Which attack helicopter operates effectively in day, night, and limited visibility?

The AH-1W Cobra is specifically designed as an attack helicopter that excels in various operational environments, including day, night, and limited visibility conditions. Its advanced avionics and sensor capabilities, including night vision systems and infrared targeting sensors, allow it to engage targets effectively regardless of the time of day or weather conditions. This versatility is critical for modern combat operations where conditions can vary rapidly and unpredictably.

In contrast, the MV-22B Osprey is a tiltrotor aircraft designed for troop transport and logistical support rather than focused attack missions. The CH-53E Super Sea Stallion is primarily a heavy-lift helicopter intended for transport rather than direct attack operations. The AV-8B Harrier II, while capable of vertical takeoff and landing and operating in diverse environments, is fundamentally a ground attack aircraft and not specifically an attack helicopter like the Cobra. Therefore, the Cobra's tailored capabilities for precision targeting and engagement in varied visibility makes it the correct choice for this question.