Search results
Results from the WOW.Com Content Network
An aircraft is streamlined from nose to tail to reduce drag making it advantageous to keep the sideslip angle near zero, though an aircraft may be deliberately "sideslipped" to increase drag and descent rate during landing, to keep aircraft heading same as runway heading during cross-wind landings and during flight with asymmetric power. [1]
Aircraft sideslip angle. A slip is an aerodynamic state where an aircraft is moving somewhat sideways as well as forward relative to the oncoming airflow or relative wind.In other words, for a conventional aircraft, the nose will be pointing in the opposite direction to the bank of the wing(s).
Technically, it measures sideslip angle, not yaw angle, [2] but this indicates how the aircraft must be yawed to return the sideslip angle to zero. It is typically constructed from a short piece or tuft of yarn placed in the free air stream where it is visible to the pilot. [3] In closed-cockpit aircraft, it is usually taped to the aircraft canopy.
Dihedral effect [1] of an aircraft is a rolling moment resulting from the vehicle having a non-zero angle of sideslip. Increasing the dihedral angle of an aircraft increases the dihedral effect on it. However, many other aircraft parameters also have a strong influence on dihedral effect.
In aviation, coordinated flight of an aircraft is flight without sideslip. [1] When an aircraft is flying with zero sideslip a turn and bank indicator installed on the aircraft's instrument panel usually shows the ball in the center of the spirit level. The occupants perceive no lateral acceleration of the aircraft and their weight to be acting ...
A sideslip angle will arise if an aircraft yaws about its centre of gravity and if the aircraft sideslips bodily, i.e. the centre of gravity moves sideways. [2] These angles are important because they are the principal source of changes in the aerodynamic forces and moments applied to the aircraft.
Most aircraft trimmed for straight-and-level flight, if flown stick-fixed, will eventually develop a tightening spiral-dive. [2] If a spiral dive is entered unintentionally, the result can be fatal. A spiral dive is not a spin; it starts, not with a stall or from torque, but with a random perturbation, increasing roll and airspeed.
The bank angle for zero sideslip is used for sizing the vertical tail and also during flight-testing to determine V MCA in-flight. The vertical tail or vertical stabilizer of a multi-engine aircraft plays a crucial role in maintaining directional control while an engine fails or is inoperative. The larger the tail, the more capable it will be ...