When is the 10-minute window established before drop time?

The correct choice indicates that the 10-minute window is established 12 minutes prior to drop time. This timeframe is crucial for jumpmasters and aircrew to ensure proper coordination and execution of jump operations. The 12-minute mark allows time for final preparations, such as equipment checks, briefings, and ensuring all personnel are ready to exit the aircraft safely.

Establishing this window helps maintain situational awareness and allows for any last-minute adjustments based on variables such as weather conditions, aircraft speed, and landing zone readiness. Adhering to this timeline is essential for smooth operations and the safety of all personnel involved in the drop.