Which jettison mode can receive circuit power from the aircraft's battery bus if needed?

• A. Normal
• B. Standby
• C. Emergency
• D. Manual

Answer: (C)

The system is designed to keep the jettison function operable under different electrical conditions. The battery bus provides a last-resort power source when the main electrical generators or essential buses aren’t available. In the emergency mode, the jettison circuit is wired to draw power from the aircraft’s battery bus if needed, ensuring the release mechanism can still actuate even if the primary power path has failed. This guarantees you can jettison stores in a degraded electrical scenario.

Normal mode relies on the regular power distribution from the aircraft’s generators and bus structure, so it isn’t focused on battery power. Standby mode supplies limited power to critical systems during abnormal conditions, but not the full battery-backed jettison circuit. Manual mode involves operator-initiated action and typically does not automatically guarantee battery-backed power for the jettison system.