I am in the process of planning to update the avionics in my Super Cub and have a question on whether or not I should install a new radio with NAV capability, along with the associated CDI and NAV antenna, or simply stick to a new COM radio.
I am in the process of planning to update the avionics in my Super Cub and have a question on whether or not I should install a new radio with NAV capability, along with the associated CDI and NAV antenna, or simply stick to a new COM radio.
It’s fine to put one in if you’d feel like you were missing something without one. In your recent flying have you tracked VORs or localizers much, or have you wanted the ability to do it? If yes, then go for it. It’s better to be comfortable with you avionics than to feel like they’re holding you back, even if you don’t use some of the capabilities often.Specifically I was looking to install a GNC-255A (for COM and VOR/Localizer nav). Not a GPS system.
Use the Garmin 'bare wire' (010-11385-03) cable assembly. It has a fused lead or you can cut the fuse off (I always do) and connect it to a circuit breaker. Use the USB charge port for something else.
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The Garmin nav coms seem to all be GPS-based. Putting a VOR in is just creating a waypoint, then using the CDI presentation.
Can you explain that? What models are you referring to?
Web
Nobody has mentioned one big use for this would be for Awos weather at uncontrolled airports but than you would need an audio panel I believe
People, I’m one who flew before there was GPS, and in a lot of country where VOR wasn’t available. And LORAN totally sucked (too far north, and baseline extension, etc).
I cant imagine why anyone in their right mind would even vaguely consider a VOR receiver, UNLESS they are flying IFR, and that’s nit what Cubs are for.
MTV
People, I’m one who flew before there was GPS, and in a lot of country where VOR wasn’t available. And LORAN totally sucked (too far north, and baseline extension, etc).
I cant imagine why anyone in their right mind would even vaguely consider a VOR receiver, UNLESS they are flying IFR, and that’s nit what Cubs are for.
MTV
The Garmin GNC 420 and GNC 420W are the same as the GNC 430 only without VOR/LOC capability. If you want to intercept a given radial, simply execute "DIR To" a given VOR and select a course to or course from, just like the big boys with their FMC's. It is fully IFR capable and you have the added benefit of having a frequency data base so you can easily look up frequencies even FSS, CTAF and AWOS. If you highlight the frequency and press "ENTER" it will put it on the ready pad for selection. If you know how to fully use the features of the Garmin 400 series units you can stow your chart except for emergency use. You also can put check lists on it and it has a nice timer function. It is a real "Swiss Army Knife" in the cockpit if you know how to use all if its features. A while back I lost my nav display while in IFR and shot an RNAV using only the Garmin GNC 420W's internal CDI. VFR or IFR I consider it the bomb.
If you want IFR capability the reality is most airports with a VOR approach have an RNAV approach and if it has an ILS it usually has an RNAV to LPV minimums which rarely differ more than 50' on minimums. So a WAAS enabled GPS with a vertical deviation indicator will get you just about everything you need for IFR.
Can you explain that? What models are you referring to?
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