What lighting configuration is required for altimeters during Night Jump Operations?

• A. A single integrated light
• B. An integrated light or an additional light
• C. A backup light source only
• D. No specific configuration is needed

Answer: (B)

During Night Jump Operations, it is essential for altimeters to be equipped with effective lighting to ensure they remain visible and legible to jumpers during low-light conditions. The correct requirement specifies that either an integrated light or an additional light source must be present for the altimeter.

Having an integrated light allows for convenience and minimizes the number of separate components needed on the equipment. The alternative option of having an additional light serves as a backup to ensure that even if the primary light fails, the jumper can still effectively read the altimeter. This redundancy is vital during night jumps, where visibility is significantly reduced, and reliance on proper altitude information is critical for a safe and successful jump.

The other options do not sufficiently address the need for visibility during operations in the dark. A single integrated light could imply no backup, and relying solely on a backup light source overlooks the importance of ensuring the altimeter is consistently visible throughout the jump. Therefore, the requirement for either an integrated light or an additional light ensures that jumpers can maintain situational awareness regarding their altitude, which is crucial for safety during night operations.