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Author Topic: HMS Coventry build  (Read 116321 times)

radiojoe

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Re: HMS Coventry build
« Reply #225 on: January 25, 2015, 11:03:15 AM »

With the basic superstructure done I thought it was time to do a second waterline test, she sat just above her waterline, level and no list, and with no trimming ballast needed at this time, with no significant weight to be added an inclination test by pulling the top of the mast sideways proved satisfactory and it quickly resumed it's upright position, so the two lead "sonar pods" slung under her keel seem to have the desired effect, I may even raise the waterline slightly as she has plenty of freeboard even at the stern. and a little more ballast in the bilges may be beneficial.
Also been experimenting with the moulding a bit and adapted my original life raft canister that had a moulded in base, to now have a separate base giving me a few more options for positioning them.
Joe.
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longshanks

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Re: HMS Coventry build
« Reply #226 on: January 25, 2015, 04:51:42 PM »

Sweet  :-))
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ballastanksian

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Re: HMS Coventry build
« Reply #227 on: January 25, 2015, 05:22:17 PM »

Lovely work yet again Joe. She really is beginning to look ready for her paint.
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radiojoe

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Re: HMS Coventry build
« Reply #228 on: January 26, 2015, 05:40:50 PM »

I think it will be some weeks till I can do any painting, I spray paint in the garage and it's too cold and damp, so I'm continuing to add bits of detail that I consider ok to be spray painted in place, larger bits like deck gun / missile launcher etc. I'll paint separately, I'm enjoying this build so much I'm building slower than I sometimes do.  %%
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ballastanksian

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Re: HMS Coventry build
« Reply #229 on: January 26, 2015, 08:28:33 PM »

It shows you are having fun Joe. You cannot make a good 12year old malt in five years. (I prefer Gin, but you know what I mean:O)

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radiojoe

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Re: HMS Coventry build
« Reply #230 on: January 29, 2015, 05:31:41 PM »

There are a few side mounted aerial bases on the boat so as with similar fittings I make one and cast the rest, mixing very small quantities of resin for say an aerial base is quite difficult so I mix still a small amount and have several moulds of various items ready for any surplus resin, this has enabled me to build up quite a collection of fittings that are useful for future models, I'm sure some of you that do moulding are saying so what's new, but my remarks are aimed at new modellers who are just getting into our fascinating hobby  O0
in the mean time I'm still adding detail to Coventry  :-))
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Paul Swainson

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Re: HMS Coventry build
« Reply #231 on: January 29, 2015, 06:18:14 PM »

Nice work Joe, she is looking really great, I am sure you are finding the satisfaction in the scratch build as I am in mine.  You are also getting a dab hand at the moulds.  You should set up a small cottage industry to cover some of your cost in the build.  I am sure there are others out there who may find this an advantage.  Watching with great interested.  Will need a contact for supply of the 1.5 ply you are using can not find anyone here.  Paul  :-))
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radiojoe

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Re: HMS Coventry build
« Reply #232 on: January 29, 2015, 07:17:49 PM »

Thanks Paul, I get my ply at my local model shop, http://www.mainlyplanesntrains.com/ as the name suggests they don't stock much for us boat builders but the stock of building materials has got a lot better over the last year, plywood, metal sections, plastic sections etc. The ply I've had from there has been excellent quality, but not cheap, at 2.99 square foot the largest they do being 1 foot by 4 foot add on postage etc. but worth checking out, or try www.cornwallmodelboats.co.uk they stock birch ply of good quality their largest being 900 mm by 300 mm. Hope this helps.  :-))
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mikearace

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Re: HMS Coventry build
« Reply #233 on: January 29, 2015, 07:36:17 PM »

Coming along superbly Joe. Brilliant job.
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longshanks

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Re: HMS Coventry build
« Reply #234 on: January 29, 2015, 07:45:17 PM »

Neat work Joe, keep the tips for moulding coming. This is an area I need to get into . . . .

 :-))

longshanks
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ballastanksian

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Re: HMS Coventry build
« Reply #235 on: January 29, 2015, 08:29:35 PM »

Crikey, that is a stash of castings! That will save you hours of work in the future Joe:)
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spooksgone

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Re: HMS Coventry build
« Reply #236 on: January 30, 2015, 02:34:32 PM »

Hi all. I'm with longshanks. Would love too see a master class on how to make our own moulds. I have been thinking about buying the casting pack from Sylmaster, as advertised in Model Boats mag, but not much point if I don't know what I am doing with it  :(( Loving the build Joe. Thanks.
Phil
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radiojoe

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Re: HMS Coventry build
« Reply #237 on: January 31, 2015, 03:29:53 PM »

