The occupants perceive no lateral acceleration of the aircraft and their weight to be acting straight downward into their seats.Glider pilots attach a piece of coloured string to the outside of the canopy to sense the sideslip angle and assist in maintaining coordinated flight.An airplane has three axes of rotation: Coordinated flight requires the pilot to use pitch, roll and yaw control simultaneously.[3] If the pilot were to fail to use the elevator to increase the angle of attack throughout the turn, the airplane would also tend to "slip" toward the lower wing.[1] However, if the pilot makes appropriate use of the rudder, ailerons and elevator to enter and leave the turn such that sideslip and lateral acceleration are zero the airplane will be in coordinated flight.
Pilot's view of a
Schempp-Hirth Janus
-C
glider
. The
yaw string
(red wool) on the canopy and the
turn and bank indicator
(top center of the instrument panel) both show the glider is not in coordinated flight. The glider is slipping slightly nose-left.
Coordinated flight
can be restored by the pilot applying pressure to the right rudder pedal.
The
Türk Yıldızları
performing a coordinated turn. In team
aerobatics
the notion is especially important, as sideslip may likely result in an in-flight collision.
