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
Defence Helicopter Flying School devices (provided by CAE Inc.) and two virtual reality trainers and a mock Chinook cabin. All aircrew instruction is carried out by Central Flying School (Helicopters) (CFS(H)) Instructors. These Instructors are a mix of military and civilian personnel personnel. The DHFS uses grass airfields at Ternhill and Chetwynd for helicopter training, both are located in Shropshire. Defence Helicopter Flying School The Defence Helicopter Flying School is a military flying school based at RAF Shawbury in Shropshire, England. The school is a tri-service organisation and trains helicopter aircrews for all three British armed forces, using the Airbus Juno HT1 and Airbus