZE USE New Maintenance Features Recycle / Reclaim / Reuse 3- ALTERNATIVE R&D Develop Acceptable Alternatives Implement Acceptable Alternatives

IMPLEMENTING HALON ALTERNATIVES --- THE EASY WAY --- New Aircraft Navy Success: V-22 & H-1 Upgrade Apply HFC-125 Design Equation Totally Familiar System Design Approach and Qualification Procedure {Note: Future discussion forthcoming to reconcile DOD equation with FAA number}

IMPLEMENTING HALON ALTERNATIVES --- THE CLEVER WAY --- Aircraft with Redundant Halon Systems In-Service Aircraft –Helos and Some Fixed Wing Navy Success: CH-60 Rewire Discharge Logic and Apply HFC-125 Design Equation –Dual Shot to Single Shot System Historical Mishap Evaluation to Convince Safety Community of Acceptability

IMPLEMENTING HALON ALTERNATIVES --- THE CHALLENGING WAY --- Aircraft w/o Redundant Halon Systems Rest of In-Service Fleet Navy Success: F/A-18E/F HFC-125 with Redesigned Plumbing Other Options Also Researched –Gas Generator & Fine Water Mist Systems Baseline to Halon, then Qualify by Fire

OTHER-THAN-ENGINE Dry Bays (Threat of Explosion) Navy Success: F/A-18E/F & V-22 Inert Gas Generator System –“Muscled” Approach, Currently Evaluating Enhancements –Saved V-22 Ship 10

OTHER-THAN-ENGINE Fuel Tanks –Long History of Protection OBIGGS, Foam –On-going Development Efforts Active System –Applicant for ARAC Membership (Don Bein)

OTHER-THAN-ENGINE Hidden Compartments / EE Bays –Recent Testing –Fine Water Mist System –Aerosol Generator System

CONCLUSIONS Halon Alternative R&D Has Been Very Fruitful –Still Research Opportunities to Investigate Work Remaining: More Engineering than Science –Optimize Storage & Delivery vs. New Discoveries Acceptable Halon Alternative Solutions are Currently Available and Flying –Halon is No Longer a Technical Requirement for New Aircraft Designs –Implementation of Halon Alternatives Is Proven –Question to All of Us: If You Can Do It, Why Aren’t You??