2-inch
Digital Attitude Indicator

The MD23-342 is a solid-state instrument that displays attitude, slip, turn rate and heading information during normal or standby operation. The certified, digital attitude indicator provides independent attitude without the need for GPS, magnetometer or airspeed.

Night Vision Imaging System (NVIS) compatible versions are available.

2-inch Digital Attitude Indicator

Benefits and Specifications

Four Primary Functions Attitude, slip, turn rate and heading
Utilize modern solid-state MEMS gyro and accelerometer
ARINC Heading with primary avionics via external ARINC input
Easy Installation User-selectable panel tilt and roll-offset
Size Fits standard 2-inch panel cutout
Battery Rechargeable, field-replaceable emergency battery (available)
Lightweight Weighs just 0.4 lbs
Simple user interface Single, push-and-turn control knob
Display Daylight readable LCD and smooth, high-resolution graphics
Lighting Manual, external lighting control or built-in photocell for automatic dimming
Night Vision Imaging System (NVIS) NVIS compatible units (available)
Certified TSO certified (Design Assurance Level A)
Made in the USA Designed and built in Wichita, Kansas, USA
Warranty Two-year limited warranty
Power Input 10–32 VDC
0.14A @ 28 VDC; 4 watts nominal
Data Input ARINC 429: Low or high speed; Label 320
Data Output ARINC 429: Low or high speed; Labels 320, 324, 325
Operating Range 360° angle, 500° per second for pitch and roll (maximum)
Lighting 5, 14, or 28 VDC external control or internal photocell for automatic dimming
Battery Rechargeable, field-replaceable emergency battery supply (available)
P/N 6430006-(1)
Technology: Nickel-Metal Hydride (NiMH)
Attributes: 0.25A @ 24 VDC nominal (6 Wh capacity)
Runtime: 60 minutes @ 0.25A
Weight 0.4 lbs (0.17 kg)
Mounting Rear panel mounted, (4) #6–32 screws, 2.25-inch round bezel
Dimensions 2.43″W x 2.43″H x 1.0″D (61.7mm x 61.7mm x 25.4mm)
Mating Connector P/N 9019162-1: 26-pin, D-Sub electrical connector (Quick Disconnect)
Certification FAA TSO certified to C3e, C4c, C8e, C10c, C106, C113b, C201
RTCA DO-160G qualified
RTCA DO-178C qualified, Design Assurance Level (DAL) A
Rights U.S. Patent 11,048,389

Digital Attitude Indicator Supplemental Type Certificates (STCs)

Select your aircraft manufacturer from the dropdown menu to view a list of applicable STCs.

Manufacturer: Aerostar

STC Number Aircraft Model
SA02010WI
  • PA-60-600
  • PA-60-601
  • PA-60-601P
  • PA-60-602P
  • PA-60-700P

Manufacturer: Beechcraft

STC Number Aircraft Model
SA02010WI
  • B-95A
  • D-95A
  • E95
  • 95-55
  • 95-A55
  • 95-B55
  • 95-B55A
  • 95-B55B (T-42)
  • 95-C55
  • 95-C55A
  • D55
  • D55A
  • E55
  • E55A
  • 56TC
  • A56TC
  • 58
  • 58A
  • G58
  • 95
  • B95
SA02010WI
  • 65 (L-23F)
  • A65
  • A-65-8200
  • 65-80
  • 65-A80
  • 65-A80-8800
  • 65-B80
  • 65-88
  • 65-90
  • 65-A90
  • 65-A90-1 (JU-21A)
  • 65-A90-1 (U-21A)
  • 65-A90-1 (RU-21A)
  • 65-A90-1 (RU-21D)
  • 65-A90-1 (U-21G)
  • 65-A90-1 (RU-21H)
  • 65-A90-2 (RU-21B)
  • 65-A90-3 (RU-21C)
  • 65-A90-4 (RU-21E)
  • 65-A90-4 (RU-21H)
  • 70
  • C90
  • C90A
  • C90GT
  • C90GTi
  • B90
  • E90
  • H90 (T-44A)
SA02010WI
  • T-34 Series: (TC 5A3)
  • (45(YT-34)
  • A45 (T-34A, B-45)
  • D45 (T-34B)
SA02010WI
  • 390
SA02010WI
  • 99
  • 99A
  • 99A (FACH)
  • A99
  • A99A
  • B99
  • C99
  • 100
  • A100 (U-21F)
  • B100
SA02010WI
  • 58P
  • 58PA
  • 58TC
  • 58TCA
SA02010WI
  • 200
  • 200C
  • B200
  • B200C
  • B200T
  • B200CT
  • B200GT
  • 1900
  • 1900C
  • 1900C (C-12J)
  • 1900D
  • 300
  • 300LW
  • B300
  • B300C
  • B300C (MC-12W)
  • B300C (UC-12W)
SA02010WI
  • F90

