TY - BOOK AU - Bendix TI - Maintenance manual Communication and Navigation System RT-221 / Bendix U1 - OF629.135 N2 - Standard Communication Navigation and Air Traffic Control Systems ; The Aviation Radio Spectrum ; Aircraft Communication Systems ; VHF Omnirange ; Navigation Systems ; Instrument Landing Systems ; Automatic Direction Finders , Distance-Measuring Equipment ; Radar Beacon Transponders ; Weather Radar ; Gyroscopes and Servo Systems ; Flight Directors and Flight Simulators ; Autopilots ; Design and Reliability of Solid-State Avionic Systems ; Shop Facilities and Regulations ; Aircraft Installations ER -