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Author Topic: ModelsbyDesign Shannon  (Read 53877 times)

Taranis

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Re: ModelsbyDesign Shannon
« Reply #425 on: November 24, 2019, 06:44:25 PM »

I meant to say that I try hard to make all parts removable. This allows fitting after cabin paintwork.


This assembly is purely located by the tight fitting grab rail


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ANDY
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derekwarner

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Re: ModelsbyDesign Shannon
« Reply #426 on: November 24, 2019, 08:11:29 PM »

That self draining safety gate looks superb Andy.  O0 ......in the last image below, is it a metal  finished paint to represent stainless steel construction?

The locking/unlocking working function also  :-))

Without having seen a video of this Class of vessel, I assume a few hundred kilograms of
heavy sea wave water could crash over/into with that space & so needs a speedy self draining function?

Derek
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Derek Warner

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Taranis

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Re: ModelsbyDesign Shannon
« Reply #427 on: November 24, 2019, 08:16:13 PM »

Thanks Derek
The paint is Tamiya bare metal silver. I don't think any of the grab rails etc are stainless steel. Some say anodised steel but I'm not aware that steel can be anodised so I errr on it being aluminium
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ANDY
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Canterbury Coxswain

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Re: ModelsbyDesign Shannon
« Reply #428 on: November 24, 2019, 08:53:20 PM »

Derek and Andy,
They are all anodised aluminium [duralumin] rails throughout. Hence most [not the black] will require minimal maintenance.
I believe steel would be galvanised.
Kim
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derekwarner

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Re: ModelsbyDesign Shannon
« Reply #429 on: November 24, 2019, 08:57:42 PM »

Andy....I would think that 'anodized steel' is an error in understanding metals and not a misprint   %) 


......any form of electrolytic process to hard drawn aluminium tubing would look very flash O0 [for a few weeks] after that no one in their correct state of mind would try & support their life by holding it after those same few weeks of sea mist :embarrassed:


Stainless Steel Grade 316 [1.4571 is the closest Continental designation] tubing is easily bent......however requires stainless TIG welding in full size, or silver soldering in scale applications of the material to mounting flanges etc


Derek
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Derek Warner

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Taranis

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Re: ModelsbyDesign Shannon
« Reply #430 on: November 24, 2019, 08:59:41 PM »

Derek and Andy,
They are all anodised aluminium [duralumin] rails throughout. Hence most [not the black] will require minimal maintenance.
I believe steel would be galvanised.
Kim
My thinking exactly  :-))  thanks Kim
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ANDY
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derekwarner

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Re: ModelsbyDesign Shannon
« Reply #431 on: November 24, 2019, 09:05:11 PM »

Morning Kim......thanks & I understand OK if the rails are anodized Duralumin ........this chemical varient has totally different electrochemical resistance properties & hence corrosion resistance [over 99.9% aluminium]

Courtesy of a Chemical Table under Google

'In addition to aluminium, the main materials in duralumin are copper, manganese and magnesium. For instance, Duraluminium 2024 consists of 91-95% aluminium, 3.8-4.9% copper, 0.3-0.9% manganese, 1.2-1.8% magnesium, <0.5% iron, <0.5% silicon, <.0.25% zinc, <0.15% titanium, <0.10% chromium and no more than 0.15% of other elements together'

Really like chalk & cheese between the two metals...a simple test to check if the metal is aluminium or duralumin is to wipe a strong magnet over the metal......if it's duralumin you sure will feel the magnetic attraction to the manganese + iron [total ~~1.25%] in the metal


Never buy Duralumin from a second hand scrap dealer........ <*<


High strength heat treated Duralumin tubing is also used in Hang Glider tubular frames..........being of such critical importance, the tubing is sold from the Merchants with a Certificate of Tractability back to the individual heat when the metal was brewed ......genuine Duralumin tubing has the Certificate Material  Grade & Heat Number micro Laser printed on the continuous length of the tube ........such is the importance of human life  O0

Derek
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me3

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Re: ModelsbyDesign Shannon
« Reply #432 on: November 24, 2019, 10:20:40 PM »

I believe it's just bare sand blasted aluminium. It certainly is on refit boats. On the refit boats we take the painted parts and blast the paint off them. It leaves a rough surface but then we do have different grades of blasting depending on the item. 
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Canterbury Coxswain

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Re: ModelsbyDesign Shannon
« Reply #433 on: November 24, 2019, 11:23:35 PM »

I can only go on what I have been told by by both engineers at the RNLI lifeboat stations that have Shannons and also by those at the AWL Centre at Poole when I have asked the question - it's always been 'anodised aluminium' and on one occasion 'duralumin'. I have asked this, as being an RNLI Educational Trainer for the South East [official staff - voluntary] I get asked this question frequently, by enthusiasts and modellers alike. This is especially when I give my illustrated talk on 'The launch and recovery of the Shannon Class lifeboat' - based on the Dungeness boat - up and down the country. My next one will be given in Eastbourne in March. Well before then, I will get the definitive answer from the 'top man' at the AWL Centre, Poole. It will posted here then.
Cheers to each.
Kim
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Re: ModelsbyDesign Shannon
« Reply #434 on: November 25, 2019, 07:12:52 AM »

