[PSUBS-MAILIST] G.L. summary Pressure Hull

[Vance Bradley]

Linear meaning a steady increase in demand in parallel to rising pressure. If you have a low rise with a sudden increase somewhere along the line then you may have a component not working as it should.
Vance

Sent from my iPhone

On Dec 14, 2013, at 3:02 PM, hank pronk <hanker_20032000 at yahoo.ca> wrote:

> Hi Vance,
> I did not have it in the sub so it was not hooked up to the amp gauge.  What do you mean by linear.
> Hank
> 
> 
> On Saturday, December 14, 2013 11:12:40 AM, Vance Bradley <Vbra676539 at AOL.com> wrote:
> How much did your amperage increase at depth? Was the load increase linear?
> Vance
> 
> Sent from my iPhone
> 
> On Dec 14, 2013, at 1:07 PM, hank pronk <hanker_20032000 at yahoo.ca> wrote:
> 
>> I just did a 1/2hr run on my new drive with the shaft tube full of water and under 500psi.  The seal works perfectly and there is very little heat build up.  I was surprised how much the motor pulls down after 200psi.  I assume it is from the shaft pushing into the thrust bearing.  Also I am running the motor on 12v because it spins to fast on 24 with no load.
>> Hank
>> 
>> 
>> On Thursday, December 12, 2013 1:27:28 PM, hank pronk <hanker_20032000 at yahoo.ca> wrote:
>> Vance,
>> Thank you, it only took me two tries to make the assembly and 5 tries to make the shaft.  Rookie machinist and all.  :-)
>> Hank 
>> 
>> 
>> On Thursday, December 12, 2013 12:36:27 PM, Alan <alanlindsayjames at yahoo.com> wrote:
>> Carsten,
>> Your friends in Hamburg wouldn't be happy with the get wet solution.
>> As an after thought on my ambient, I put a AOP valve above my
>> head & through the dome. It works the opposite way round, so that if
>> I dive too quick & the hull doesn't equalise, I get water on my head.
>> The hull is equalised with divers regulators so better to get wet
>> than the regulator diaphragm rupturing.  The manual operation of the
>> AOP let's me flood up to the top of the dome in an emergency exit,
>> as there may be too much force on the latches to open them with
>> air in the dome. 
>> Alan
>> 
>> 
>> Sent from my iPad
>> 
>> On 13/12/2013, at 7:33 AM, " " <MerlinSub at t-online.de> wrote:
>> 
>>> 
>> 
>> If you have an over-pressure valve handle obstructing the Alan
>> movement of the hatch latch handle, it would need to be
>> spring loaded or you would create the problem of the possibility
>> of diving with the valve open later on.
>> 
>> 
>> Yes, and if you dive with a open valve you get wet
>> learn to close it and learn to read you "pre-dive" checklist. 
>> 
>> :-O   
>> 
>> SL not required an blocking mechanism on the hatch - just an 
>> simple spring loaded automatic overpressure valve. 
>> Because of the automatic there is no need to block the hatch. 
>> The air sound of the working valve is a clear signal not to open the hatch.
>> The function of the valve should be anyway mention in the written manual. 
>> 
>> very best regards
>> 
>> Carsten
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