Re: [PSUBS-MAILIST] Re: Your Message Sent on Mon, 25 Sep 2000 08:51:05 -0600

["Alan D. Secor" <secor@btv.ibm.com>]

Dale,

How did you seal the wires coming out of the motor for the pressure 
compensation?

Al

>-----Original Message-----
>From: Ray Keefer <Ray.Keefer@west.sun.com>
>To: personal_submersibles@psubs.org <personal_submersibles@psubs.org>
>Date: Monday, September 25, 2000 10:26 AM
>Subject: [PSUBS-MAILIST] Re: Your Message Sent on Mon, 25 Sep 2000
>08:51:05 -0600
>
>
>>Hi Dale,
>>
>>Very good progress!
>>
>>Just to stimulate fine build checkout discussion:
>>
>>How did you detect the leak?
>>How did you get the pressure compensation for the motors?
>>How are you going to weigh your sub?
>>What are you plans for in water testing?
>
>
>leaks were detected using soapy water on all of the fittings, when pressure
>was applied.... this one I could hear though...
>
>Pressure compensation was my own design.. I modified an air regulator, and
>took outside pressure from the same line I am using for my depth gauge.. I
>ran the compensation down the stainless motor rotating shafts(the ones used
>to control the rotation of the motor from inside the sub.)  This way I am
>using a completely stock motorglide trolling motor, and if something happens
>to it, I only have to go and buy another one, and put it on..
>
>My sub will be weighed at a scale used to weigh large trucks.  I will weigh
>my truck and trailor, then put the sub on the trailor, and weigh the whole
>thing again.... the difference will be the weight of the sub..
>
>My plans for testing this fall, will be -- use a large trac-hoe to lift the
>sub into a small pond (actually a man made pond, solid bottom) that is about
>25 feet deep.  it will stay hooked to the trac-hoe until I find out if I
>have any leaks, and the boyancy is correct.. If I have any problems, It will
>lift me out of the water..
>
>Before I use the sub to any depth, I am also going to test it to 400 feet
>for 1 hr, unmanned, but that will have to wait until spring..this first test
>will be to get it wet, and check if all the systems work properly..
>
>
>dale.
>
>
>

--
Alan D. Secor
e-mail: secor@btv.ibm.com