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06-30-2006, 09:25 AM
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single/double planking
I am building my first kit. The plans call for single planking the hull, yet i see a lot of models on this site double planked. What are the reasons for double compared to single. Is one better than the other?
Thanks 
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06-30-2006, 04:52 PM
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Re: single/double planking
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I'm definitely with you that one Jerry! I know the second planking helped me a lot because I had LOTS of mistakes to cover up on my first build! LOL If it wasn't for the second layer of planking my model would have more closely resembled a shipwreck!!!
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06-30-2006, 08:02 PM
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Re: single/double planking
Briefly, if you put one layer of planks on frames, you follow the real-life construction techniques, (providing the frames are as in the real ship) and if two, you accept the usual kit manufacturers´ practice, where the first planking forms only a base for the actual planking.
Plank-on-bulkhead kits often contain two layers of planks. I´d say they are needed here because the bulkheads, call them frames if you like, are usually placed so far apart that it is difficult to get a smooth hull without some kind of support. The second layer also nicely hides the mistakes you may have done before the finish planking. Is one better than the other? Well, that depends.. |
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07-01-2006, 01:41 AM
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Re: single/double planking
Double planking?
Two chances to practice "Getting it right!!" I must admit, although it may seem tedious, it is enjoyable to do it twice.... (As the actress said to the bishop....) Cheers....HOF.
------------Members' Signature------------
"There are never any problems.... The only problems there are, are ones we create for ourselves...." (HOF Circa. 1988 )
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07-01-2006, 07:56 PM
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Re: single/double planking
Hi falconsfan55,
I notice that it is the Bluenose by Model Shipways that you are referring to. As far as I see it, a very good choice, and you would get a lot of helpful advice if you were to join the Shared Projects topic, Calling all Bluenosers. Part of the reason this kit calls for single planking, is because Model Shipways is more geared towards the advance ship-modeler, and the more correct methods of shipbuilding. But, that doesn't mean that beginners can't build them. For one, the wood supplied is not hard to work with, and the plans are usually first rate, this is my opinion. In the past, all the ship-models that I built were double-planked, which was nice for covering up the mistakes that I made on the first layer. The ship that I'm now currently working on, is also from Model Shipways. It really worried me when I found out it was only single-planked, but now that I've made it through it, it has become my preferred method. Both methods look equally nice when completed, it's just a matter of finding out which one you like the best, couldn't really say whether one is better than the other. The one thing nice about double-planking is that the nice wood used for the second layer, can be better stained or varnished, where as the single-layer works fine for painting and copper-plating. Regards, Gerald 
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07-01-2006, 09:39 PM
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Re: single/double planking
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Hi all With kits that use bulkhead and double planking, the first layer give you clean lines, the secound greater strength. When using frames, the frames give the hull clean lines and the planks give the hull strenght. Even today a lot of wooden boat/ships use both methods. The last boat I built was 65ft long and requied frame 4ft apart, and 3 layers. total thinkness 4". Andrew Retired Master Shipwright. |
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07-01-2006, 10:10 PM
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Re: single/double planking
I need to echo and agree with what the others have said. The 2nd layer is good for covering any mistakes made with the first. Another point is that ships planking seldom if ever reached more then 24' so scale planks would be less then 6 inches long in 1:48 scale. It's tuff to get the planks to fit correctly on a plank on Bulkhead (POB). The bulkheads are normally not spaced correctly. Using scale planks with POB makes it difficult for you to get the correct plank support and the correct repeat pattern because again there is no support. If you want to use scale planks and the correct plank repeats you only have a few options. 1. Double plank. this allows the 1st layer of planking to support the 2nd so you don't have to worry about where the bulkheads are. 2. Use fillers between the bulkheads so you have something to support the 1st and only planking. 3. add bulkheads to provide the support. Myself, I find double planking relaxing. It allows me to spend more time working on my ship.
Mike |
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07-01-2006, 11:35 PM
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Re: single/double planking
I prefer single layer planking, that way I can get it done and go on to the next step.
Ron W.
------------Members' Signature------------
Ron W.
GSLSM&RS NRG SNR |
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07-02-2006, 12:56 AM
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Re: single/double planking
I will double plank the MS Bluenose I am working on (progress delayed by the World Cup). Mike's posting bring out an important point about the length of the planks. This was mentioned in the instruction manual of the kit which says something to the effect that because of the spacing of the frames, the planks will not be of the correct scale length and it is not possible to have the correct joint pattern. Although it was not mentioned in the instruction, I suspect that similar problem will occur with the deck planking because the kit was not designed with a false deck.
We are model makers, not shipbuilders. Our aim is to create a model within our skill which has as near as possible the same outward appearance as the real object. To achieve this end, to follow the practice of building the full scale ship might not yield the best result. Last Chirstmas my son bought me the Charles Morgan, also by MS. I have a good look at it and was surprised to see that material for the second planking is an optional extra. This kit is billed as an advanced model. If MS is aware of the problem with Bluenose, which is rated intermediate, surely people building at advanced level will not be happy with the incorrect plank length and will do something about it; which is to pay for the optional extra. The conclusion I came to is that the single layer planking with some MS kits is to minimise cost, nothing to do with 'technique as in real ship building'. Another point about technique used in real ship building is how to spill a strake. The technique mentioned in the Bluenose instruction is to use a pair of campass to lift the shape of the plank to be spilled following the porfile of the strake adjacent to it. This might be the way in real ship building, but for model making, I think it is very much easier and more accurate to stick a piece of masking tape along the stake which one want to lift the shape then rub pencil over the edge of the strake to get the correct curve. Just some thoughts on my mind best regards Apprentice
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07-02-2006, 08:39 PM
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Re: single/double planking
Jerry, if you had enough wood under your planks, you wouldn´t have to worry about their length.. : )
Double planking is not a bad idea because it only hides the mistakes of the builder but first of all the basic fault of the kit manufacturer, namely the limited number of frames. The term "double planking" is actually pretty vague - in my vocabulary it means that there are planks on both sides of the frame.. |
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