The GRT Sport GRT recognizes that most flying is not hard IFR.  Not every pilot needs the Horizon 1.  With this in mind we set out to design a system for the pilot that wants to fly VFR or the occasional light IFR.  What we came up with was the GRT Sport. The Sport is built with many of the same hardware components as our flagship Horizon Series; including the AHRS, and sun-light readable display. The Sport has most of the functionality of the Horizon and every bit of the quality. Sport S200 HS (EFIS with internal AHRS) $2800. Sport S100 HS (EFIS w/o AHRS) $2000.   Options include: ·        Internal GPS ·        Engine Package (EIS) ·        XM weather ·        ARINC 429 ·        Wide format screen (WS)   Combine an S200 and S100 via our Inter-Display Link for an economical dual display panel. For greater redundancy combine two S200s. Sport Physical Dimensions: Overall Size HS Faceplate : 7.1" wide x 5.25" high x 4.75" deep(Panel opening: 6.25" wide x 5.19" high) Weight 3.5 lbs. Overall Size WS Faceplate : 7.25" wide x 4.75" high x 4" deep (Panel opening: 6.25" wide x 4.65" high) Weight 2.6 lbs. Specifications:   Max Angular Rate: 200 degrees/second, all axis simultaneously   Pitch and Roll Angles Range: Unlimited   Operating Temperature Range: -15 to +160 deg F   ( -25 to +70 deg C)   Storage Temperature Range: -25 to +185 deg F (-30 to + 85 deg C)   Maximum rate of change of temperature: Unlimited   Long Term Reference: Accelerometer and Magnetometer (not GPS dependent - functions without aiding of any type)   Display: Direct sunlight readable, backlit,  wide temperature range,   Min Backlight intensity : 3 nits.   Airspeed Ranges: Low speed version is 35-290 mph indicated, and the high speed version is 50-600 mph indicated.   Altimeter: -1000 to +35,000 feet. Meets IFR accuracy requirements.   Magnetic Heading: <5 degrees error – gyro-stabilized

Horizon Series I Grand Rapids Technologies' flag ship. If you intend to fly a lot of IFR, want an integrated avionics panel with maximum system redundancy the Horizon from GRT is for you. Features of the Horizon EFIS include Garmin radio integration, advanced lateral and vertical autopilot coupling, synthetic approach, dual AHRS with integrity monitoring, reversionary display capability, and more. (Note: subscriptions or additional equipment may be required). System examples: Single Horizon-HS display, Single AHRS. $5000 Dual Horizon-HS displays, Dual AHRS, Engine Monitor with probes (H/ENG-LYC-4). $8350 See Pricing Page for specific display, AHRS and engine packages.  Options: Internal GPS Internal RAIM GPS XM Weather ARINC 429 Additional Displays WS - Wide Format Display HS - High Resolution Display HX - Accelerated processor, Synthetic Vision (shipping April '08) Horizon Physical Dimensions:  Overall Size of HS Faceplate : 7.1" wide x 5.25 high x 3.75 (Panel opening: 6.25" wide x 5.19" high) Weight 3.1 lbs.  Overall Size of WS Faceplate : 7.25" wide x 4.75" high x 3" deep (Panel opening: 6.25" wide x 4.65" high) Weight 2.2 lbs.   Dual AHRS Single AHRS Specifications:   Max Angular Rate: 200 degrees/second, all axis simultaneously   Pitch and Roll Angles Range: Unlimited   Operating Temperature Range: -15 to +160 deg F   ( -25 to +70 deg C)   Storage Temperature Range: -25 to +185 deg F (-30 to + 85 deg C)   Maximum rate of change of temperature: Unlimited   AHRS Aiding: Not required   Display: Direct sunlight readable, backlit,  wide temperature range,   Min Backlight intensity : 3 nits.   Airspeed Ranges: Low speed version is 35-290 mph indicated, and the high speed version is 50-600 mph indicated.   Altimeter: -1000 to +35,000 feet. Meets IFR accuracy requirements.   Magnetic Heading: <5 degrees error – gyro-stabilized

The Basics. What is an EFIS? EFIS is an acronym  for "Electronic Flight Information System". The EFIS provides primary flight data (attitude, altitude, airspeed, vertical speed, steering), graphical engine data, and a moving map. It is designed as a cost-effective replacement of traditional vacuum-powered mechanical gyros. Unlike mechanical gyros, no maintenance is required, and installation is much quicker, easier, and lighter. Aerobatics, vibration, and temperature do not affect the life of the EFIS, as it is completely electronic. In addition to these benefits, the EFIS provides data not available with mechanical gyros, such a navigation steering data integrated with the attitude display, an artificial view of the world showing airports and obstacles just the way they appear out the window,  continuously computed winds, and much, much more. It's easy to get excited about the functionality of EFIS, but it’s more than just features. The GRT EFIS is engineered from the ground up without compromises.  Small details, like a sunlight readable display, wide –15 to +160 deg F operating temperature range, and an attitude/heading reference system (AHRS) that is built to aerospace standards could easily go unnoticed…and that is exactly the idea. Instead, what you notice is how naturally all flight information is communicated…how seamlessly navigation and attitude are combined with a highway in the sky or ILS needles presentation , and the flexibility of the user-configurable features. Even more important are the details that go unnoticed, such as the continuous built-in test functions, the consideration for failure modes and effects,  the validation and cross-check of flight critical data...in short the details you would expect in avionic equipment that gives it the integrity making it suitable for flight...details some other manufacturers are unaware of...details that come from our extensive aviation/aerospace experience. The GRT EFIS goes far beyond the functions of conventional instruments. The elimination of mechanical instrumentation provides advantages not only in the reliability and freedom from maintenance, but also the ability to provide data not previously available, and in a format that more naturally communicates the state of the aircraft to the pilot.