 Concorde, for example, used a continuous cruise climb throughout its flights, since there was normally never any other traffic at the same altitude (nearly ) in the same direction.In most modern commercial airliners, computers such as flight management systems (FMS) calculate and/or execute the proper steps in a step climb, in order to maximize the efficiency realized by the technique.Step and cruise climbs are not normally applicable to lower-flying aircraft propelled by conventional piston engines with propellers or turboprops, since their performance characteristics may be very different from those of turbofan or jet engined aircraft.