[PSUBS-MAILIST] gyro compass

Mon Jun 27 10:05:29 EDT 2016

A Raytheon Standard 22 Gyrocompass is 24 VDC. Crazy expensive though.

Hank - does the problem manifest itself at depth under all circumstances, or only in close proximity to the bottom? I'd be inclined to believe that it is either compass malfunction under pressure, or influence of your vessel throwing it out, rather than local magnetic anomaly. The latter is certainly possible though.  Where is it mounted, and do your thrusters or any other operating equipment have an influence on it?

Sean

On June 27, 2016 7:48:48 AM MDT, "MerlinSub at t-online.de via Personal_Submersibles" <personal_submersibles at psubs.org> wrote:
> 
>Air or vaccum power will not work in a sub.
>Try a electric one.
>24 Volt or 12 V are rare - normaly 400 volt and high frequency - you
>need a 
>transformer.
> 
>But notice:
> 
>The get out of course after 0,5 - 2 hours. And will be normaly
>re-adjust by 
>a magnetic one in a aircraft.
> 
>Ebay cheaps are often out of service / out of course. The normaly run
>but 
>get quick out of course.
>Units with work proper certificate (Airworthy) are much more expensive.
> 
>Buy three and select the best working - sale the rest again.
> 
>vbr Carsten
> 
> 
> 
> 
> 
>-----Original-Nachricht-----
>Betreff: Re: [PSUBS-MAILIST] gyro compass
>Datum: 2016-06-27T02:18:46+0200
>Von: "k6fee via Personal_Submersibles"
><personal_submersibles at psubs.org>
>An: "Personal Submersibles General Discussion" 
><personal_submersibles at psubs.org>
> 
> 
> 
>Hank, 
> 
>Try using a gyro compass ( or atifical horizon) from an aircraft. They
>sre 
>either air, vaccum or electric  powered.
> 
>Keith 
> 
> 
> 
>Sent from my Verizon, Samsung Galaxy smartphone
> 
>-------- Original message --------
>From: hank pronk via Personal_Submersibles 
><personal_submersibles at psubs.org>
>Date: 6/26/16 4:11 PM (GMT-08:00)
>To: Personal Submersibles General Discussion 
><personal_submersibles at psubs.org>
>Subject: [PSUBS-MAILIST] gyro compass
> 
>I am going to try to make a gyro compass, looks doable.  I don't care
>about 
>what direction I am going-I just want to go in a strait line.  I will
>point 
>the sub in the direction I want to go at the surface, then turn on the
>gyro 
>and sink.   Then I can just follow the gyro.
>Hank
>
>
>------------------------------------------------------------------------
>
>_______________________________________________
>Personal_Submersibles mailing list
>Personal_Submersibles at psubs.org
>http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20160627/f65148dd/attachment.html>