The Ship Model Forum

Thanks for the interest David. I think the air hose might be around 2". What I found that looks like will work to make a decent coil is stretched sprue which can be coiled and dabbed with a little liquid plastic cement but remains somewhat flexible. I variously tried wire, thread etc, but the sprue seems to be the best bet so far.

Another item I found in photos, but don't have good working information is a bumper arrangement which can swing outboard from the vertical supports for the upper boats, which keeps a boat hung outboard from the davits from crashing into the lower boat in the stack.

These ships are loaded with equipment covering every square foot. Just look at some of the photos, I keep finding padeyes and sheaves to add and other bits and pieces.

Cheers: Tom

My dinky 5 hp compressor has a nominal 1" OD dia. hose. I worked on the Alaska Pipeline (long time ago) as an operating engineer and we had lots of industrial size air compressors with large hoses. I'll re screen the movie Away All Boats and look, the hose is pretty well featured in a damage control episode.

Whether or not I can control the sprue between 1" and 2" remains to be seen.

Cheers: Tom

I miked the sprue and it comes out to a scale .9" for hose.

Tom,

You posted;
Another item I found in photos, but don't have good working information is a bumper arrangement which can swing outboard from the vertical supports for the upper boats, which keeps a boat hung outboard from the davits from crashing into the lower boat in the stack.

The lower mounted boats should be protected from the "swing" of of the upper boats by, one, the framing/bracing built around the lower boat.
These davits also sucked the boat up tight and once they were over the rail they were lowered pretty quickly. I imagine there were some
deckhands with boathooks handy also. Timing was critical to unloading so I'm sure these boats didnt stay on the rail long.

If you had a drawing of the davit you could probably figure out the max travel of the support arms. That would give you an idea of how
far outboard a boat could be lowered to the end stops.

Paul

Raggs:

Somewhere I had a photo of these which has currently disappeared. It's a pipe frame with a bumper, about 2' long at the end, which would only be useful if it swings outboard. If I can find the photo I'll post it.

Cheers: Tom

Here' is the bumpers to which i refer, looks as if they may swing to to position the bumper?

More information still comes in. Sometimes it shows something was wrong. In this case the small exhaust fans I was just completing are wrong. Arrrrg since I rather liked them. So working on another pair. A step backwards, but then I'm not rigging.

As to the air hoses, I'll go with a nominal 1" hose as it looks more like the hose coiled on the compressor side.

From all the close-up photos, geeze I'm finding hundreds of padeyes, sheaves and cleats to add. Anything to avoid rigging!

Cheers: Tom

The boat cradles for the upper boats win the Whelan Davit stack. There are four sets of these.



The boat cradles swing out of the way from the inboard supports to allow removal of the lower boat.

The pesky little vent Fans which sit just aft of and outboard of #3 hatch. This was the third evolution of these.



Cheers: Tom

Old and new ventilation fan units. The older ones, inboard, I rather liked but the new ones are much more correct.




Compressor in primer with coiled 1" hose

Tom,
Yep, I think you've got them (fans) this time!! Very nice work. The A/C compressor, also. Very convincing.

Hank

_________________
HMS III
Mocksville, NC
BB62 vet 68-69

Builder's yard:
USS STODDARD (DD-566) 66-68 1:144, Various Lg Scale FC Directors
Finished:
USS NEW JERSEY (BB-62) 67-69 1:200
USN Sloop/Ship PEACOCK (1813) 1:48
ROYAL CAROLINE (1748) 1:47
AVS (1768) 1:48

Some of this small stuff takes a long time, but the point is not currently to be finished but to keep finding stuff to add. There is a lot of small detail that is essential to produce a model of a ship that would actually have everything needed to do it's job. I get excited finding cleats to add....

Looks like my router has died. Eyepad not as useful as the computer!

