Re: [PSUBS-MAILIST] Rudder control

["Andrew Goldstein" <ag@desertstar.com>]

The nasty thing about oil compensation is that it can get real messy real fast.  But it is often they
easiest,  cheapest, best method of insuring a seal.  Ive seen a variety of fluids used depending upon the application,
for example you may want to use a different fluid when compensating batteries as opposed to a motor.  You would want
to insure o-ring compatibility though.  Other parameters that you may want to worry about are electrical and thermal conductivity, etc.

Yes, MBARI is really cool.  They also just got a new ROV so maybe you can get some cheap thrusters when they
decommission the old one ;)

-a

-----Original message-----
From: ShellyDalg@aol.com
Date: Fri, 15 Aug 2008 14:44:00 -0700
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Rudder control

> Hi Doug. I've often considered using oil compensation. I know it's popular  
> with the guys and the "big outfits" like Alvin etc. use oil. I may end up using 
>  that as compensation after all. I will be finishing the sub, testing, and  
> learning how to operate it for a while yet, so that decision can be put off for 
>  a while. I think a type of vegetable oil is used most commonly. Got any info 
> on  that? I'll go down and talk to the guys at the MBARI research station and 
> see  what they use. The have ROV's that go down to at least 4000fsw and it's 
> real  close to here. They are pretty friendly too. Sure would be nice to use 
> their  shop! Lots of cool stuff going on there.
> Frank D. 
> 
> 
> 
> **************Looking for a car that's sporty, fun and fits in your budget? 
> Read reviews on AOL Autos.      
> (http://autos.aol.com/cars-Volkswagen-Jetta-2009/expert-review?ncid=aolaut00030000000007 )
> 
> 



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