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RE: [PSUBS-MAILIST] Rainy day work



Frank,  The handle ends could be dipped in that rubber type coating you see used to dip the handles of tools in, like pliers and such, after you pant, galvanize, or chrome them. You can usually find a quart can of that product in your local hardware store.  I'm not to worried about adding collision protection bars on my metal hatch viewport, since it's small and will be much thicker then needed, as well as be a conical type. I will also have a very gradual curve to all the viewport seat surfaces that protrude above the hatch head surface for good hydrodynamics.

Regards,
Brent Hartwig



From: ShellyDalg@aol.com
Date: Sun, 27 Jan 2008 00:20:46 -0500
Subject: Re: [PSUBS-MAILIST] Rainy day work
To: personal_submersibles@psubs.org

Hi Brent. I'm glad to report the snow has melted away. Never did like that stuff.
I won't be putting a window in the hatch. My thought is that any window needs bars around it incase of impact. I want to make this sub as sleek as possible. Less chance of entanglement. and less drag.
My two front/upper windows are angled slightly up so I can see pretty good above when surfacing. I will be putting a camera on the top to act like a periscope. With tilt and swivel, I should be able to see what I can't through the windows.
As for hitting my head on the hatch dogs, they are pretty much out of the way when closed. Because I don't have a tower, the top of the hatch dome is 55 inches off the floor, and there's lots of head room for two people sitting side by side.
The cold is a problem I haven't solved yet.
The small hole in the hatch dome was for machining set-up, but I'll use it for an air bleed incase I need to flood and escape.
I'm thinking of plating the hatch assembly, rather than painting. Chrome is my first choice, but brass might be nice too. I've got to take it into town and let the plate shop see it before I make that decision.
Frank D.