The 3-Pack is Back! Trusted, 2-inch Standbys Go Digital


ORLANDO, Fla. (April 24, 2023) — Mid-Continent Instruments and Avionics, a technology company and world leader in the design and manufacture of aerospace products, today introduced an all-digital version of the company’s popular 2-inch standby package. The new, digital standby family features the company’s Flex® Attitude Indicator, Flex® Counter Drum Encoding Altimeter, and Flex® Airspeed Indicator. All three instruments are supported by an Approved Model List (AML) Supplemental Type Certificate (STC) covering more than 180 aircraft models. 

“Our original mechanical, 3-Pack was the most trusted, Type Certified and STC’d standby of its day. There are thousands of these instruments still flying on aircraft and they’re ready for an upgrade,” said Van Winter, Director of Aftermarket Sales and Support for Mid-Continent Instruments and Avionics. “The new Flex digital standbys can be easily installed in one day,” Winter continued. “There’s no need to cut the panel and you can utilize the existing secondary or emergency bus. Less down time means more flying time.” 

Flex® Digital Attitude Indicator  

  • Solid-state display 
  • Independent attitude without the need for GPS, magnetometer or airspeed 
  • Displays attitude, slip, turn rate and heading during normal or standby operation 
  • Heading with primary avionics via external ARINC input 
  • NVIS compatible versions available  

 Flex® Digital Counter Drum Encoding Altimeter  

  • User-selectable 
    • Altitude target 
    • Approach Minimums alert 
    • Vertical speed indication 
    • 6-second vertical trend 
    • Barometric setting (millibars, hectopascals or inches of mercury) 
  • Certified to 55,000 feet (16.8 kilometers) AGL 
  • SSEC customization and NVIS compatible versions available 

Flex® Digital Airspeed Indicator  

  • Configurable range markings  
  • Eliminate time and cost of mechanical range markings 
  • Ground Speed and True Air Speed can be displayed with external ARINC input 
  • User-selectable Mach number display 
  • Configurable dynamic VMO/MMO barber pole indicator  
  • NVIS compatible versions available 

 The Flex Digital Attitude Indicator, Counter Drum Encoding Altimeter, and Airspeed Indicator feature smooth, daylight-readable LCD graphics and a simple user interface. They are FAA TSO certified, RTCA DO-160G qualified, and RTCA DO-178C qualified to Design Assurance Level A.  

 The Flex 2-inch digital instruments can be sold as a set with special 3-Pack pricing or sold individually. For more information, contact Van Winter, Director of Aftermarket Sales and Support, at 316-630-0101 or visit  

About Mid-Continent Instruments and Avionics

Mid-Continent Instruments and Avionics manufactures, overhauls and repairs aircraft instruments, avionics and advanced power solutions for the global aerospace industry. Mid-Continent supports general, business and commercial aviation, unmanned aerial vehicles (UAV), defense, and special missions markets. The company manufactures more than 25,000 units per year and processes more than 15,000 units in its overhaul, exchange and repair operation. The Quality Management System of the Wichita, Kansas manufacturing facility is AS9100D and ISO9001:2015 certified. For additional information, visit