What characterizes a helipad?

A helipad is specifically designed for the operation of helicopters. The defining characteristic of a helipad is that it provides an area, typically with a prepared surface, dedicated purely to the takeoff, landing, and parking of helicopters. This specificity is crucial because helicopters have unique operational needs compared to fixed-wing aircraft. Unlike runways or larger airport facilities that accommodate a variety of aircraft types, helipads are tailored to the size and requirements of rotorcraft.

The focus on a prepared surface is important as it ensures safety and stability during helicopter operations, which can be affected by terrain and surface condition more than other aircraft types. Therefore, option B accurately describes the function and characteristics of a helipad as it highlights its exclusive use for helicopters, setting it apart from other areas designed for different types of aircraft or larger aviation facilities.