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Garmin GRA-55

Radar Altimeter

Install Only
Garmin - New - 010-00946-05
From: $6,149.00

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Antenna not included in price.

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This comprehensive radar altimeter solution expands upon Garmin's high-performance, all digital GRA 5500 radar altimeter to include the GRA 55, a best-in-class and cost-effective radar altimeter designed specifically for helicopters and general aviation aircraft.  The GRA 55 leverages Garmin’s patent-pending digital signal processing technology that works to provide smooth altitude tracking and results in a consistent and highly accurate above ground level indication, even inthe most challenging environments such as rough terrain, tree canopies, sand and choppy water.

The solution also offers an optional GI 205 stand-alone indicator, designed to pair with the GRA 55 or GRA 5500, which provides a comprehensive, stand-alone radar altimeter solution. These two new products meet the latest design standards and ultimately provide pilots with rock-solid confidence of their altitude above ground. In addition to helping owners and operators meet recent FAA requirements for radar altimeter equipage in commercial helicopter operations, the GRA 55 meets the most rigorous altitude accuracy requirements, only previously seen in products for transport and military aircraft. And together, the GRA 55 and GI 205 help fulfill recent FAA requirements for radar altimeter equipage in commercial helicopter operations.

Patent-pending technology in the GRA 55 incorporates built-in self-test monitors that continuously cross check the data and system integrity, assuring the pilot of an accurate measurement of the height above ground, even over challenging ground conditions. This technology also provides for a simpler installation, with easy calibration, and eliminates the requirement for long antenna cables that are traditionally required for the installation of radar altimeters.

For Part 135 helicopter operators, the GRA 55 fulfills the radar altimeter equipage requirement recently established by the FAA, and the GRA 55 paired with the GI 205 provides the best-in-class solution to meet these new requirements. Coupled with the GI 205 stand-alone indicator, operators can incorporate a complete, cost-effective radar altimeter solution into their flight decks without the need to purchase an entire flight display system.

  • GRA 55*
  • Mounting rack
  • Connector kit
  • Config module
  • USB cable
*When purchased for display with a G600, G500, or G500H, the required third-party radar ARINC 429 enablement, normally $2,395, is provided at no additional charge (010-00769-64 single display install or 010-00769-65 dual display install).  Please advise at the time of order.  Separate installation approval required.

NOTE: Antenna is NOT included.

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