All you need with the Skyview is an antenna. I'm guessing all the newer units (other brands) are the same.
. Nice system although not TSO'd for legal IFR.
Just to be clear, NONE of the gps systems mentioned in this thread are approved for primary navigation under IFR.
The answer is NO, plain and simple.So. If a G3X Touch has an external GPS 20A attached (approved WAAS GPS source) but no GNS or GTX WAAS navigator can the G3X be used for IFR approches?
Jim
Michael - in reality, it doesn't matter if the GPS chipset is in the antenna puck or within the EFIS. No matter how you cut it, there's better than an even chance that anything you install in the panel will be shaded from a clear view of the sky, thus even if it has a fully self-contained GPS it likely will need an external antenna to get the required view of the sky.
Also, since you're in Canada, be aware that you'll need more than a GTN650 or IFD440 in order to be IFR-legal. You'll need to add another NAV source (like an SL30 or similar). The way the Canadian regs are written, you have to be able to get back on the ground after the GTN or IFD fails - we aren't allowed to say "oh, the GPS inside the box failed but I can still use it as an ILS receiver" - we have to have a completely separate alternate source of navigation guidance.
As for using the "built in" GPS equipment in the EFIS as a back-up, well, that's a great idea, and I would add they often provide huge situational awareness benefits as they drive the very powerful moving map features on today's big-screen EFIS systems. I often have the map up on one of my EFIS screens even though the airplane is being driven around the sky based on the information coming from my certified GPS navigator.
Hi Canada Joy,
Yes, I'm aware of the legal requirements and SL30 is part of the planned list for the NAV. My initial question was out of ignorance because I didn't realize the bulk of the big names in EFIS had GPS capabilities on-board. I thought they all needed an external GPS source, such as a GTN or IFD. Having the option to simply add an accessory to the EFIS is purely to provide backup. I will have VOR (plus other redundant capabilities).
Thanks.
Virtually all the EFIS boxes have, or can have, an inexpensive, internal or hidden external, non-TSO’d for IFR, GPS. This is more than window dressing. Some EFIS units use gps data to ‘aid’ the attitude solution. Some EFIS units use gps data as a critical input if pitot data fails. You owe it to yourself to find out how your proposed efis works.