Manufacturer: Cessna

STC Number Aircraft Model
SA02010WI
  • 310
  • 310A (USAF U-3A)
  • 310B
  • 310C
  • 310D
  • 310E (USAF U-3B)
  • 310F
  • 310G
  • 310H
  • E310H
  • 310I
  • 310J
  • 310J-1
  • E310J
  • 310K
  • 310L
  • 310N
  • 310P
  • T310P
  • 310Q
  • T310Q
  • 310R
  • T310R
SA02010WI
  • 320/335/340 Series: 320
  • 320-1
  • 320A
  • 320B
  • 320C
  • 320D
  • 320E
  • 320F
  • 335
  • 340
  • 340A
SA02010WI
  • LC40/41/42/T240 (Lancair/Columbia/Corvallis)
  • (LC40-550FG, LC41-550FG, LC42-550FG, T240)
SA02010WI
  • 510
SA02010WI
  • Citation 525 Series: 525
  • 525A
  • 525B
  • 525C
SA02010WI
  • 501
  • 551
SA02010WI
  • 441
SA02010WI
  • 208
  • 208B
SA02010WI
  • 401
  • 401A
  • 401B
  • 402
  • 402A
  • 402B
  • 402C
  • 411
  • 411A
  • 414
  • 414A
  • 421
  • 421A
  • 421B
  • 421C
  • 425

Manufacturer: Dornier Luftfahrt GmbH

STC Number Aircraft Model
SA02010WI
  • Do 28D
  • Do 28D-1
  • Dornier 228-100
  • Dornier 228-101
  • Dornier 228-200
  • Dornier 228-201
  • Dornier 228-202
  • Dornier 228-212

Manufacturer: Learjet Inc. (Bombardier Inc.)

STC Number Aircraft Model
ST01138DE
  • 24
  • 24A
  • 24B
  • 24B-A
  • 24C
  • 24D
  • 24E
  • 24F
  • 24F-A
  • 25
  • 25A
  • 25B
  • 25C
  • 25D
  • 25F
  • 31
  • 31A
  • 35
  • 35A (C-21A)
  • 36
  • 36A
  • 55
  • 55B
  • 55C
  • 60

Manufacturer: Mitsubishi

STC Number Aircraft Model
SA02010WI
  • MU-2B-25
  • MU-2B-26
  • MU-2B-26A
  • MU-2B-35
  • MU-2B-36
  • MU-2B-36A
  • MU-2B-40
  • MU-2B-60
SA02010WI
  • MU-2B
  • MU-2B-10
  • MU-2B-15
  • MU-2B-20
  • MU-2B-25
  • MU-2B-26
  • MU-2B-30
  • MU-2B-35
  • MU2B-36

Manufacturer: Pilatus

STC Number Aircraft Model
SA02010WI
  • PC-12
  • PC-12/45
  • PC-12/47
  • PC-12/47E

Manufacturer: Piper

STC Number Aircraft Model
SA02010WI
  • PA-42
  • PA-42-720
  • PA-42-1000
SA02010WI
  • PA-46-310P
  • PA-46-350P
  • PA-46R-350T
  • PA-46-500TP
  • PA-46-600TP
SA02010WI
  • PA-42-720R

Manufacturer: Twin Commander

STC Number Aircraft Model
SA02010WI
  • 690
  • 690A
  • 690B
  • 690C
  • 690D
  • 695
  • 695A
  • 695B
SA02010WI
  • 500
  • 500A
  • 500B
  • 500U
  • 520
  • 560
  • 560A
  • 560E
  • 500S
SA02010WI
  • 700

Manufacturer: Viking Air

STC Number Aircraft Model
SA02010WI
  • DHC-6-1
  • DHC-6-100
  • DHC-6-200
  • DHC-6-300
  • DHC-6-400

MD23-342 Resources

Product Fliers and Brochures
Technical Documents
Service Notifications
FAA Approved Model List (AML)

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