Heat exchangers in each PACK are how many?

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Multiple Choice

Heat exchangers in each PACK are how many?

Explanation:
Two heat exchangers are used in each PACK. This two-stage arrangement cools the hot bleed air efficiently across different ambient conditions and provides redundancy: if one exchanger isn’t performing optimally, the other can still deliver cooling, though with reduced capacity. The dual setup balances effective cooling with system weight and complexity, avoiding the limitations of a single exchanger while not overdoing the hardware.

Two heat exchangers are used in each PACK. This two-stage arrangement cools the hot bleed air efficiently across different ambient conditions and provides redundancy: if one exchanger isn’t performing optimally, the other can still deliver cooling, though with reduced capacity. The dual setup balances effective cooling with system weight and complexity, avoiding the limitations of a single exchanger while not overdoing the hardware.

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