ROYALTOTO 11 The difference in the gearbox is the addition of an idler gear so those without the idler gear turn in one direction and those with turn in the opposite direction. Two slightly different gearbox designs are required on each aircraft to make two propellers turn in one direction and the other two in the opposite direction depending on their position on the wing. The respective engines are known as baseline and handed, either of which may also be fitted with a propeller brake. The propeller is designed by Ratier-Figeac and has a diameter of 5.33 m (17.5 ft). In 1983, all charter flights operated by SAS and Braathens were forced to move to Gardermoen.|What Everyone Is Saying About Slot Joint And What You Should Do