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19 May 2025, 17:05 [ UTC - 5; DST ]


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 Post subject: FS: Directional Gyro $75
PostPosted: 20 Dec 2020, 08:32 
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Joined: 12/11/14
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Aircraft Radio Corp DG for sale. $75.00 + 15.00 shipping


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 Post subject: Re: FS: Directional Gyro $75
PostPosted: 21 Dec 2020, 20:49 
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Joined: 06/13/20
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Aircraft: C33A
When was it last calibrated? do you know?


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 Post subject: Re: FS: Directional Gyro $75
PostPosted: 27 Dec 2020, 20:05 
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I do not know. It was removed for an upgrade 5+ years ago.


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 Post subject: Re: FS: Directional Gyro $75
PostPosted: 27 Dec 2020, 22:57 
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Joined: 05/20/11
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Location: Spencer, IA
Aircraft: Dakota PA-28-236
Username Protected wrote:
When was it last calibrated? do you know?

Just asking but how exactly do you calibrate a simple DG?


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 Post subject: Re: FS: Directional Gyro $75
PostPosted: 27 Dec 2020, 23:42 
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Aircraft: B17,18,24,25,29,58,
Use a calibrator.


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 Post subject: Re: FS: Directional Gyro $75
PostPosted: 27 Dec 2020, 23:55 
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Joined: 12/10/07
Posts: 34730
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Location: Minneapolis, MN (KFCM)
Aircraft: 1970 Baron B55
Username Protected wrote:
When was it last calibrated? do you know?

There's nothing to calibrate in a DG. The gymbal and rotor bearings might need replacing (i.e overhaul) but there's absolutely nothing to adjust or "calibrate".

FWIW, a DG can easily be tested for proper operation, just spin it up with the appropriate pressure drop and see how fast it precesses.

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