PPL » Aircraft Tech Knowledge (A) » Gyroscopic Instruments

12.40.2

Outline the basic principle of operation of the vacuum system.

12.40.4

State the likely effects of reduced or nil suction in the vacuum system .

12.40.6

Describe the gyroscopic properties of:

(a) rigidity;

(b) precession.

12.40.8

With respect to the turn indicator/coordinator:

(a) explain the basic principle of a rate gyroscope;

(b) differentiate between the different indications of the turn indicator and turn coordinator;

(c) state the function, indication and correct use of the coordination (balance) ball.

12.40.10

With respect to the attitude indicator (or artificial horizon) explain:

(a) the basic principle of operation (earth gyroscope);

(b) how pitch attitude and bank angle are displayed;

(c) the pilot checks for serviceability.

12.40.12

With respect to the heading indicator (or DGI), explain the:

(a) advantages of a gyroscopic heading indicator (versus a compass);

(b) need for, and method of synchronising the HI with the compass;

(c) pilot checks for serviceability.

12.40.14

Briefly explain the errors likely to occur if:

(a) the gyro rotor rpm is low;

(b) there is an indication of a power failure on an electrically-driven gyro.

12.40.16

Describe the indications of toppling.