Which types of helicopters are commonly used for air evacuations?

The correct answer is that medivac helicopters, utility helicopters, and specialized air ambulances are commonly utilized for air evacuations. These types of helicopters are specifically designed to provide medical support and transport patients in emergencies. Medivac helicopters are equipped with medical equipment and personnel to handle critical cases during transit, making them essential for rapid and effective patient care. Utility helicopters are versatile and can be adapted for various missions, including search and rescue operations, while specialized air ambulances are created with the primary focus on patient transport, offering features that enhance comfort and medical support during flights.

In contrast, commercial airliners and cargo planes are primarily designed for transporting passengers and freight over longer distances and are not equipped for emergency medical situations. Private jets and gliders also do not meet the specific needs for medical evacuations, as they lack the necessary equipment and trained medical personnel. Similarly, rescue boats and drones are not suitable for air evacuation purposes, as they operate in different environments (water and air, respectively) and are not equipped to provide medical assistance in flight.