[PSUBS-MAILIST] Diver propulsion vehicle project

[Alec Smyth]

As soon as I saw the pictures I recognized the prop and shroud as the very
ones we'd been trying to source! I keep spotting these adjustable props on
DPVs but just didn't know where to get them as spares.

:)

Alec


On Thu, Jan 23, 2014 at 1:33 PM, Joe Perkel <josephperkel at yahoo.com> wrote:

> Look at that! We agonized over these very components and I spent many
> hours spinning my wheels for nothing. This is a gold mine!
>
> I second Alec's comments, well done site and documentation,
>
> Fabulous leads Jon, thank you and welcome!
>
>
> Joe
>
>
> Sent from Yahoo Mail for iPad <http://overview.mail.yahoo.com?.src=iOS>
>
>  ------------------------------
> * From: * Jon Eide Pettersen <jon at pettersen-prod.com>;
> * To: * Personal Submersibles General Discussion <
> personal_submersibles at psubs.org>;
> * Subject: * Re: [PSUBS-MAILIST] Diver propulsion vehicle project
> * Sent: * Thu, Jan 23, 2014 6:21:48 PM
>
>   Thanks for the kind words!
>
> The nozzle/shroud has an inside diameter of around 303mm at the narrowest.
> Both the nozzle and the prop are replacement parts for the commercial DPVs
> made by dive-xtras. The shroud cost 70.50$, while the propeller kit is 67$.
> I bought it directly from dive-x here:
> http://www.dive-xtras.com/cart/pc/viewPrd.asp?idproduct=42&idcategory=7.
>
> A nice feature with the propeller is that it has variable pitch, and that
> the blades can be replaced individually. However, the blades are plastic
> and I'm not sure how well they would survive an impact or entanglement. The
> scooters from dive-x have a clutch to save the prop in case this happens.
> Here is a drawing of the propeller assembly used by dive-x:
> http://www.dive-xtras.com/pages/support/diagrams/linedrawings/propellerassembly.pdf
>
> I bought the motor from www.goldenmotor.com. I'm not impressed by the
> build quality, but it was very cheap and hopefully it will work. They also
> have 650w and 800w editions of the same motor, perhaps this would be
> suitable for use in a submersible?
> http://www.goldenmotor.com/BLDC%20Motors%20for%20Light%20Weight%20Trikes.jpg
>
>
> - Jon
>
>
> Den 23.01.2014 16:16, skrev vbra676539 at aol.com:
>
> And barring that, how about a 36 volt 3/4 hp PM motor, housing and drive?
> It would be sweet to cook something DIY up that could be built by a
> competent home machinist.
> Vance
>
>
> -----Original Message-----
> From: Alec Smyth <alecsmyth at gmail.com>
> To: Personal Submersibles General Discussion
> <personal_submersibles at psubs.org>
> Sent: Thu, Jan 23, 2014 9:10 am
> Subject: Re: [PSUBS-MAILIST] Diver propulsion vehicle project
>
>  Hi Jon,
>
>  Welcome! That is a nicely documented project, and very timely since we
> recently had threads about kort nozzles and magnetic couplers. Quick
> question... could you tell me what diameter that nozzle (aka shroud) is and
> how much it and the prop cost? I'm curious about adapting those to trolling
> motors.
>
>
>  Best,
>
> Alec
>
>
> On Thu, Jan 23, 2014 at 8:47 AM, Jon Eide Pettersen <
> jon at pettersen-prod.com> wrote:
>
>> Hi!
>>
>> I'm currently designing and building a diver propulsion vehicle with a
>> magnetically coupled drive. I will use a 48v 500w BLDC motor intended for
>> electric trikes, powered by 4 SLA batteries coupled in series.
>>
>> I'm posting my progress at my personal website,
>> http://pettersen-prod.com/project/dpv/index.html.
>>
>> Anyway, hope you find this interesting! I hope to build a submersible in
>> the future, but this will suffice until I have the funding and knowledge
>> needed :)
>>
>>
>> Regards,
>> Jon Eide Pettersen
>> _______________________________________________
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>>
>>
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