SID/STAR for IFR flights in Charts, Navigation and Flightplanning Help Posted September 11, 2020 "Cleared for the visual" means that you are supposed to fly a visual approach. You are allowed to use whatever navigation aids you want to achieve this, however, you must play by the rules of that visual approach, which means, in general, that you must maintain visual runway contact at all times - you can use an ILS beam to align yourself with the runway, but you may not trust the ILS beam as your primary reference, and upon losing visual contact, you must go around. If you use RNAV waypoint to align yourself with the runway, the same rule holds: you must not use the FMS as your primary navigation reference, you must go around the moment you lose visual contact, and you must make sure that the FMS doesn't fly a path that a pilot hand-flying based on visual cues alone wouldn't fly. On top of that, many visual approaches come with additional restrictions that you are required to obey, and ILS and other navigation aids may conflict with that. Take for example this approach into LOWI: https://charts.vacc-austria.org/LOWI/LOWI_Approach_Visual Approach_28032019.pdf - there is a localizer available (OEV), but it is offset from the runway threshold, and only intended for the intial portion of an ILS approach; which means that it is practically useless for a visual approach. You can use the localizer to supplement visual cues, but ultimately, the landing must be made visually. There are also cases where the visual approach, or the visual portion of an RNAV/RNP approach, is substantially different from the ILS approach, and being cleared for the visual does not authorize you to fly the different path that the ILS would have given you. For example, look at LFMN. You might be cleared for the ILS approach for runway 04R, which looks like this: https://www.sia.aviation-civile.gouv.fr/dvd/eAIP_10_SEP_2020/FRANCE/AIRAC-2020-09-10/html/eAIP/Cartes/LFMN/AD 2 LFMN IAC RWY04R -ILS LOC.pdf - essentially, a 21-mile DME arc, and then you turn directly onto the localizer course, intercepting whenever it gets into range. But if, instead, you are cleared for the RNP A approach (https://www.sia.aviation-civile.gouv.fr/dvd/eAIP_10_SEP_2020/FRANCE/AIRAC-2020-09-10/html/eAIP/Cartes/LFMN/AD 2 LFMN IAC RWY04 FNA RNP A.pdf), then there is absolutely no way you can use the ILS beam in any meaningful way, because you will be intercepting the extended runway centerline one mile before touchdown, way too short to get established, and trying to fly this approach based on instruments will get you in trouble fast - flying the RNAV waypoints down to the MAPT, and then continuing visually, really is your own choice here. Likewise, some airports have visual approaches with a prescribed flight path, and of course you are not authorized to deviate from that path.