The FAA turned a regulatory corner last year when it gave the green light to replace spinning attitude gyros (and vacuum systems) with TSO’d standalone solid-state electronic attitude instruments. It wasn’t long before Dynon—partnering with the Experimental Aircraft Association (EAA)—announced an AML-STC to retrofit its experimental D10A EFIS into lower-end Part 23 aircraft. As expected, Garmin competitively and swiftly earned a more extensive AML-STC for its experimental G5 EFIS just a few months later.
The D10A and G5 have similar form, function and pricing, which confuses the buying decision. They both sport decent color displays that mimic primary flight displays (PFDs) and they’re designed for an easy retrofit. Plus, they are both priced under $3000. In this article, we put the two instruments side-by-side for a look at their differences and limitations.