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Remorqueur USS Nokomis (YT-142) Classe Woban 1:350 et 1:100 - Modèle 3D


Iceman 29

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I started this project in september 2021.

 

A little help to my friend Alain Nova73 on his project of diorama with a quick drawing of the hull only which will be in waterline mode.

Alain will continue with the superstructure design on Fusion360.

 

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The information is thin as for the original plan of the hull couples, I found a small triptych of the ship in low resolution and some errors, but it helped me to make the different couples, it is far from being perfect especially the back arch which requires a lot of information and... time.

For waterline, it will pass.

A bit of history:

USS Nokomis (YT-142/YTB-142/YTM-142) was a Woban class harbor tug built in Bremerton, Wash, and assigned to Pearl Harbor, Hawaii, in 1940.
 

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The Nokomis was present during the Japanese attack on Pearl Harbor on 7 December 1941. She was the first ship on the scene of the USS Arizona, and was recalled by the officers on deck because of the impending explosion of the battery below deck. She then went off and helped to beach the USS Nevada, along with the Hoga (YT-146), and the YT-153.

 

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The grounding of the Nevada prevented the blockage of the entrance to Pearl Harbor. Then the USS Nokomis fought the fires and dried out the battleship USS California for three days. This effort made the California salvageable, to be recommissioned later in the war. The Nokomis was also the last ship to move the surviving YC-699 barge before the Japanese attack on Pearl Harbor.

The Nokomis accompanying the CV-8 Hornet back to Pearl Harbor after its raid on Tokyo
 

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After the war, the Nokomis continued to serve the Pearl Harbor ships until it was decommissioned in May 1973 and sold for scrap to Crowley in San Francisco. She was renamed Sea Serpent and served for many years in San Francisco Bay as a tug and fireboat.

In 1989, after the Loma Prieta earthquake in the San Francisco Bay area, the Nokomis and the Hoga (which had served the city of Oakland as a fireboat) again fought fires alongside each other.

According to the Historic Tugboat Education and Restoration Society, the Nokomis was purchased in April 1975 by Crowley Maritime Corporation, and its name was changed to Sea Serpent. She operated in San Francisco Bay as a commercial tug to assist ships in docking. Crowley Maritime ceased operations in the San Francisco area in the early 1990s and the Nokomis was renamed Panamanian and abandoned, like many other tugs, to decay and rust.

She was rediscovered in mid-2002 at the Hunters Point mudflats in San Francisco by tugboat captain Melissa Parker[8]. 8] It was purchased at an auction for $50 for the Historic Tugboat Education and Restoration Society (HTERS) and was originally moored at Pier 80 in San Francisco.

The 501 non-profit organization was dedicated to historical research, hands-on engineering education programs for disadvantaged Bay Area youth, and cooperative programs between historic ship organizations in the San Francisco Bay Area and beyond. HTERS acquired an operational sister tug, the USS Wenonah, with the intention of using the Wenonah as a floating class to engage HTERS to help raise funds to restore the Nokomis.
After falling behind on dock rental fees, the two tugs were moved to Treasure Island, but dock rental and insurance fees continued to accumulate, eventually costing the Historic Tugboat Education and Restoration Society both vessels.

Sinking of the Wenonah ( Sister Ship )

 

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While moored at Treasure Island, the Wenonah sank in August 2009 and spilled oil into San Francisco Bay. The Coast Guard asked Global Diving to salvage the vessel to prevent further leaks, and Global Diving approached the American Bridge/Fluor Joint Venture to use the Left Coast Lifter crane to salvage the vessel. The Wenonah was turned over to the Coast Guard for disposal, and Bay Ship & Yacht in Alameda took over the lease of Pier 1 at Treasure Island, which included taking possession of the Wenonah and Nokomis. Both vessels were scrapped in 2010 in Alameda.

The Wenonah was a sister ship to the Hoga. It would have been a great resource of parts to restore her. The Nokomis was the oldest surviving naval vessel from the Pearl Harbor attack.

 

The barge YC-699 in SF Bay and the tug YT-153 on the East Coast, along with the Hoga, are now the last surviving naval vessels from Pearl Harbor.

http://www.runcornmodelboats.co.uk/USS_Hoga.html

 

https://drive.google.com/file/d/0B32-8ZWvIt6USm9hV05adGNzNXM/view?resourcekey=0-2oWytSsFRNuIzFGqjQ2rbA

 

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I still have a lot of work to do.

 

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I have drawn the waterline in relation to the photos, you can see that this tug was ballasted at the back in relation to the horizontal plane of the plan. You will have to keep some in waterline to cut the hull.

 

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Today:

 

Some progress from this project, I hadn't made any progress since early October 21, Alain my friend only needs the hull, but I'm continuing this 1/350 tug to the end, it's quite "simple", I'm making sure it will be printable in 1/100 as well, so very detailed.

 

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I could leave it as is. I like to finish what I've started, and then in the 1:100 it's going to look great. 😎

 

I've been working a lot on the bridge, I've got her "cap" to finish, the chimney and some defects on the hull, since yesterday.

 

I am positioning the anchor to draw its rack, it is launched with a mast along the edge, no hawse here.

 

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I had a Dunn type anchor in stock, common in the Navy, which I had designed for my T2 tanker.

 

Some bridges had 7 ports, others 8, the Nokomis 7.

 

I added rivets. This is apparently how it was mounted.

