[PSUBS-MAILIST] gyroscope compass

[hank pronk via Personal_Submersibles]

There are all kinds of them on ebay for under 100 dollars, problem is how to make it work. I assume they just have a small motor that spins. There is a nice ship gyro sitting at 50 dollars right now but it is about 1 foot dia.  That would be awesome in a big sub.
Hank  --------------------------------------------
On Wed, 12/3/14, Alec Smyth via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Subject: Re: [PSUBS-MAILIST] gyroscope compass
 To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
 Received: Wednesday, December 3, 2014, 1:48 PM
 
 Absolutely. You can get small ones for civil
 aviation and they are used in subs. One challenge is that
 most airplane ones are powered by a vacuum, but there are
 12V models. Unfortunately they're expensive, but a great
 solution if you can afford it. 
 Alec 
 On Wed, Dec 3, 2014 at 1:28
 PM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
 wrote:
 Hi
 all,
 
 Ever hear of a gyroscopic compass, seems that ships used to
 use them.  It seems they would not be effected by a
 submarine hull.  What am I missing besides they are very
 big.
 
 Hank
 
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