What is the GRT difference?
Your total system cost could be up to 20% less than our closest competitor's system.
We have the only AHRS in the industry that can operate unaided
in the event of loss of airspeed, GPS or magnetic heading.
Our EGT Time History graph makes it easy to distinguish between engine problems affecting one cylinder, or the entire engine. This distinction could be essential when making decisions in response to engine problems.
Need help? We are only a phone call away. Our top level technicians and engineering staff are here to keep you flying.
- GRT Avionics in 2022 Lindy Award Winner
Congratulations to Scott McElroy for winning a 2022 Lindy Award plaque for Outstanding Workmanship on his beautiful Horizon HXr equipped RV-8, N332RT. It’s N-number, red tail and overall paint scheme pay tribute to the 332nd Fighter Group, also known as the Tuskegee Airmen.
- GRT Discovery ADS-B Receiver Install in a Kitfox 7
Brian Bowen of Project Kitfox installs and demonstrates a GRT Discovery ADS-B receiver.
- Important Service Bulletin 10.1 Series EFIS Displays Serial #3000-3140
GRT Avionics Service Bulletin – 10.1 Series EFIS Mod A, March 28, 2022This service bulletin is for the field repair of 10.1 series EFIS displays. This repair is an authorized customer installed modification. It requires approximately 10 minutes to complete. Contact GRT Avionics to receive modification parts free of charge. If you do not feel you have the ability to perform this modification, fill out a Service Request Form available on our website and send the EFIS to GRT Avionics. GRT Avionics will modify the EFIS and return the EFIS to the customer free of charge (ground shipping only).
IssueIt has come to our attention that some 10.1 series displays may have intermittent side row button functions.
Affected UnitsAll Horizon 10.1 and Sport 10.1 EFIS models with serial numbers between 3000 and 3140. Check your EFIS ID plate. If it has a hole thru the ID plate in the “Mods” section, where the “A” was or if the “A” is scribed out, your EFIS has already been modified and no further action is necessary.
Repair actionThe modification requires the installation of two insulating shims between the rear cover and main circuit board. This modification is known as “Mod A”. 10.1 Series EFIS Mod A Instructions