What is the safety for a projectile, HE with ET?

• A. He, Frag, Move, C/S, EMR, Static, 1hrwt
• B. He, Frag, Move
• C. He, Frag, Move, VT, EMR
• D. He, Frag, Move, Eject

Answer: (A)

For a HE projectile with an electronic time fuse, the safety envelope must address both the physical and electrical hazards. The fragmentation hazard is inherent when the round detonates, so precautions about surviving fragments and keeping clear of the expected blast area are essential. Moving away from the item reduces exposure to those fragments and the blast. The safing/controls aspect (C/S) ensures the round is handled only when the fuze is in a safe state, preventing inadvertent arming. Electronic time fuzes are sensitive to electromagnetic energy, so electromagnetic radiation (EMR) hazards must be considered to avoid unintended initiation from EMI or nearby electrical equipment. Static electricity is another risk that can trigger the electronic timing circuitry or arming mechanism, so anti-static measures and careful handling are important. A defined waiting period, such as 1 hour, allows residual energy and potential arming currents to dissipate before any movement, disassembly, or further handling. Together, these factors form the comprehensive safety posture for this item. The other options miss one or more of these ET-specific hazards (EMR or Static) or replace ET with incompatible fuze concepts, so they are not as complete.