Which feature is NOT associated with the CH-53 E Sea Stallion/Super Stallion?

The CH-53E Sea Stallion, also known as the Super Stallion, is primarily a heavy-lift helicopter designed to transport troops, supplies, and equipment. Among its features, it does indeed have in-flight refueling capabilities, allowing for extended range and operational flexibility. The helicopter can carry significant loads, with a maximum capacity of around 26,000 pounds, which makes it suitable for a variety of missions, including heavy lifting of military equipment.

Additionally, the CH-53E can be equipped with window-mounted .50 caliber machine guns for defensive purposes, enhancing its capability to defend against potential threats while in flight.

However, advanced anti-aircraft systems are not a standard feature of the CH-53E. While the helicopter may operate in environments where air defense is necessary, it does not carry sophisticated anti-aircraft systems built into its design. Its primary function does not include engaging enemy aircraft, which is why this characteristic is not associated with the CH-53E.