Copyright © 2016  Grand Rapids Technologies, Inc.                      

Electronic Flight Instrumentation for Experimental Aircraft Since 1991

Welcome, Van’s RV Enthusiasts!

Read about Horizon HX and HXr EFIS systems– Relied upon every day by Team AeroDynamix pilots for both IFR performance and precision aerobatics.

Engine Monitors

From 2-strokes to turbines- Over 22,000 engines have been instrumented by the GRT EIS.

Justin Lewis of Lewis & Clark Performance, LLC, and his FLS Microjet rely on an EIS and 2 Horizon EFIS screens.

GRT Home Page

Learn more about the GRT SPORT EFIS, featured in the new SPA Panther kitplane - Starting at $2,600

Electronic Flight Instrumentation Systems

Photo by Dean Wingard

HorizonHX Mini

The “Mini”

The 4.3” EFIS

Primary or Backup

Systems starting at $1,195.


Find out why we are renowned for our autopilot performance.

Free flight director simplifies hand-flying!