[PSUBS-MAILIST] K-350 Mods

[James Frankland]

I cant see the one you mean Joe, is there a product number?

On 29 October 2013 10:54, Joe Perkel <josephperkel at yahoo.com> wrote:

>  James,
>
> Ive given thought to the hatch in the past, take a look at freeman marine
> and look at the cam mechanism with dogs,
> http://www.freemanmarine.com/ProductsHatches.htm
>
> Could not a rotating shaft pass through the center to both sides via same
> thru-hull as side thrusters, with a wheel on both sides and a similar cam
> mechanism on the inside? Upward Port moved a bit forward then, and beef
> up the hinge for extra weight as you said.
>
>
> Joe
>
>   *From:* James Frankland <jamesf at guernseysubmarine.com>
> *To:* personal_submersibles at psubs.org; PSUBS Member Discussion Group <
> member-forum at psubs.org>
> *Sent:* Tuesday, October 29, 2013 5:55 AM
> *Subject:* [PSUBS-MAILIST] K-350 Mods
>
>  Jon\Joe sent a message yesterday i think regarding suggested K-350
> modifications.
>
> I would suggest these as critical.
>
> 1.  Hatch.  Opening from both sides.  Worst part of the design I think.
>
> 2.  Hatch bracket.  Could do with beefing up, it feels a bit flimsy.
> Probably could do with some traingular flanges welding on.
>
> 3.  Variable tank mounting.  The way the tank mounts is awkward and doesnt
> allow any adjustment.  Much easier and better would be flat horizontal
> brackets welded to the battery pods that join to corresponding flat
> brackets on the vbt.  Slotted holes on one of the planes would allow the
> tank to slide forward and back a little to allow that awkward vent to be
> fitted easily.  Also the tank could be just lifted up and on.  Very simple
> change.
>
> I think other than that, other modifications are depending on how much
> trouble you want to go to and cosmetics.
>
> For example,
>
> I changed the battery pod endcap seals.  I had a real pain trying to make
> them as per the plans.  The way i did them in the end with flanges was a
> lot easier.  But probably nothing wrong with the original design.
>
> Skids.  I didnt like the ones shown, they would just get all the paint
> knocked off.  Again, probably nothing wrong with the original design.
>
> I made all the flanges and protrutions from stainless.
>
> Electrical penetrators added to the battery pods to eliminate the ones
> shown on the plans.
>
> The 2 extra downward facing viewports i put in are really good.  You could
> do away with the ones at the back and put them there instead if you didnt
> want to make too many.
>
> The dome of course.
>
> Overpressure valve.
>
> loads of little modifications.
>
>
> I'm at work, and i better get on with some of it, instead of daydreaming
> about subs!
> Kind Regards
> James
>
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