Cheers: Tom

Router issue turned out to be a failure of the 12V power cube. Just happen to have another in the office so an easily solved issue. Today made and added perhaps another dozen cleats and can find good employment for at least another dozen. I punch two snake bite holes in thin plastic sheet with a sharp awl, bend two pieces of fine copper wire and insert, add CA, trim the lateral dimensions of the plastic, cut as flush as possible on the bottom and grind smooth. Paint and voila, a cleat. Tiny little buggers!

Been adding cleats and padeyes all over the place, this working ship had a lot of tackle! Current perusal of photos indicate the paravane cranes were completely different than what was suggested on the BOGP etc. However haven't been able to piece together an accurate enough of an idea of their exact construction to draw them out as yet.

Beginning to rig the forward king posts, more preventers to make with block and tackle.

Harrumph! I have found tantalizing teases of what the Paravane Cranes look like and how they probably operate. But what does she really look like without the jacket and long flowing skirt, standing behind that truck? Looks to be a tripod from which rotates a two piece boom making a triangle with the tripod and doing able to swing through a 180 degree arc. Hoisting power comes from the nearby cargo winch ( in this case wench?). Oh for high rez photos!

About paravane masts, I found this for T2 Tanker, maybe the same ones. A cable keeps the mast on the opposite side to the deck plating.

_________________
Pascal

•Battleship Bretagne 3D: https://vu.fr/FvCY
•SS Delphine 3D: https://vu.fr/NeuO
•SS Nomadic 3D: https://vu.fr/tAyL
•USS Nokomis 3D: https://vu.fr/kntC
•USS Pamanset 3D: https://vu.fr/jXGQ

Your roller chocks came out well! There are a lot of small bits and pieces that 3 D printing works very well for, especially repetitive items. The paravane cranes look something like that but of course paravanes are much heavier than the oil hoses. Strangely they do not use a cable to control the angle of the boom but use a solid pipe so they have a fixed angle. They appear to (I might be wrong) have two braces to the deck making triangles set at 90 degrees to each other. Postwar the cranes appear to have been removed and a different setup is used though paravanes were still carried.

My project attempts to not use any PE or other commercial parts and build everything in the old fashioned way. In many cases the use of 3D, PE or commercial parts would save time, energy and challenge, produce a better result, but every part becomes a learning experience. I rather like the 1:120 scale, being as there are virtually no parts available but not the foot and inch crowd it is in many ways convenient, I directly read part dimensions with a digital caliper since 1"=10'.

Thank you for the information! I suspect that my cranes are quite similar with some adaptations to a different purpose.

Keep up the good work! Cheers: Tom

I think the paravans are not necessarily very heavy, it's a canister, some are slightly heavier because of their 80 pounds explosive load (36 kg), an option. It's their fin and their speed that makes them sink.

_________________
Pascal

•Battleship Bretagne 3D: https://vu.fr/FvCY
•SS Delphine 3D: https://vu.fr/NeuO
•SS Nomadic 3D: https://vu.fr/tAyL
•USS Nokomis 3D: https://vu.fr/kntC
•USS Pamanset 3D: https://vu.fr/jXGQ

_________________
Pascal

•Battleship Bretagne 3D: https://vu.fr/FvCY
•SS Delphine 3D: https://vu.fr/NeuO
•SS Nomadic 3D: https://vu.fr/tAyL
•USS Nokomis 3D: https://vu.fr/kntC
•USS Pamanset 3D: https://vu.fr/jXGQ

I forgot about the early anti sub various WWI techniques of "trolling" for submarines, which at the time couldn't submerge very deeply. Even in WWII the Japanese attempted to use grappling hooks to snag subs which might be lying "doggo" on the bottom.

Armed paravanes was a WWI RN idea which possibly persisted into WWII. It is not known if a single submarine was ever sunk by this method. However the USN employment of paravanes was to snag and cut mine cables such that they would bob to the surface and could be destroyed by gunfire. The Book of General Plans that I have referenced for the Haskell Class APA's show the small davit type cranes on the "boat deck" but I haven't found them in photos. My ship does currently have these small cranes for which I am researching possible replacement.

Tom