Which helicopter is primarily used for transport in the RAF?

The Chinook helicopter is primarily used for transport in the RAF due to its unique design and capabilities. It features a twin-rotor system, allowing it to carry heavy loads efficiently and operate in various environments, including rugged and challenging terrain. The Chinook is particularly adept at transporting troops, equipment, and supplies quickly, making it an indispensable asset for logistical operations and support during deployments.

In contrast, while the Apache is an attack helicopter oriented towards military operations, such as strike missions and close air support, it is not primarily designed for transportation. The Merlin helicopter, although it also serves transport roles within the RAF, is typically used for specific missions like search and rescue or tactical troop transport, rather than the bulk transport capabilities of the Chinook. Lastly, the Bell helicopter, which is associated with other roles in aviation, does not serve as a primary transport helicopter within the RAF context. The design and operational focus of the Chinook align perfectly with the RAF's needs for a reliable transport helicopter.