Which aircraft supports submarine operations?

The SH-60B/F Seahawk is specifically designed for anti-submarine warfare and supports various submarine operations. Its capabilities include dipping sonar and torpedo delivery systems, which allow it to detect and engage submarines. These helicopters can operate from both ships and land, enabling them to provide flexible support to naval operations. The SH-60B variant is particularly focused on surface and anti-submarine warfare, while the SH-60F is optimized for multi-mission roles, including search and rescue, cargo transport, and maritime patrol, but retains anti-submarine capabilities.

In contrast, the TH-57 is primarily a training helicopter and does not possess the operational capabilities needed for anti-submarine warfare. The T-39D/N/G is a jet trainer aircraft not designed for submarine operations. Similarly, the U-6A, a utility aircraft, serves different roles related to transport and reconnaissance rather than supporting submarine missions. Therefore, the SH-60B/F stands out as the correct answer due to its specialized design and equipment tailored for supporting submarine operations in the Navy.