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Beech 1900 D system ?

chperplt

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Anyone know what the Transponder normal/override switch is actually for?
 

vja217

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2nd xpndr

Doesn't that toggle between your primary and secondary transponders?
 

chperplt

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No, it doesn't do that... There is a switch on the transponder itself that toggles between #1 and #2.
 

Jack Hass

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believe it toggles the transponder between the captains and Fo's altimeter
 

chperplt

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Nope.. There is a toggle switch right next to the normal/override switch that does that.
 

flint4xx

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If you have Tcas, I think you can remove it and then operate the transponder via the over-ride since there are some shared components. It has been awhile so don't quote me.
 

1800 RVR

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From my understanding, the norm/override switch was for ground ops when they are using surface movement radar. It was to help identify your location. It's been awhile since I've flown the airplane, but I think that is what I remembered. (Then again, maybe the checkairmen were just blowing smoke up my backside...)
 

fly26

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If my memory serves me correctly, 1800RVR is right.

With the switch in the Normal position, the transponder only emits a signal in flight. In Override, it emits a continuous signal in flight AND on the ground.
 

chperplt

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Fly26

You are correct. I got an e-mail from a FlightSafety Beech guru and that's exactly what he said. The normal position will put the transponder in standy-by with weight on wheels.
 
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