TM 1-1510-262-10
The TWR-850 Turbulence Weather Radar System and the RTA-85X system have been designed to
exhibit a very high degree of functional integrity. Nevertheless, the pilot must recognize that it is not
practical to provide monitoring for all failure conditions. However unlikely, it is possible that erro-
neous operations could occur without a fault indication. It is therefore the responsibility of the pilot
and/or copilot to detect such an occurrence by continually assessing the reasonableness of the dis-
played information and by monitoring returns from known weather or terrain and crosschecking the
displayed data against other sources of weather information, such as radio broadcasting stations,
other pilots, and visual sights.
Figure 3-12. TWR-850 Weather RADAR Functional Block Diagram
3-33
