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MD23-225

Model #: MD23

Flex Digital Airspeed Indicator

2-inch, 160, 200, 300, 400 or 500 knots/MPH (configurable), LCD

Manufactured by Mid-Continent Instruments and Avionics
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  • List Price: $5,500.00
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Configurable range markings eliminate the extra time and cost of mechanical range markings

  • Configurable range up to 500 knots (or MPH), range markings and dynamic MMO barber pole indicator
  • User-selectable Mach number display ON/OFF
  • Ground Speed and True Air Speed indication via ARINC 429
  • Standard 2-inch size
  • Lightweight — 0.4 lbs
  • Simple user interface — Single, push-and-turn control knob
  • Daylight readable LCD and smooth, high-resolution graphics
  • Manual external lighting control or built-in photocell for automatic dimming
  • Night Vision Imaging System (NVIS) compatible (available)
  • TSO certified (Design Assurance Level A)
  • Designed and built in Wichita, Kansas, USA
  • Two-year limited warranty
Power Input
10–32 VDC
0.14A @ 28 VDC; 4 watts nominal

Data Input
ARINC 429: Low or high speed; Labels 210, 312
Pressure: Absolute/static and differential/pitot (Quick Disconnect)

Data Output
ARINC 429: High speed; Labels 205, 206

Operating Range
Configurable range of 160, 200, 300, 400 or 500 knots

Units of Measure
Knots or miles per hour (MPH)

Lighting
5, 14, or 28 VDC external control or internal photocell dimming

Weight
0.4 lbs (0.17 kg)

Mounting
Rear panel mounted, (4) #6–32 screws, 2.25-inch round bezel

Dimensions
2.43 x 2.43 x 1.0 inches (61.7 x 61.7 x 25.4 millimeters)

Mating Connector
P/N 9019162-1: 26-pin, D-Sub electrical connector (Quick Disconnect)
P/N 9019162-2: Pneumatic fittings (Quick Disconnect)

Certification
FAA/EASA TSO certified to C2d, C106, C113b
RTCA DO-160G qualified
RTCA DO-178C qualified, Design Assurance Level (DAL) A

Rights
U.S. Patent 11,048,389
6420023 Installation Manual
6420023 Technical Drawing

Product Flier
MD23-225 Product Flier

User Guide
MD23-225 User Guide

Service Bulletins
MD23-01
MD23-02
MD23-03

Software Updates

Click the button below to be redirect to the FLEX® MD23 Standard Unit Software Update page.

Software Version 1.1.0
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