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ELECTROMAGNETIC & SENSOR SYSTEMS DEPARTMENT Basic Hazards of Electromagnetic Radiation to Ordnance (HERO) Distribution Statement D: Distribution authorized.

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Presentation on theme: "ELECTROMAGNETIC & SENSOR SYSTEMS DEPARTMENT Basic Hazards of Electromagnetic Radiation to Ordnance (HERO) Distribution Statement D: Distribution authorized."— Presentation transcript:

1 ELECTROMAGNETIC & SENSOR SYSTEMS DEPARTMENT Basic Hazards of Electromagnetic Radiation to Ordnance (HERO) Distribution Statement D: Distribution authorized to DoD and DoD contractors only. Point of Contact: Richard Magrogan HERO Program Manager, E3 Assessment and Evaluation Branch (Q52) (540) Approved by NSWCDD Q52 Branch Head William T. Lenzi (Working Papers)

2 Distribution Statement D: Distribution authorized to DoD and DoD contractors only. Hazards of Electromagnetic Radiation to Ordnance – Potential for ordnance containing electrically initiated devices to be adversely affected by electromagnetic radiation HERO 2

3 Distribution Statement D: Distribution authorized to DoD and DoD contractors only. CAUSE ELECTROMAGNETIC EMISSIONS EFFECT ROCKET MOTOR IGNITOR/ DUD DETONATOR INADVERTENT ACTUATION OF ELECTRICALLY INITIATED DEVICES (EIDs) HERO Risk 3

4 Distribution Statement D: Distribution authorized to DoD and DoD contractors only. Electroexplosive Device (EED) Missile Examples:  Detonators  Motor Igniters  Battery Squibs  Piston Actuators  Explosive Bolts Insulation Main Charge Connector Primary Charge Leads Case Bridgewire Booster Charge Closure Disc EED 4

5 Distribution Statement D: Distribution authorized to DoD and DoD contractors only. HERO 5

6 Distribution Statement D: Distribution authorized to DoD and DoD contractors only. Stockpile-to-Safe-Separation Sequence (S4) Army S4 Navy S4 6

7 Distribution Statement D: Distribution authorized to DoD and DoD contractors only. HERO Ordnance Classifications  HERO SAFE ORDNANCE - Ordnance that has been analyzed/tested and is essentially immune to the effects of radio frequency (RF) energy  HERO SUSCEPTIBLE ORDNANCE - Ordnance that has been analyzed/tested and is moderately affected by RF energy  HERO UNSAFE/UNRELIABLE ORDNANCE - – Ordnance that has not been evaluated for HERO – Any ordnance whose internal wiring is inadvertently exposed to the external EME, e.g.: Tests or programming operations are being performed where additional electrical connections are made to the item During assembly/disassembly or when the item is in a disassembled condition and not in an all metal container or other wise shielded 7

8 Distribution Statement D: Distribution authorized to DoD and DoD contractors only. HERO Prevention  Power Management – Reduce transmitter power to a particular antenna – Silence or power down transmitters completely  Frequency Management – Use specific frequencies which will not affect the ordnance item  Observe Safe Separation Distances – Safe separation distances for all transmitters are listed in the HERO emission control (EMCON) instruction/bill. – Distances are provided for HERO SUSCEPTIBLE and UNSAFE ORDNANCE  Shield Ordnance from EMEs (Containerization) – Barrier bags or sealed all metal containers  Limit use of HERO UNSAFE or SUSCEPTIBLE ORDNANCE items when possible This HERO Guidance is provided in the facility HERO EMCON Instruction 8

9 Distribution Statement D: Distribution authorized to DoD and DoD contractors only. Ordnance Accident – Multiple Radios Restrictions below apply when using 3 or more VHF ( MHz) or UHF ( MHz) Police, Fire, or Weapons Department radios  Vehicle Radios – Maintain a minimum safe separation distance of 150 feet from accident – Refer to facility HERO EMCON instruction for safe separation distances for a single radio  Handheld Radios – Maintain a minimum safe separation distance of 50 feet from accident – If the safe separation distance listed in the facility HERO EMCON instruction for a single radio is greater than 50 feet then that distance should be used 9

10 Distribution Statement D: Distribution authorized to DoD and DoD contractors only. HERO Points of Contact Naval Surface Warfare Center Dahlgren Division (NSWCDD) Q52 HERO Program Manager Rick Magrogan (NSWCDD Q52) Phone: Alternate POCs Steven Springer (NSWCDD Q52) Phone: Or Robert Bozarth (NSWCDD Q52) Phone:


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