Which helicopter has a maximum speed of 258 km/h?

The Griffin helicopter, known for its versatility and performance, has a maximum speed of 258 km/h. This notable speed is a result of its design, which incorporates advanced aerodynamics and powerful engines that allow it to operate effectively in various mission profiles. Its ability to reach this velocity makes it suitable for a range of operations, from search and rescue to troop transport.

The other helicopters mentioned in the choices each have different maximum speeds that do not match the 258 km/h benchmark. For example, the Chinook is designed primarily for heavy lifting and troop transport, which affects its speed capabilities, while the Squirrel and Puma are also optimized for different roles and environments, resulting in maximum speeds lower than that of the Griffin.