Helicopter deck the submarine, but brushes the officer charged with trying to hook him who receives a minor injury. Coaxial rotor helicopters in flight are highly resistant to side-winds, which makes them suitable for shipboard use, even without a rope-pulley landing system. Marine and offshore helicopter decks on board offshore oil platforms and ships are typically regulated by the rules defined within CAP 437, which defines standards for the design, marking, and lighting of marine/offshore helicopter decks, and is produced by the Civil Aviation Authority. The largest marine heli decks will accommodate the Boeing CH-47 Chinook, which requires a D value of
Boeing Chinook (UK variants) due to its remarkable service record. It has seen action in every major operation involving the RAF in the helicopter's 25-year service life, including the Falkland Islands, Lebanon, Germany, Northern Ireland, Iraq, and Afghanistan. During the Falklands War, Chinooks were deployed by both the British and Argentinian forces. In April 1982, five Chinooks were loaded aboard the container ship MV "Atlantic Conveyor" bound for the Falkland Islands, to support the British operations. On 25 May 1982, the Chinook "Bravo November" was sent to pick up freight from HMS "Glasgow". While the helicopter was airborne, the "Atlantic Conveyor" was attacked by