DESIGNER’S HANDBOOK 4189350049C EN
Page 25 of 206
3.5.1.1 Heading indicator VI003 with rate of turn
In the standard heading indicator VI003 the ROT has 2 fall-back sources, the input selected should be consistent
with the selected gyro.
It can also be set to fixed source or the same NMEA source can be selected for both ROT 1 and ROT 2.
(The auto NMEA setup will normally select same source for both).