[PSUBS-MAILIST] gyro compass

[Alan James via Personal_Submersibles]

Hank, why would you want a turn & bank indicator above some sought of compass?There are a multitude of inexpensive underwater compasses that scuba divers use,although they may be a bit small to be read at a distance. Possibly there is someissue with the compression of the oil stopping your compass from functioning?Mounting the compass outside the hull seems to be standard practice & I haven'theard of any failing. Perhaps someone with previous issues with them could comment.Alan 

      From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
 To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
 Sent: Monday, June 27, 2016 10:37 PM
 Subject: Re: [PSUBS-MAILIST] gyro compass
   
Kieth,I stand corrected, a turn and bank indicator is just the ticket and tons of them on eBay for cheap.  I was focusing on compass only, but these indicators are much cheaper and more available.  Thanks' for the tipHank 

    On Sunday, June 26, 2016 6:25 PM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
 

 Hi Kieth,My understanding is the aircraft units are noisy, I assume that is the air units.  They are hard to find in guaranteed working condition for a price that works for me.  If you know of any for a descent price-please let me know.Hank 

    On Sunday, June 26, 2016 6:16 PM, k6fee via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
 

 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
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