TURN AND SLIP INDICATORS OR TURN COORDINATORS
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Turn Indicators are another instruments from family of gyroscopic instruments.
As a unit, with one degree of freedom, which means that a gyroscope is tilted in only one axis, is also the principle of the simplest device.
The drive of this device is realized using air or power supply. And both DC and AC. Recently, when the electronic components continually improve and smaller, with alternating rotors powered electronic converters are starting to use more and more.
This commutator wear out and they dont damage the coals. Devices are cleaner, less noisy, disturb Electrical sparks and are mainly far greater durability. Unfortunately, a bit higher price. It is up to each of the pilots or aircraft owners to get this economy calculated the operation.
Air, or electricity rotor spinning device that is interspersed throughout the rotation axis of the device. Central position of the rotor is maintained by locking spring. Rotor, together with the mechanism of turn, must be very well balanced. Precession in the rotation rate of turn about a vertical axis, the apparent tilt rotor of turn. If the body turns on the device clockwise, vertical axis of the hands will indicate odkoln right, it means the device information indicates the pilot to turn airplane / helicopter transport. (Simple rule ... tread right leg, hand inclined to the right. Tread left leg, hand inclined to the left).
The difference between the turn coordinator and turn and slip indicator you can see on the first sight.
Turn and slip have pointer, which is zero in the upward position. In turning its upper portion deflects to the left, or right.
Turn Coordinator : the place hands symblol aircraft. It then signals the pilot made a turn if accurate angular velocity. Do not confuse the turn coordinator (English Turn Coordinator) with an artificial horizon! The coordinator informs the pilot turns the aircraft lateral tilt.
As shown in the illustrative image in the header of this page, is turn, but turn coordinator, accompanied by lateral inclinometer (popularly ball). This helps the pilot when passing a curve, so as not to slip, or vice versa výkluzová. Again the auxiliary rule: "Where is the ball, there goes the foot." When passing the ball curve deviates from the left, hit the left leg.
As you can see on the picture below, a few producers have the same " idea " how can look their Turn Coordinators.
Left instrument is original 1394T100-7Z from Mid-Continet Instruments and Avionics ... on the right is BZW-4B from China. Original or not ?
Who know.
T.C. from Mid-Cont. have letters on pins A, B and C , but Chinese have pin 1, 2 and 3.
Power is from 12 to 32Vdc.