I've been doing moulding for around a year now but I'm certainly no master at it, and I'd recommend having a go at it, it's a fascinating and rewarding extention to our hobby, and actually not that difficult especially with basic items like w/t doors, ammunition boxes, vents etc. that you tend to need multiples of on a model, you can put all your effort in to making one really good prototype take a mould of it and you have an endless supple, and once you get into it you can experiment with other fittings,  not sure whether it's cost effective or not but the resin goes a long way and given the cost of commercial fittings I'm guessing it probably is, but that's not why I do it, I get a lot of enjoyment out of scratch building boats and seeing my own fittings on them just adds that bit extra. :-))
pics of my first moulds, WW2 type w/t door , louvre type vent panel, various ammo boxes, and my latest casting a side mounted aerial base in place.
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ballastanksian

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Re: HMS Coventry build
« Reply #238 on: January 31, 2015, 03:46:46 PM »

What ever you do do not buy your silicone rubber from Hobbycraft because the 250ml tin costs five times what a kilo tin costs from Alec Tiranti or other companies who specialise in mould making materials. 

You might find that this is too much material especially if, after trying to mould and cast, it isn't an activity for you, but you can sell it on to a fellow boater or friend who wants to try it out.

The shelf life isn't infinite, but my gallon tin is still going strong after four years. Just don't lose the tin/bottle of catylist:O)

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Re: HMS Coventry build
« Reply #239 on: January 31, 2015, 03:56:32 PM »

Good advice Ian
Ned
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radiojoe

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Re: HMS Coventry build
« Reply #240 on: January 31, 2015, 05:10:12 PM »

Yes with shelf life in mind I buy the smallest amount available from www.easycomposites.co.uk they do the condensation cure silicon in half kilo, I'm on my second pack, and a kilo of part A and B of fast cast resin, I'm still on my first lot that I've had about a year and is still good,  the cost is about 38 pounds total but it dose go a long way.
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ballastanksian

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Re: HMS Coventry build
« Reply #241 on: January 31, 2015, 09:14:55 PM »

Ironically, Hobbycraft's PVA (Red bottle) is excellent and quite good value. It beats many non water proof PVAs out there and I have used it for many projects throughout the last five years. While of little use on models that can get damp, for static models it will be of great use.

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Paul Swainson

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Re: HMS Coventry build
« Reply #242 on: February 03, 2015, 02:24:00 PM »

Thanks Paul, I get my ply at my local model shop, http://www.mainlyplanesntrains.com/ as the name suggests they don't stock much for us boat builders but the stock of building materials has got a lot better over the last year, plywood, metal sections, plastic sections etc. The ply I've had from there has been excellent quality, but not cheap, at 2.99 square foot the largest they do being 1 foot by 4 foot add on postage etc. but worth checking out, or try www.cornwallmodelboats.co.uk they stock birch ply of good quality their largest being 900 mm by 300 mm. Hope this helps.  :-))


Hi Joe, is it just Birch Ply, or Marine Birch Ply?


Paul.
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radiojoe

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Re: HMS Coventry build
« Reply #243 on: February 03, 2015, 02:46:08 PM »

Hi Paul,
The ply I get from my local model shop is marine ply, the ply at cornwallmodelboats is not specified, just listed as Birch ply so can't say for sure but as it is from a model boat materials supplier I would imagine it would be.
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radiojoe

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Re: HMS Coventry build
« Reply #244 on: February 03, 2015, 03:15:48 PM »

Reposting this it was lost when the shilling ran out  {-)
did some more detailing to the aft end of the main superstructure and the sides of the funnel base, should look better and blend in after painting without all the different material colours. %%
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ballastanksian

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Re: HMS Coventry build
« Reply #245 on: February 03, 2015, 07:06:59 PM »

Lovely work as usual Joe.
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longshanks

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Re: HMS Coventry build
« Reply #246 on: February 03, 2015, 11:04:20 PM »

Tidy, very tidy  :-))
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spooksgone

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Re: HMS Coventry build
« Reply #247 on: February 04, 2015, 08:38:06 AM »

What's a shilling? is it part of your computer that uploads the pictures?
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radiojoe

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Re: HMS Coventry build
« Reply #248 on: February 04, 2015, 09:49:30 AM »

Go on rub it in, just cos I remember shillings  %%  {-)
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radiojoe

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Re: HMS Coventry build
« Reply #249 on: February 07, 2015, 02:10:06 PM »

I like this part of the build, just pottering around adding bits of detail after studying the photos, some items you can only see a part of, so I use a bit of intuition and do what looks right to me, the hand rails are just .5mm styrene rod, at 1:96 I tend to have them rather understated and just an indication of a handrail, also did the RAS hose stowage and bits on the air cleaner deck, the hoses will be made permanent later.
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