Garmin has received an STC from the FAA for its GI 275 electronic flight instrument in the Robinson R22 and R44 helicopters.
The avionics upgrade is a direct replacement for a variety of legacy primary flight instruments in the cockpit, including the primary attitude indicator, course deviation indicator, horizontal situation indicator, or the multi-function display.
The GI 275 takes advantage of the common 3.125-inch flight instrument size, reducing installation time and preserving the existing instrument panel.
When installed as a primary attitude indicator, the avionics upgrades offer potential weight savings and reduced maintenance compared to vacuum-driven attitude indicators.
If installed as a course deviation indicator or horizontal situation indicator, the GI275 will accept a variety of GPS and navigation inputs, allowing up to two GPS sources and two VHF navigation sources.
When helicopter owners replace an older mechanical course deviation indicator or horizontal situation indicator, the GI 275 can double as a digital indicator, adding multi-function capabilities such as a moving map, weather, traffic, obstacles, SafeTaxi and more.
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