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Author Topic: build material for a warship  (Read 8634 times)

iamkyleme

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build material for a warship
« on: June 25, 2015, 03:10:40 pm »

i need help choosing a build material for an rc warship , i have a card board mock up that i would like to add to I.E something like paper mache or fiberglass , are here any other materials i could/ should use instead?

also please excuse if this is in wrong place , this is my first time on the site :)
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tweety777

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Re: build material for a warship
« Reply #1 on: June 25, 2015, 04:09:36 pm »

Personally I prefer using wood as base and adding fibreglass, that way you'll have a strong base inside the hull to keep it straight and undamaged.
If the model is really small (under say 60cm in length) you might get away with impregnated card board with fibreglass around it.
Should you really want to use the card board for the hull you can also add foam in between the frames, then apply some tape and then fibreglass.
When the fibreglass has cured you can remove the foam and the card board and you'll have a nice empty hull.

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iamkyleme

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Re: build material for a warship
« Reply #2 on: June 25, 2015, 04:15:22 pm »

well the card board is just a mock up, im just looking for a material i can just sorta slap on and make a shell. like fiber glass so i can calculate my options...


also i take it card board dont hold up to fiber glassing then, so would builders grade expanding foam be good enough to hold it up from the inside?
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TailUK

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Re: build material for a warship
« Reply #3 on: June 25, 2015, 04:19:57 pm »

A popular technique from "back in the day" was to use brown gummed paper strips.  You can still get it from stationary shop (shops that sell stationary! not moving shops that have halted! :D)  You wet it and paste it over the hull then you could probably give it a coat of GRP resin or model aeroplane Dope and varnish to waterproof it.  Apparently it's pretty strong construction method.  personally I'd go with a covering of glass fibre matting and resin.
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TailUK

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Re: build material for a warship
« Reply #4 on: June 25, 2015, 04:21:24 pm »

well the card board is just a mock up, im just looking for a material i can just sorta slap on and make a shell. like fiber glass so i can calculate my options...


also i take it card board dont hold up to fiber glassing then, so would builders grade expanding foam be good enough to hold it up from the inside?

Once you've coated you're cardboard hull you could give it good waxing and make a GRP mould from it.  Then making a GRP hull is easy!
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iamkyleme

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Re: build material for a warship
« Reply #5 on: June 25, 2015, 04:29:54 pm »

the plan i have at the moment is to get my cardboard hull ,fill it with foam and coat it in closure plate tape (ducttape that doesnt burn), then purchase a fibreglass kit and coat it, then once dry pull cardboard and tape structure out and be left with fibreglass hull...


does that sound like it would work and what not... as you can tell never build an rc boat hull before
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TailUK

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Re: build material for a warship
« Reply #6 on: June 25, 2015, 05:09:44 pm »

Have a look at this!   http://modelsteam.myfreeforum.org/archive/o_t__t_30929__start_0__index.html  The guy used styro foam to build the hull then coated it with epoxy resin and mat.  As long as you don't use any foam that would be attacked by polyester resin you'll be alright.  Wall foam is Urethane based so would be ok.  I'm told that if you give the cavity a light mist with water from a spray bottle, the foam works a lot better and you don't need to use as much.
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iamkyleme

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Re: build material for a warship
« Reply #7 on: June 25, 2015, 06:34:58 pm »

actually i got a new plan , due to limitations of materials and tools (and impatience) im going to make the hull from some thin wood i have


thanks for all the help and replies though :}
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Arrow5

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Re: build material for a warship
« Reply #8 on: June 25, 2015, 08:17:15 pm »

Now you have decided, don't be tempted to use expanding builder`s  foam. It can expand in an uncontrollable way and burst your hull.   I use blue foam sheets from Sheffield Insulations, see phonebook for your local depot.  It can be cut and sanded very easily, cover with brown wrapping paper soaked in waterproof wood glue, then paint or glass. A solid unsinkable hull, just cut out areas for radio, motor, batteries etc.   Works for me %)   Don't forget the photos O0
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Navy2000

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Re: build material for a warship
« Reply #9 on: June 25, 2015, 10:07:23 pm »

Which ship class or hull are you building?


