[PSUBS-MAILIST] Dive fail.

Mon Jul 6 16:53:18 EDT 2015

in fact, this is a classic example  of why making a full scale mock up
would be a good idea.  If I had done that, I would have known they were
rubbish.....but we learn...

James

On 6 July 2015 at 21:50, James Frankland <jamesf at guernseysubmarine.com>
wrote:

> Hi Carsten, Pete.
>
> Yes, the 5 portholes were supposed to be so I could see out.  I thought it
> was a good idea, but they are too small and too far away from the main dome
> to be of any real use.   I can see a little and they do let light through,
> but as I said, they are "nearly useless".  I am diving this weekend (I
> hope!) so I will take a picture and you can judge for yourself.  I have
> sealed them now with sikaflex so I don't think they will leak.
>
> Regards
> James
>
>
> On 6 July 2015 at 21:44, Pete Niedermayr via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> James, You use the phrase "The nearly useless windows that I put on the
>> forward tank" is that because of your disappointment with the leak or
>> because they don't provide the visibility you had hoped for.
>>
>> Pete
>> --------------------------------------------
>> On Mon, 7/6/15, James Frankland via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>>  Subject: [PSUBS-MAILIST] Dive fail.
>>  To: "Personal Submersibles General Discussion" <
>> personal_submersibles at psubs.org>
>>  Date: Monday, July 6, 2015, 4:04 AM
>>
>>  Hi
>>  All,
>>  I had a failure of a day on Sat.  I put the boat in, and
>>  it had a
>>  leak.  Not into the pressure hull, so it wasn’t a
>>  complete failure, but
>>  the leak was from the forward main tank.  The nearly
>>  useless windows that I put on the forward tank were leaking
>>  air.  Not just a little bit which I could have put up with
>>  it, but loads.  The boat was diving quicker than venting
>>  normally.
>>   I
>>  pulled it out and went around tightening them up.  Put it
>>  back in and it didn't make any
>>  difference. It
>>  was strange as they have been perfectly ok before.  I think
>>  the problem is that on Friday while I was prepping the boat
>>  for diving, I went around and tightened the bolts.  It must
>>  have broken the seals.   Anyway.  I could have
>>  possibly winged it by running with a reduced main ballast,
>>  but as
>>  I was heading into the open sea, I thought I best be
>>  sensible and call it off.
>>
>>
>>
>>  So
>>  It was in for about 10 minutes.  Pulled it out and was home
>>  by 8:30, very
>>  disappointed. Spent the afternoon sticking them in with
>>  Sikaflex and moaning. Hope these pics make it through.  You can
>>  just see the air spilling from the widows in the second
>>  picture and the boat is going down nose
>>  first. Kind RegardsJames
>>  
>>  
>>
>>
>>  -----Inline Attachment Follows-----
>>
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