[PSUBS-MAILIST] more Esmae video

Thu Apr 14 18:15:01 EDT 2016

Have fun cutting up the keel Brian.
Look forward to the progress.
Alan

Sent from my iPad

> On 15/04/2016, at 9:01 am, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> I've got plenty of room in the bottom of my concrete ballast structure to put lead, which is actually slightly lower than the bottom of the sphere.  Just looking at the video I need enough to sink the top half of the sphere.  That works out to be around 2000 lbs or so of lead.  Volume of sphere is 65 cu ft.  Then I'll have to make sure it sinks evenly longitudily , so I may have of spread the weight out a bit or add to the nose. 
>  
>   Just scored about 1000 lbs of lead at the boatyard !    A wrecked sailboat keel  !     We'll make it work !
>  
> Brian 
> 
> --- personal_submersibles at psubs.org wrote:
> 
> From: via Personal_Submersibles <personal_submersibles at psubs.org>
> To: personal_submersibles at psubs.org
> Subject: Re: [PSUBS-MAILIST] more Esmae video
> Date: Thu, 14 Apr 2016 11:20:29 -0400
> 
> Brian,
> Alec imparted some education to me one time on roll control.  When he added side ballast tanks to Snoopy, I asked why he had mounted them so they were partially above the waterline when surfaced.  He explained that when the vessel rolls to one side, the tank on that side then becomes more submerged and provides more "lift."  Simultaneously the tank on the other side rises and provides less lift.  The net effect is automatic roll dampening.
> Jim T.
>  
>  
> In a message dated 4/14/2016 9:18:04 A.M. Central Daylight Time, personal_submersibles at psubs.org writes:
> Hi Alan,   Going to add a lot of weight to the bottom of the concrete ballast , at the very bottom.  Need to cut an access hole in that area so I can put lead bars in there and bolt them in.
>  
> Brian
> 
> --- personal_submersibles at psubs.org wrote:
> 
> From: Alan via Personal_Submersibles <personal_submersibles at psubs.org>
> To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
> Subject: Re: [PSUBS-MAILIST] more Esmae video
> Date: Thu, 14 Apr 2016 19:17:46 +1200
> 
> Another interesting video Brian.
> I see what you mean about the stability.
> Pity you couldn't have sunk her completely to see how stable 
> she was once that big conning tower was under the water.
> What's the next step?
> I am not sure I am getting all the posts so apologies if I'm doubling 
> up on any one else's comments.
> Alan
> 
> Sent from my iPad
> 
> On 13/04/2016, at 10:19 am, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Hi All,
>                 Here is some additional video made by a friend of mine:
>  
> https://vimeo.com/162570037
>  
> Brian
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