HUD's Up!


I spent some time this weekend testing a new Heads Up Display product from Grand Rapids Technologies, and I think that folks who have been lusting after a real, functional HUD are going to be wanting one! GRT has taken a very simple, commonly available product intended for automotive use (the Hudly, priced at about $300) and adapted it to the experimental market by providing an Android App that runs on a stick PC ($50) or an Android phone which talks to the GRT EFIS via Bluetooth.  Buy the Hudly, get a stick PC or your Android Phone, buy the App from GRT, and you're essentially there. I haven't talked total App price with  GRT, but this is a HUD capability for just a few hundred bucks. Continue reading "HUD's Up!"

GRT Avionics' New HUD for Experimental Aircraft

Actual view of HUD in flight over Michigan on a sunny summer day. Note the brightness of the screen and the clarity of the combiner glass. Photo: GRT.

A heads up display can now be part your a GRT Avionics equipped airplane for as little as $300. GRT's pursuit of heads up display technology has led to support for the Hudly automotive after-market heads up display. Graphics optimizations in the GRT remote app, combined with the impressive readability and value of the Hudly have resulted in the first practical heads up display for experimental and general aviation (certified) airplanes.

  • Aircraft mounted heads-up display
  • Sunlight-Readable Color Symbology
  • Primary Flight Data
  • Flight Director and HSI Guidance
  • Lateral/Vertical Deviation for Approach
  • Stall warning and all other features of GRT Vision App

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GRT Avionics Announces Instant Upgrade of 6.5-Inch Horizon WS to 7-Inch Horizon EX


GRT Avionics makes it easy to upgrade the 6.5-inch Horizon WS to the high-resolution, 7-inch Horizon EX with synthetic vision, enhanced moving map, and more. A drop-in replacement, the EX fits in the same mounting hole and typically requires no wiring changes. User settings can be copied from an existing WS into the EX with the settings backup function. No avionics experience is required. Continue reading "GRT Avionics Announces Instant Upgrade of 6.5-Inch Horizon WS to 7-Inch Horizon EX"

Seattle Avionics ChartData now available for GRT Horizon HX and HXr.

Now GRT Horizon pilots can have all the information provided on current paper charts and much more, without the hassle of carrying paper or an extra tablet.

Annual subscriptions to Seattle Avionics ChartData for the Horizon HX and HXr are available at Customers can choose a VFR-only package for $99 per year that includes geo-referenced Sectional Charts and airport diagrams, or an IFR package for $199 per year that includes all the VFR charts, plus geo-referenced Instrument Approach Procedures, STARs, DPs, Minimums, and IFR Low- and High-Enroute charts.

HXr Split PFD- Sectional-traffic

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GRT Now Shipping Val Avionics Remote Nav Radio

ComFreq GRT Avionics is now shipping Val Avionics remote nav and com radios to be used with the HXr, GRT’s large-screen electronic flight instrumentation system for experimental and light-sport aircraft. The HXr features a dedicated suite of controls for remotely mounted avionics such as radio, transponder, intercom and audio panel, saving precious instrument panel space in an age dominated by large glass displays.

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GRT Avionics HXr Supplement Available

Bezel webpageGRT Avionics announced the remote interface capability of the HXr electronic flight information system with the Trig TT22 1090ES Mode S transponder and its Class 2 counterpart, the TT21. The Trig units can be remotely mounted and controlled through either one or two HXr display units, creating a clean instrument panel design by eliminating the need for a separate transponder control face.

The TSO-certified Trig TT22 transponder complies with the ADS-B Out “2020” rule when coupled with an appropriate GPS receiver. GRT EFIS systems support a variety of ADS-B receivers, such as the Radenna SkyRadar and NavWorx ADS600 series, to complete the ADS-B package.

The GRT TT21/TT22 Equipment Supplement is now available for information on installing, programming and using the Trig transponder with the HXr system. Aircraft owners may purchase the TT22 directly from GRT Avionics as part of the HXr EFIS system.

For more information, visit, or call 616/245-7700.