Mid Continent MD41-228 ACU

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 The MD41-28 is a self -contained GPS Annunciation and Control unit. It combines all the

necessary functions required to interface the KLN 89B approach-certified GPS receiver with a remote mounted relay transfer system. In addition, the MD41-28 contains several GPS status annunciations used to indicate modes selected by the front panel switches and various inputs from the GPS receiver. A special ILS override feature has been incorporated to cause the MD41-28 to automatically switch to the NAV mode when the NAV (VOR) receiver is tuned to an ILS

frequency. Other features include dual 40,000 hour lamps used for GPS, NAV, APR and

ACTV annunciations, and Light Emitting Diodes (LED) for MSG and WPT annunciations.


Width: 2.75 Inches

Height: .80 Inches

Depth: 3.22 Inches

Weight: 0.50 lbs.

TSO Compliance: TSO C129

Applicable Documents: RTCA DO-160C, DO-208

Operating Temperature Range: -55°C to +70°C

Humidity: 95% Non-Condensing

Altitude Range: 0 to 55,000 ft.

Vibration: Cat. M and N

Operational Shock: Rigid Mounting, 6 G Operational

15 G Crash Safety

MD41-228 ACU

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  • MD41-228 ACU

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