FSS 727 CIVA HSI

This add-on enables the FSS 727's HSI to interface with the CIVA INS, displaying crosstrack and track angle error information on the instruments. When the NAV/GPS switch is set to GPS and CIVA INS is selected, the CDI needle shows crosstrack distance while the compass card indicates track angle error. One dot on the CDI represents 3.75 nautical miles of deviation. Heading reference on the HSI is replaced by CIVA navigation data during use.