Which type of rotary wing aircraft typically performs pilot training and skills development?

The type of rotary wing aircraft that typically performs pilot training and skills development is the trainer. Trainer aircraft are specifically designed with the goal of educating new pilots, providing them with the necessary flight experience and skills needed to operate helicopters effectively. These aircraft often feature dual controls, allowing an instructor and student to fly together, thereby facilitating hands-on learning and direct feedback during flight maneuvers.

Unlike cargo and utility helicopters, which have specific roles in transporting goods and personnel, trainer aircraft prioritize the instructional aspect of flight. Rescue helicopters focus on search and rescue operations and are equipped for emergency responsiveness, which is a different operational focus than that of training new pilots. As such, while these other types serve vital functions within the aviation community, they are not primarily designed for training purposes like the trainer aircraft are.