36  EN R OUTE  TERMINAL  FINAL APPR O A CH  2.0 NM 2.0 NM 1.0 NM 1.0 NM 0.3 NM 0.3 NM 36  18  APPROACH  TERMINAL  ENROUTE  DEPARTURE  RNP 1.0 RNP 2.0 RNP 1.0 RNP 0.3 Figure 9-41 .  Required navigation performance. FMS also has the capability of controlling (selecting) VOR,  DME, and LOC NAVAIDs, and then receiving navigational  data from them. INS, LORAN, and GPS navigational data  may also be accepted by the FMS computer. The FMS may  act as the input/output device for the onboard navigation  systems, so that it becomes the “go-between” for the crew  and the navigation systems. 9-45