Duane
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iamkyleme

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Re: build material for a warship
« Reply #10 on: June 25, 2015, 10:13:04 pm »

duane , im hoping to try do a bismarck , but am probably going to just go my own way with the design


so far my new plan will probably make a more new york class than bismarck.http://i49.photobucket.com/albums/f252/CanisD/Misc/MyStarshipFiles/NeverWeres/Texas_5in.jpg


i will also try to mount gas powered guns on it :P




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Navy2000

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Re: build material for a warship
« Reply #11 on: June 25, 2015, 10:16:47 pm »

Scale Shipyard does make a Bismark in 1/100 scale.


Duane
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iamkyleme

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Re: build material for a warship
« Reply #12 on: June 25, 2015, 10:26:15 pm »

if i wanted to buy one id be on amazon not here lol


im more interested in building it than i am actually having a 100% accurate model


for example i have dabbled in matchstick boat making before


https://instagram.com/p/pY6mcZn6GF/?taken-by=kytech_studios


and generally im always making stuff as i find it fun :)
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Arrow5

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Re: build material for a warship
« Reply #13 on: June 25, 2015, 10:49:32 pm »

Gas powered guns ? Where are you ?    Check the legality where you live.
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iamkyleme

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Re: build material for a warship
« Reply #14 on: June 25, 2015, 11:10:58 pm »

arrow 5 im from england and by gas guns i mean slightly more than airsoft , not anything to powerful
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CyberBOB

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Re: build material for a warship
« Reply #15 on: June 26, 2015, 01:49:02 am »

If you are thinking about working guns, check out this site:
http://rcwarshipcombat.com
They do exactly that, in fact they have battles, and sink each other.  They probably have some good ideas on how to get the guns to work.  In fact, you may even want to look at how they build hulls, just in case you wanted a class legal ship, should you ever decide to do battle.


Do a search on youtube as well, you can see them in action.
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Arrow5

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Re: build material for a warship
« Reply #16 on: June 26, 2015, 11:23:14 am »

I`m not sure if they are legal in UK.   I`d check first, you know "health and safety", "pollution"  but more important  insurance, 3rd party liability and all that sh... nonsense. <:(
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SteveB66

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Re: build material for a warship
« Reply #17 on: June 26, 2015, 06:15:11 pm »

Gas powered soft air BB guns are legal in the UK, so long as they are not BLACK. Any BB gun sold must be any colour other than BLACK.
You can get black ones but you need to be a member of a softair club that is UKARA affiliated and be able to prove it  ok2
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iamkyleme

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Re: build material for a warship
« Reply #18 on: June 26, 2015, 07:37:09 pm »

steveb66 don you find it odd that in uk black airsoft guns are illegal but black air rifles are not, neither are black crossbows and some of them have enough energy to take down a bear ... aint british law odd


also if you get a pen********************************************

Instructions for home constructions of weapons are not permitted

ken

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Arrow5

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Re: build material for a warship
« Reply #19 on: June 26, 2015, 08:15:42 pm »

Of course airsoft is legal in the UK but you need a licence in Scotland for airguns. I don't know if remote control air weapons are permitted in the UK.  Combat model ships are well established in other countries I don't see much about them in the UK, do they exist ?
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iamkyleme

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Re: build material for a warship
« Reply #20 on: June 26, 2015, 08:59:10 pm »

arrow5 ad far as i can tell , 5 min internet search on the subject it appears there are no clubs running it in uk , seems the hobby hasn't spread here yet,


but i know of a model boat club near me with a lot of members ill see if they can get one of these battles or something going and maybe it will be big here like in australia :)
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dreadnought72

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Re: build material for a warship
« Reply #21 on: June 26, 2015, 09:43:44 pm »

Ummm. Seems a bit nonsense to me. Barely scale ships sinking each other barely a metre or so apart. Stick 'em back up with tape? Where's the fun in that?

Andy
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iamkyleme

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Re: build material for a warship
« Reply #22 on: June 26, 2015, 10:52:43 pm »

well maybe its not for you , but others may like it .


i dont see the fun in going to a skate park for example, but i know people who love skate parks :)
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Arrow5

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Re: build material for a warship
« Reply #24 on: June 27, 2015, 08:26:19 am »

My point is that even if some people love it, is it permitted in the UK.  There was an attempt some 10 or 12 years ago to get something going in the Arundel area but I haven't heard anything since.   How is the construction of your battleship going Kyle , the blue foam route in post#6, will be un-sinkable if you get an oppo the shoot pellets at it.
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