Air intake and flying vehicle, in particular a missile, with such air intake

A movable ramp (8) is arranged on the external surface of a planar face (7A) of elongate duct (4). An actuator (10) moves the ramp between retracted and deployed positions in which the ramp is completely set back from an air inlet end (5) of the duct and is protruding from the duct at the air inlet end, respectively. An Independent claim is included for flying device.