 

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Correct finish of the bridge cap, it serves as a sunshade and prevents rain drops on the windows.  🤠

 

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A not so easy part to reproduce for a 3D rookie. This bridge looks simple, but it's not.

 

There are some adjustments to be made, but the freehand spirit is there.

 

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I'm still working on the details of the castle and the bridge.

 

Some small objects will not be printable in 1:350, at least not separately from the castle. Overflows or air vents, axes, for example, would be best glued/inserted halfway into the castle wall as is done on injected models.

 

At 1:100 it is largely printable separately.

 

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I made a real fire axe, it was too schematic. I installed the bunker hoses or to transfer compressed air.

 

These tugs could bring bunkers to other ships and also compressed air to restart in case of problems. 

 

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Hoga.

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This type of metal boat seems to match the shape of what was used on these tugs, I'll just modify the shape of the stern and bow to match the picture and shorten it.

 

Thanks to the friend Roland for the plan.

 

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For the typical USN anchor mast, I'll take a cue from Hank's work in starting to model a 1/144 T3 tanker.

 

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Anchor rack. I need to refine.

 

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An example of how to attach a spare anchor here to a bulkhead. Personal selfie photo, much younger than now, 25 years ago, but digital photography already existed.

 

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I've drawn the fire hose racks, now the hose lances need to be drawn, attached to the bulkhead.

 

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Not too advanced today, I'll try to catch up tomorrow.

 

I drew the two ladders to access the bridge deck. Then I got interested in the cargo mast which is strong on this little ship. The shape of the horn is not conical as often, it is a simple straight tube, easy to make at the time. To be modified. 

 

The mast also supports the searchlight for the aft manoeuvre, plus some navigation lights on the plan at least, the white aft running light is fixed to the aft rail as often, you can see it on the picture.

 

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A bit of work on the hull for a change.

 

I took the version of the Hoga at the time for the hull protection tubes, it varied a lot depending on the shipyards and the life of the tug. 

 

New method to make the sheet metal lines, here the welds in positive in this case, but I can also do it in negative for the riveted sheets. I'm quite happy with it because it was complicated before and not too fair by projection... And it takes me 10 times less time for a better result. This has no technical truth of course, I don't have the platting plan of these ships. But it's much better than a smooth hull.

 

I will be able to do the water outlets and intakes.

 

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YT-146 Hoga, probably new.

 

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I like "The Man In Black" on the bridge.

 

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You can see the starboard water outlets on this one.

 

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Today's advances: on the front capstan, which also serves as a windlass, mooring bollards, hatch from the locker to the anchor chains, deck hatch, inscription of the construction number, draught scales.

 

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Drawing test of the bridge deck railing and the fishplate, nothing finished. 

 

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Tks Stuart! 

 

I started the design of the Sperry steering wheel specific to these tugs last night, nothing done today, just mechanical work. 

 

The wheel is not finished yet. A lot of stuff to modify.

 

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I redesigned the steering wheel to be more realistic.

 

Drawing of the rear capstan, the towing bollards, letters of the name.

 

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Another type of capstan not quite the same.

 

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Yes, one at 1:100 for me, and one at 1/350 waterline for a friend, Alain, he have to print several for a diorama. He work also on Fusion360. 

 

A specialist of yard cranes, and yard dioramas.

 

More here http://www.shipmodels.info/mws_forum/viewtopic.php?f=59&t=167725&start=40

 

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More here http://www.shipmodels.info/mws_forum/viewtopic.php?f=59&t=165113&start=80

 

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More here : http://www.shipmodels.info/mws_forum/viewtopic.php?f=59&t=154402&start=80

 

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And recently, a celebrity, the Gusto crane, in 3D resin print. for partial diorama of the Battleship Jean Bart built in Saint Nazaire.  

 

More here: https://www.laroyale-modelisme.net/t27723-grue-gusto-saint-nazaire-scratch-1-350-de-nova73

 

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I reduced the size of some parts on the rear after analysing photos.

 

Drawing of the rear steel grating, which has a lot of holes.

 

Drawing of the hatch of the aft store room where the spare tow lines and hawsers were probably stored. Note that this room is called a "lazarette" in English, a term I did not know. Not very common anymore, perhaps.

 

The hatch is not very well placed on the manoeuvring platform, there is no better way to catch your feet or the trailer/ships. Rollers have been added to avoid this problem.

 


Lazarette

Wikipedia 
 
The lazarette (also spelled lazaret ) of a boat is an area near or behind the cockpit . The word is similar to and probably derived from lazarette . The lazarette is usually a storage locker used for materials or equipment that a sailor or boatswain would use around the decks of a sailing vessel.  

It is usually located below the weather deck at the stern of the vessel and is accessible through a cargo hatch (if accessible from the main deck) or a door (if accessible from the lower decks). The equipment usually stored in a lazarette would be spare lines, sails, sail repairs, line and cable splicing repair equipment, fenders, a mast chair, spare blocks, tools and other equipment.

The name derives from the biblical story of Saint Lazarus, who in Christian belief was raised from the dead by Jesus. 

On old square-rigged sailing ships, it was located at the stern of the ship. The original purpose was to store the bodies of passengers or important crew members who had died during the voyage. 


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Today's progress. 

 

I redrew the front bulwark at the bow because it was not in accordance with reality. The photos help a lot. It's right now.

 

Added the windlass/cabstan controls forward and aft, the two skylights, the aft one opens into the galley. 

 

I have drawn the 6 fairleads and the aft bulwark ports (water drainage on deck)

 

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