Which unit provides pre-flight power and coolant to the seeker head prior to launch?

• A. Seeker Head Coolant Unit
• B. Ground Power Unit
• C. Battery Coolant Unit
• D. Flight Control Processor

Answer: (D)

The unit that handles preflight power and cooling for the seeker head is the Seeker Head Coolant Unit. This unit is designed to supply both electrical power and the cooling fluid to the infrared seeker head before launch, ensuring the sensor is powered for preflight checks and kept within its operating temperature range for accurate calibration and testing. The Flight Control Processor is the guidance computer and does not provide power or cooling to the seeker head. The Ground Power Unit can provide general power to the system, but it isn’t responsible for the dedicated cooling loop to the seeker head. The Battery Coolant Unit isn’t the standard source for this preflight requirement.