Garmin® Introduces New Avionics for Experimental Aircraft

Written by thomas · Filed Under Aeronautics News 

March 25, 2013


Announces Lower G3X™ System Price, Plus New Autopilot, AOA Options
OLATHE, Kan./March 25, 2013/Business Wire — Garmin International Inc., a unit of Garmin Ltd.
(NASDAQ: GRMN), the global leader in satellite navigation, today announced seven new, affordable
products for experimental and light sport aircraft that offer enhanced capabilities, reduced weight
and simplified installation. Garmin’s new lower cost and lighter weight Air Data Attitude Heading
Reference System (ADAHRS) and new Engine Indication System (EIS) interface module enable a
significant reduction in the G3X price, with highly capable systems starting at $4,3751. In addition,
Garmin has introduced new product options that bring enhanced capability to the G3X system
including a fully integrated Garmin autopilot, an angle of attack probe and a remote mount ADS-B
“These new products are designed by our dedicated experimental engineering team, many of whom
are pilots and homebuilders, and they have created the kind of smart, cost-friendly avionics that
they want to have in their own aircraft,” said Carl Wolf, Garmin’s vice president of aviation sales
and marketing. “With these product enhancements and new system options, we’re bringing
unprecedented technology and capability to the amateur-built and light sport aircraft market at a
remarkably affordable price, continuing our commitment to help enhance situational awareness.”
Garmin Introduces G3X Integrated Autopilot
Garmin’s new integrated autopilot draws on Garmin’s top-end flight control technology to offer the
most sophisticated capabilities available in this class of autopilot including flight director cues,
coupled approaches, coupled VNAV, automatic trim and more.
The GSA 28 “smart” autopilot servo is a brand new design developed specifically for the
experimental market. Weighing only 1.4 pounds, it is over 40 percent lighter than most
experimental autopilot servos. A gear train with engagement clutch and ability to back drive the
brushless DC motor provide multiple levels of protection without the need to use a shear pin. The
engagement clutch also decouples the motor from the flight controls, which minimizes the friction
the pilot will feel when the autopilot is off. Each servo also provides a built-in interface to drive a
customer-supplied trim servo. When the autopilot is off, the servo provides speed scheduling for the
manual trim commands. When the autopilot is on, the servo automatically trims the aircraft to
constantly keep it in trim. Plus, servo software updates are done over the CAN bus using the G3X
SD card, eliminating the need to send the servo back to the manufacturer for updates.
With the optional GMC 305 autopilot control panel, pilots gain a dedicated autopilot user interface,
as well as additional autopilot functionality including airspeed hold, independent flight director, and
optional yaw damper. A control wheel integrated into the GMC 305 makes for easier pitch, vertical
speed and airspeed adjustments. Plus, for added safety, the panel’s advanced Level (LVL) mode
button commands the autopilot to help restore the aircraft to straight and level flight. And because
the servos interface directly with the ADAHRS, the GMC 305 control panel allows for standalone
operation of the autopilot in the unlikely event of a display loss.
A two-axis Garmin autopilot option for G3X is expected to be available in May for $1,5002
(installation kit sold separately). The optional GMC 305 control panel can be added for $7502.
Lighter, Lower-Cost ADAHRS, Optional Angle-of-Attack
Garmin has also introduced a new lower-cost and smaller ADAHRS unit. The GSU 25 ADAHRS
provides highly accurate and reliable referencing of the aircraft position, rate, vector and
acceleration data, while providing the flexibility to be mounted in any of 16 different vertical or
horizontal positions. For enhanced system redundancy, G3X customers now have the option to
install multiple ADAHRS units, or add one to their existing G3X installation.
The ADAHRS unit also supports new G3X features like optional Angle of Attack (AOA). The AOA
system provides accurate, real-time measurement of wing performance to provide stall margin
indication to the pilot both audibly and visually. The GAP 26 pitot/AOA probe is available in three
versions: unheated, pilot-controllable heated or fully-regulated heated for protection against inflight
The GSU 25 ADAHRS is expected to be available in April for $7992. The optional AOA probe is
expected to be available in April and can be added for $1992 (unheated) or $2992 (heated). The
fully-regulated heated version is expected to be available in July for $4492.
Dedicated EIS Interface Module Brings Increased Installation Flexibility
With Garmin’s introduction of the new GEA 24 stand-alone EIS interface module, homebuilders now
have greater flexibility in the installation location, and the new design incorporates standard-density
connecters for easier wiring. The GEA 24 enables aircraft-specific tailoring of instrumentation inputs
for display of engine gauges, color bands, alerts, fuel, flaps, trim and other vital sensor data on the
G3X. The GEA 24 interfaces with most popular engine models including the Rotax 912iS, and sensor
kits (sold separately) are available for most popular engine configurations. The GEA 24 is expected
to be available in April for $5992.
Remote ADS-B Receiver Delivers Subscription-Free Weather, Datalink Traffic
As the leader in ADS-B solutions, Garmin has also introduced the GDL 39R remote mount ADS-B
receiver for fixed installation in light sport and experimental aircraft. The GDL 39R combines a duallink
ADS-B receiver and a GPS receiver into a single product that streams ADS-B traffic and
subscription-free weather information to the G3X displays, select Garmin portables and mobile
devices like the iPad. The GDL 39R is expected to be available in June for $799Error! Bookmark
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Interface Support for IFR Operation, Advanced Navigation
For IFR operation and advanced navigation capabilities, aircraft owners can use the new GAD 29
ARINC 429 adapter to interface up to two GTN or GNS navigators and/or a GTS 800 active traffic
system to the G3X. The GAD 29 is expected to be available in July for $4252.
The G3X system is modular and expandable, allowing existing G3X owners to bring new capabilities
to their system by adding new features such as multiple ADAHRS, AOA, a GMC 305 autopilot control
panel, or a complete Garmin integrated autopilot with GSA 28 auto-trim capable servos.
Additional product and pricing information is available at
Garmin’s aviation business segment is a leading provider of solutions to Original Equipment
Manufacturer (OEM), aftermarket, military and government customers. Garmin’s portfolio includes
navigation, communication, flight control, hazard avoidance, surveillance, and other products and
services that are known for innovation, reliability, and value.

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