Pilots use it to turn the airplane at the low speeds of taxiing. Sidenote: the ashtrays are not there anymore in the newer airplanes; pilots are healthy nowadays because airlines now forbid chainsmoking above 30,000 feet.) Rudder pedals can also be used to keep it straight during taxi, or in shallow turns. read more
While Turning in Air. Airplane turn in air with the help of rudder. This process is known as yawing. Turning the airplane in the air requires rudder, which is located on the tail of the airplane. read more
There are two major systems that are used to turn aircraft on the ground: Steerable nose wheel.The wheel moves like on a car. Differential braking (generally only small aircraft). The nose gear is free castering. The pilot eases up on the brakes on one side or the other. read more