Hi Kim, interesting, I work at the alc in Poole on the Severn, Trent and Tamar refit lines. I will ask or look at a drawing when I'm back later in the week. Whilst I can't be 100% on the Shannon the refit boats are definitely bare ally!
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Taranis

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Re: ModelsbyDesign Shannon
« Reply #435 on: November 25, 2019, 07:06:56 PM »

Another good day













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ANDY
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Re: ModelsbyDesign Shannon
« Reply #436 on: November 25, 2019, 07:57:49 PM »

Excellent work, Andy! The mast mechanism is a source of inspiration :-)) And the gate insert is the icing on the cake!
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Taranis

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Re: ModelsbyDesign Shannon
« Reply #437 on: November 26, 2019, 05:18:18 PM »

Thank you Arno


I have an ear infection so not very focused on production today.
So some pictures under the influence of Ibuprofen





102 bolts









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ANDY
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Taranis

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Re: ModelsbyDesign Shannon
« Reply #438 on: November 26, 2019, 08:47:19 PM »








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Martin [Admin]

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Re: ModelsbyDesign Shannon
« Reply #439 on: November 27, 2019, 06:11:34 PM »


Hi Andy,

Oops, I broke something.... can you repost please?
( Best put the video in a separate post... )  :D
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Taranis

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Re: ModelsbyDesign Shannon
« Reply #440 on: November 27, 2019, 06:18:42 PM »

Whole post has gone  {-)  That's a memory tester  :-))


The video
<iframe frameborder="0" scrolling="no" width="1080" height="1920" src="https://api.smugmug.com/services/embed/8997744874_vfLDvbw?width=1080&height=1920&albumId=195202017&albumKey=k3nMnf"></iframe>
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ANDY
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Taranis

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Re: ModelsbyDesign Shannon
« Reply #441 on: November 27, 2019, 06:32:03 PM »

I had a rest from brass today and had a go at the gas struts. This is a working prototype that needs a little elaboration/embelishment yet.


I've placed another order for a Scarborough decal set with David Leftley Graphics 56 FYI




Now catching up on Portside





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ANDY
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Taranis

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Re: ModelsbyDesign Shannon
« Reply #442 on: November 28, 2019, 06:43:41 PM »


















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ANDY
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Taranis

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Re: ModelsbyDesign Shannon
« Reply #443 on: November 28, 2019, 10:18:50 PM »

Tamiya spray Silver Leaf is durable and won't tarnish


I'm with Arno
Someone made a fair effort with the supplied grille but I think we can up the game















Bolts and paint to finish
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ANDY
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Taranis

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Re: ModelsbyDesign Shannon
« Reply #444 on: November 30, 2019, 09:11:52 AM »

Good morning  :-)


Working from Kim's excellent photo collection I set about creating the port side gas strut lower mounting.
This took two attempts but I think its ok now.


First one stood off the side wall too far once in place



This one is spot on



Later vessels use this reinforcement plate to bolt through






 
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ANDY
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Taranis

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Re: ModelsbyDesign Shannon
« Reply #445 on: November 30, 2019, 04:18:31 PM »

I apply all tactics to secure parts in the correct position for each solder. It gets easier once the first connection is made.






























Cleaned up



Primered



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ANDY
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Taranis

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Re: ModelsbyDesign Shannon
« Reply #446 on: November 30, 2019, 05:10:24 PM »












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ANDY
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Mark T

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Re: ModelsbyDesign Shannon
« Reply #447 on: November 30, 2019, 05:38:36 PM »

Quality work - its starting to look extremely detailed now  :-))
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Taranis

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Re: ModelsbyDesign Shannon
« Reply #448 on: November 30, 2019, 05:55:23 PM »

Quality work - its starting to look extremely detailed now  :-))


Thank you Mark it's amazing how busy it looks and lots to add yet. At my current rate of progress I might have both Shannons ready for paint come spring. I'm very pleased that I have surprised myself in at least matching the detail of the other model if not in some instances bettering.


However that said I am not rushing


That gate etching makes such a huge difference  :-))
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ANDY
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Taranis

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Re: ModelsbyDesign Shannon
« Reply #449 on: November 30, 2019, 06:08:19 PM »

My buddy in Ireland has recommended this to us on Shannon Facebook today. I think I'm going to invest in it for my upcoming birthday. Thank you Steve :-))


https://www.ebay.co.uk/itm/Soldering-Station-Yihua-992DA-Digital-Welding-Solder-Desoldering-Air-Warm-/273888739134?hash=item3fc50a7f3e


https://notenoughtech.com/review/yihua-992da-reveiw/




https://youtu.be/SnEZnt9yNcA
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