Re: [PSUBS-MAILIST] Tired of Going in Circles

["" <indyair@iquest.net>]

What about a GPS unit? Anyone have any experiences with reception under water? 
I enjoy using my "resonably priced" consumer unit for landlocked events.  Being 
able to capture locations in the database seems usefull for retracing your 
voyage as well.

Steve McQueen
Indianapolis

Quoting No Periscope <noperiscope@yahoo.com>:

> You don't need to spend any money on a DG.....just put any compass out side
> one of your view ports and read it.  The fluid inside will keep it from
> having any problems.....DJB
> 
> Ian Roxborough <irox@ix.netcom.com> wrote:
> Hi Dan,
> 
> great to hear you've been getting your sub wet!
> 
> Have you considered buying a used Directional Gyro off of ebay.com?
> From looking at the completed auctions, a used directional gyro from
> a cessena would go for any where between $10 and $300. I'd hope it
> wouldn't be too hard to find a 12volt vacuum pump. I seem to remember
> something about older econo cars need electric vaccum pumps because
> the engine didn't generate enough vacuum for the break booster (the
> same with some diesels as well). I guess the key with vacuum pump
> is it has to be very very quiet, or only run for a short time will
> it empties a vacuum flask.
> 
> Never handled a Directional Gyro, so this is all guessing of course...
> 
> Thanks,
> Ian.
> 
> On Wed, 20 Oct 2004 21:47:18 -0400
> "Dan H." wrote:
> 
> > Hello All,
> > 
> > Well, I've had My K-350 "Persistence" out several times this summer, and
> now that the local waters are clearing up more as they get cooler, I'll be
> getting in several more dives until it freezes. As of yet, I haven't done a
> deep water test but dived manned to fifty feet several times and had no
> problems. I don't care to take it any deeper then that until I do an unmanned
> deep water test to five or six hundred feet.
> > 
> > I've had a bunch of fun with it, even though I haven't seen anything
> spectacular. With the practice, I'm getting better at controlling it. It
> still bobs some as I'm submerging, but I now keep that down to no more then
> four degrees fore and aft. Running a straight line when going top speed
> (don't ask me how fast but it's faster then one could row) is still
> difficult. The faster I go the easier it is to get in a quick unintentional
> turn. I know a tail fin would help but I don't think I want to add one yet. 
> > 
> > The other thing that I need to do is install some sort of directional
> device. I'm thinking a gyro compass. Once I loose sight through the conning
> tower viewports, I'm traveling blind. Even near the surface, unless the sun
> is shining through the top view port, I can't get oriented and keep it there.
> 
> > 
> > Does anyone know where I can get a gyro compass or anything else to tell
> direction with, other then a new gyro for an airplane out of the catalogue at
> $1600 a pop? Also, most airplane gyros seem to be vacuum powered. I need
> either 12, 24 or 36 volt powered. 
> > 
> > How do you other guys tell direction ? Keep in mind I've been diving in pea
> soup where vis is no better then four feet. To give you an idea how many pees
> are in the soup around here, at forty feet, there is ZERO light coming from
> the surface. With the lights off, IT'S DARK!!!! 
> > 
> > Thanks for any help, Dan H.
> 
> 
> -- 
> 
> 
> 
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