Radio and navigation systems are available from several eras of the King Air’s history, so users can fly without GPS via an original Bendix KNS-80 RNAV system, or with the convenience of a Garmin GTN 750 (PMS50 or TDS). Other swappable radio equipment includes Collins CTL NAV/COM radios, CTL-62 ADF, GNS 530, IND-42 DME, CTL-92 transponder, APS-65 autopilot, and a Bendix RDR1150XL colour weather radar.