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Very cool. Did that bow plane configiuration remain for the whole life of the boat - and did any others get it?
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Just the WEBSTER. As commissioned I believe it had the sail planes, but got the bow planes after the first or second yard period. When I came aboard as a member of the Blue crew (1971, I think) it had the bow planes. I think they came off about the time I transferred off the boat (1975?) while we waited at the New London Submarine Base to dry-dock at Electric Boat (up river) for overhaul and Poseidon conversion.
DavidWho is John Galt?Comment
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David, the aft end of your sub is covered in a slurry? Is that Nitro-Stan and what?
is there any tips on mixing? I have a ton of small pin holes on the Walrus. Need your help.If you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub.Comment
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Today's work involved getting a stock 3" SD populated with devices and set-up for proper operation of the angle-keeper and Battery Link Monitor:
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Yet more work on the Beast ....
DavidWho is John Galt?Comment
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Here's how you deal with pin-hole voids:
Heat the work up to about 150-degrees. The hot air in those little pockets is not as dense as the ambient air. Quickly brush your slurry (putty or on-cut primer) over the surfaces of the work. As the putty/primer and work cools, the expanded air in the voids contracts, pulling the filler/primer into the voids, filling them (not completely, but enough). This way, when you sand the surface, you don't experience the frustration of opening up the same voids you attempted to fill.
Anyone assembling the early resin kits before the common practice of pressure/vacuum casting (pressure casting something I brought to garage kit industry decades ago ... didn't invent, but popularized through magazine articles and lectures) knows the horror of filling and working a model parts surface possessing those horrible little air-bubbles.
DavidWho is John Galt?Comment
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Thank sir. You do not thin the Nitro-Stan?If you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub.Comment
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The slog continues....
DavidWho is John Galt?Comment
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Question on the bow plane sail - did you skin the Renshape with glass or use the Renshape as a mould?Comment
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Yes, I skinned the hollowed out RenShape (very dense polyurethane foam) with GRP to strengthen it. I would have rather used this item as a master from which would be produced a tool and GRP or resin parts -- but show-time is only ten days away, so speed is what is driving my material and technique choices here. This particular structure has to be tough as it will be the area most hit during collisions (which there will be many) and handling accidents (which are inevitable).
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Bla, bla ... bla, bla, bla!
DavidWho is John Galt?Comment
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Are those bullet shape contouring tools a commercially available item or completely DIY?
In my line of work they're called orifice dilators https://www.coopersurgical.com/Produ...vical-dilators.Last edited by redboat219; 10-03-2017, 06:30 PM.Make it simple, make strong, make it work!Comment
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They're called dapping tools -- used by jeweler's to form cup-shaped imprints in soft metals. Commercially available from any big jewelers supply house.
I use them as fillet forming tools. Usually heated and used to form wax fillets in foundry patterns (old-school).
In this case the fillet running between bow plane structure and bow. Mom was a jeweler -- I took her stuff when she died.
David
Last edited by He Who Shall Not Be Named; 10-03-2017, 07:23 PM.Who is John Galt?Comment
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