How many igniters are used in the TH-73 helicopter?

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The TH-73 helicopter is equipped with two igniters, which serve critical functions during the engine start process. Having two igniters enhances the reliability of the ignition system, ensuring that the engine can start effectively under various conditions. This redundancy is important for safety and operational efficiency, allowing for successful ignition even if one igniter were to fail. The design of using two igniters reflects standard practices in aviation, where added safety measures are crucial. In summary, the utilization of two igniters is a deliberate engineering choice to enhance operational reliability and safety.