Is heading information required for TAWS installations?
Heading information is required to be interfaced to Terrain Awareness Systems (TAWS) only if the TAWS installation include a terrain display. Generally, compatible interfaces include analog XYZ synchro found in modern HSI/Compass systems or digital ARINC data found in modern AHRS systems. In particular, this detail is true for Honeywell and L3/Goodrich TAWS products.