What is the primary function of the flare cartridge in the payload module?

The primary function of the flare cartridge in the payload module is to ignite upon exposure to oxygen. This ignition mechanism is crucial for initiating the payload deployment or the operational capabilities of the system, particularly in scenarios where a reliable ignition source is needed. The flare cartridge’s design ensures that it responds predictably to oxygen, which is essential for triggering subsequent actions or systems in the payload module.

In contrast to other functions, such as holding components securely or guiding installation, the flare cartridge's role is specifically linked to its ability to produce a flame or reaction when oxygen is present, which is fundamental to its purpose within the larger operational framework of the payload module. This ignition capability is key for ensuring that the payload functions as intended during mission-critical operations.