![]() Look at the runway and put yourself on it. Visual - pretty much what it says on the tin. Like LPV, the signals form a cone to the runway threshold for precision approach guidance. ILS - Instrument Landing System - the combination of a runway localizer (LOC) and glideslope (GS) that is broadcast over VOR frequencies. As you get closer to the runway threshold, the precision increases as you fly down the cone of the approach. LPV - Localizer Performance with Vertical guidance - this is a GPS approach with nearly identical performance to that of an ILS. Does not imply LNAV as well, and often you’ll see LNAV/VNAV together. VNAV - Vertical Navigation - the altitude component of an RNAV approach that allows for GPS altitude control, similar to an ILS but much less precise. LNAV - Lateral Navigation - the lateral, 2 dimensional navigation that specifies points in latitude and longitude. It is used in the approach plates to indicate a working GPS is required. Enables you to plug in any waypoint anywhere and fly directly to it. RNAV - Random Navigation - essentially just implies GPS navigation. It’s been a while, so I’m not 100% on all this: Seems like they both would use GPS to go from point to point.? Obviously VNAV is for up / down.īefore I ask anything else, am I correct on all of this? If this is all correct (again, keeping to basic terms) then I don’t understand the difference with LNAV and RNAV. This is 100% manual flight all the way down. ![]() So, it would be common to fly most of the flight plan (assuming an IFR flight) in GPS / RNAV and them once in the approach legs, the pilot would disengage AP and hand fly the plane to the runway, calling out each leg of that part. Now, lastly… a Visual Approach is none of the above and would “start” at the IAF. So basically it takes care of the RATE of descent automatically and trys to ensure that you hit the target ALT for each point for a more “stepped” controlled approach. ![]() It will automatically fly the lower ALT assigned, based on each incoming waypoint. BUT, VNAV can offer a similar result to ILS, what I will call “automated manual” vertical guidance. This (again) is just GPS going to point to point. RNAV (by itself) offers none of this at all. The main difference between an ILS approach / landing and an “RNAV” approach / landing… is that ILS of course uses local frequency to “talk” to the plane to offer vertical guidance down. Some planes have this mode and some do not, just as in the real world. VNAV, is where the AP system will “look” at the FMS way points / legs and will attempt to control ALT based on the flight level assigned to them. “RNAV” is basically just another name for GPS. Really the same thing as “NAV” autopilot mode in the plane. I would prefer another simmer to chime in and help.Īs I understand… RNAV is just GPS mode in the FMS flying to different points. So, first I have tried to google this and watch videos… and frankly they make me more confused. Now, (especially with the new MSFS) I am wanting to venture out and “site see” more and most of the smaller places I want to see and experience don’t have an ILS approach. Plane does the rest and around 1K - 500ft ill disengage and hand land it. I generally activate “approach mode” when I have turned on final and have the speed and flaps all set for touch down. I would never understand (if available) why a pilot would never want to use an ILS approach and have as much of the decent / approach automated as possible. Frankly, I would imagine in the real world this would be the preferred method of landing for any pilot. For now, I feel like I understand the ILS landing approach / system pretty well. With the sim, I generally tackle one thing at a time and try to move on. I just quickly wanted to check my basic understanding on a few things. ![]() I have always wanted to be a pilot, but it’s just not practical in real life for me at this time. Yes, its not perfect and I know they still need to do some updates… but wow! Really love this sim so far Hi everyone! I hope all of you are enjoying the new MSFS! Coming from X-Plane 11 I am so impressed with all of this. ![]()
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