DJ67 wrote:
greg p wrote:
Jeff, I don't believe this statement is true. I am the designer of the installation kit for the PA28/32 series (Piper, certified) for the Trio AP. Obviously I worked closely with them on this, and in fact I manufacture the kits. The Trio must use a GPS for it's nav source. The design was approved via an STC, and no mention was ever made about using a certified GPS only.
By the way, it performs flawlessly. +/- .01 xte, +/-20 feet altitude.
Hi Greg,
1. I'm wondering if the Trio is approved for IFR, or more specifically a Nav-coupled IFR approach with the GPS?
2. Does the STC have any restrictions on the GPS source at all (e.g. WAAS vs non-WAAS)
DJ, I can't answer #1, as the guys at Trio are constantly making revisions. My suggestion is to call Chuck at Trio Avionics. He will definitely answer any questions you have. Unfortunately they don't have a forum.
#2; certified or not, WAAS or not, as long as the gps has a nmea or airinc output, it will drive the AP. However for IFR operations you must have a certified gps. And the FAA has no restrictions beyond that
I use my 740 to drive the Trio. Very simple connection. (1 wire!)